Publications in Peer-Reviewed Journals in Peer... · 2 Publications in Peer-Reviewed Journals 88. N. Todorova, T. Giannakopoulou, N. Boukos, E. Vermisoglou, C. Lekakou, C. Trapalis,

Publications in Peer-Reviewed Journals

1

89. G. Pilatos, A. V. Perdikaki, A. Sapalidis, G. S. Pappas, T. Giannakopoulou, D. Tsoutsou,

E. Xenogiannopoulou, N. Boukos, A. Dimoulas, C. Trapalis, N. K. Kanellopoulos, G. N.

Karanikolos, Graphene by one-step chemical vapor deposition from ferrocene vapors:

Properties and electrochemical evaluation, J. Appl. Phys. 119, 064303 (2016).

http://dx.doi.org/10.1063/1.4941557

(a), (b), and (c) HR-TEM

images indicating few-

layer graphene in different

orientations after growth

at 800 °C for panels (a)

and (b) and at 740 °C for

panel (c). (d) XRD pattern

corresponding to a growth

temperature of 800 °C

revealing peaks attributed

to graphene (26.2° and

22.4°), and Fe-based

phases originating from

the catalyst. (e) and (f)

SEM images of the

sample corresponding to

growth of 800 °C for 1 h.

http://dx.doi.org/10.1063/1.4941557

2


88. N. Todorova, T. Giannakopoulou, N. Boukos, E. Vermisoglou, C. Lekakou, C.

Trapalis, Self-propagating solar light reduction of graphite oxide in water, Appl.

Surf. Sci. (2016) in press.

http://dx.doi.org/10.1016/j.apsusc.2016.04.088

87. A. Trapalis, N. Todorova, T. Giannakopoulou, N. Boukos, T. Speliotis, D.

Dimotikali, J. Yu, TiO2/graphene composite photocatalysts for NOx removal: A

comparison of surfactant-stabilized graphene and reduced graphene oxide, Appl.

Catal. B: Environ. 180 (2016) 637-647.

doi:10.1016/j.apcatb.2015.07.009


http://dx.doi.org/10.1016/j.apcatb.2015.07.009

3


86. I. Papailias, T. Giannakopoulou, N. Todorova, D. Demotikali, T. Vaimakis, C. Trapalis,

Effect of processing temperature on structure and photocatalytic properties of g-C3N4, Appl.

Surf. Sci. 358, Part A (2015) 278-286.


85. Z. Barbieriková, D. Dvoranová, M.-V. Sofianou, C. Trapalis, V. Brezová, UV-induced

reactions of Mg2+-doped anatase nanocrystals with exposed {0 0 1} facets: An EPR study, J.

Catalysis 331 (2015) 39-48.

http://dx.doi.org/10.1016/j.jcat.2015.08.009


http://dx.doi.org/10.1016/j.jcat.2015.08.009

4


84. S. Karapati, T. Giannakopoulou, N. Todorova, N. Boukos, D. Dimotikali, C. Trapalis,

Eco-efficient TiO2 modification for air pollutants oxidation, Appl. Catal. B: Environ. 176-177

(2015) 578-585.


83. I. Papailias, M. Giannouri, A. Trapalis, N. Todorova, T. Giannakopoulou, N. Boukos, C.

Lekakou, Decoration of crumpled rGO sheets with Ag nanoparticles by spray pyrolysis,

Appl. Surf. Sci. 358 (2015) 84-90.

doi:10.1016/j.apsusc.2015.08.143



5


82. E.C. Vermisoglou, T. Giannakopoulou, G. Romanos, M. Giannouri, N. Boukos, C. Lei,

C. Lekakou, C. Trapalis, Effect of hydrothermal reaction time and alkaline conditions on the

electrochemical properties of reduced graphene oxide, Appl. Surf. Sci. 358 (2015) 100-109.


81. E.C. Vermisoglou, T. Giannakopoulou, G.E. Romanos, N. Boukos, M. Giannouri, C. Lei,

C. Lekakou, C. Trapalis, Non-activated high surface area expanded graphite oxide for

supercapacitors, Appl. Surf. Sci. 358 (2015) 110-121.

doi:10.1016/j.apsusc.2015.08.123



6


80. N. Todorova, T. Giannakopoulou, K. Pomoni, J. Yu, T. Vaimakis, C. Trapalis,

Photocatalytic NOx oxidation over modified ZnO/TiO2 thin films, Catal. Today 252 (2015)

41-46.

http://dx.doi.org/10.1016/j.cattod.2014.11.008

79. T. Georgakopoulos, N. Todorova, K. Pomoni, C. Trapalis, On the transient

photoconductivity behavior of sol–gel TiO2/ZnO composite thin films, J. Non-Cryst. Solids

410 (2015) 135-141.

http://dx.doi.org/10.1016/j.jnoncrysol.2014.11.034

XRD patterns of

the sol–gel

TiO2/ZnO thin

films, heat treated

at 500 °C.



7


78. J. Yu, M. Jaroniec, W. Xiao, C. Trapalis, H. Liu, TiO2 Photocatalytic Materials

2014, International Journal of Photoenergy Volume 2015 (2015), Article ID 786562,

2 pages.

http://dx.doi.org/10.1155/2015/786562

77. M.-V. Sofianou, M. Tassi, V. Psycharis, N. Boukos, S. Thanos, T. Vaimakis, J.

Yu, C. Trapalis, Solvothermal synthesis and photocatalytic performance of Mn4+-

doped anatase nanoplates with exposed {0 0 1} facets, Appl. Catal. B: Environ. 162

(2015) 27-33.


http://dx.doi.org/10.1155/2015/786562


8


76. S. Karapati, , T. Giannakopoulou, N. Todorova, N. Boukos, S. Antiohos, D.

Papageorgiou, E. Chaniotakis, D. Dimotikali, C. Trapalis, TiO2 functionalization for

efficient NOx removal in photoactive cement, Appl. Surf. Sci. 319 (2014) 29-36.

http://dx.doi.org/10.1016/j.apsusc.2014.07.162 Experimental setup for

evaluation of the

photocatalytic activity in

NOx removal from air: (1) NO

cylinder, (2) compressor, (3–

5) gas flow controllers, (6)

humidifier, (7) air mixer, (8)

light irradiation source, (9)

photocatalytic reactor, (10)

analyzer, and (11) PC.

75. E.C. Vermisoglou, E. Devlin, T. Giannakopoulou, G. Romanos, N. Boukos, V. Psycharis,

C. Lei, C. Lekakou, D. Petridis, C. Trapalis, Reduced graphene oxide/iron carbide

nanocomposites for magnetic and supercapacitor applications, J. Alloys Comp. 590 (2014)

102-109.

doi:10.1016/j.jallcom.2013.11.087


http://dx.doi.org/10.1016/j.jallcom.2013.11.087

9


74. J. Yu, C. Trapalis, H. Yu, W. Fan, H. Liu, Nanosized Photocatalytic Materials 2013,

Journal of Nanomaterials Volume 2014 (2014), Article ID 873208, 2 pages.

http://dx.doi.org/10.1155/2014/873208

73. A. Athanasiou, A. Mitsionis, G. Skouras, N. Todorova, C. Trapalis, T. Vaimakis,

Thermogravimetric study of the surfactant-diethanolamine-titanium isopropoxide system

behavior, J. Therm. Anal. Calorim. 116 (2014) 15-25.

DOI 10.1007/s10973-013-3407-6

TG/DSC patterns for OA and TX surfactants

http://dx.doi.org/10.1155/2014/873208

http://download.springer.com/static/pdf/189/art:10.1007/s10973-013-3407-6.pdf?originUrl=http://link.springer.com/article/10.1007/s10973-013-3407-6&token2=exp=1463658894~acl=/static/pdf/189/art%3A10.1007%2Fs10973-013-3407

10


72. N. Todorova, T. Giannakopoulou, S. Karapati, D. Petridis, T. Vaimakis, C. Trapalis,

Composite TiO2/clays materials for photocatalytic NOx oxidation, Appl. Surf. Sci. 319

(2014) 113-120.


71. M.-V. Sofianou, M. Tassi, N. Boukos, S. Thanos, T. Vaimakis, J. Yu, C. Trapalis,

Solvothermal synthesis and photocatalytic performance of Mg2+-doped anatase nanocrystals

with exposed {0 0 1} facets, Catal. Today 230 (2014) 125-130.




11

70. T. Georgakopoulos, M.V. Sofianou, K. Pomoni, C. Trapalis, Electrical conductivity

mechanisms in titania hollow microspheres with dominant {0 0 1} facets, J. Alloys Comp.

586 (2014) 52-58.



SEM micrographs of

TiO2 anatase hollow

microspheres with

exposed {0 0 1} crystal

facets (a and b).

69. S. Karapati, T. Giannakopoulou, N. Todorova, N. Boukos, S. Antiohos, D. Papageorgiou,

E. Chaniotakis, D. Dimotikali, C. Trapalis, TiO2 functionalization for efficient NOx removal

in photoactive cement, Appl. Surf. Sci. 319 (2014) 29-36.


High

resolution

TEM

micrographs

of OA-3, OM-

3 and OAOM-

3 titania

nanoparticles.



12


68. A. Athanasiou, A. Mitsionis, T. Vaimakis, P. Pomonis, D. Petrakis, L.

Loukatzikou, N. Todorova, C. Trapalis, S. Ladas, A novel route for the production

of TiO2 photocatalysts with low energy gap, via Triton-X and oleic acid surfactants,

Appl. Surf. Sci. 319 (2014) 143-150.


SEM

micrographs of

the

TiO2 materials.

67. M.-V. Sofianou, N. Boukos, T. Vaimakis, C. Trapalis, Decoration of TiO2

anatase nanoplates with silver nanoparticles on the {1 0 1} crystal facets and their

photocatalytic behavior, Appl. Catal. B: Environ. 158-159 (2014) 91-95.




13


66. T. Giannakopoulou, N. Todorova, M. Giannouri, J. Yu, C. Trapalis, Optical and

photocatalytic properties of composite TiO2/ZnO thin films, Catal. Today 230 (2014) 174-

180.


65. G. Pilatos, E. C. Vermisoglou, A. Perdikaki, E. Devlin, G. S. Pappas, G. E. Romanos, N.

Boukos, T. Giannakopoulou, C. Trapalis, N. K. Kanellopoulos, G. N. Karanikolos, One-step,

in situ growth of unmodified graphene – magnetic nanostructured composites, Carbon 66

(2014) 467-475.

http://dx.doi.org/10.1016/j.carbon.2013.09.023

(a) SEM image of the

graphene magnetic

material on silicon

after CVD. (b) XRD

pattern identifying the

Fe3C (cementite)

phase. (c), (d) HR-

TEM images showing

graphene layers

around Fe3C. The

inset is a FFT of the

image in panel (c).

Growth was carried

out at 740 °C for 3 h.



14

64. J. Yu, M. Jaroniec, G. Lu, C. Trapalis, G. Liu, TiO2 Photocatalytic Materials 2013,

International Journal of Photoenergy Volume 2013 (2013), Article ID 534164, 2 pages.

http://dx.doi.org/10.1155/2013/534164


63. M. Giannouri, Th. Kalampaliki, N. Todorova, T. Giannakopoulou, N. Boukos, D.

Petrakis, T. Vaimakis, C. Trapalis, One-Step Synthesis of TiO2/Perlite Composites by Flame

Spray Pyrolysis and Their Photocatalytic Behavior, International Journal of Photoenergy

Volume 2013 (2013), Article ID 729460, 8 pages.

http://dx.doi.org/10.1155/2013/729460

Schematic of the

flame spray

pyrolysis device.

During spray

procedure and

after evaporation

and combustion of

precursor,

TiO2 nanoparticles

are formed on

perlite substrate.

http://dx.doi.org/10.1155/2013/534164

http://dx.doi.org/10.1155/2013/729460

15


62. J.Yu, C. Trapalis, P. Zhang, G. Li, H. Yu, Environmental Photocatalysis 2013,

International Journal of Photoenergy Volume 2013 (2013), Article ID 786806, 3

pages.

http://dx.doi.org/10.1155/2013/786806

61. M.-V. Sofianou, V. Psycharis, N. Boukos, T. Vaimakis, J. Yu, R. Dillert, D.

Bahnemann, C. Trapalis, Tuning the photocatalytic selectivity of TiO2 anatase

nanoplates by altering the exposed crystal facets content, Appl. Catal. B: Environ.

142-143 (2013) 761-768.

doi:10.1016/j.apcatb.2013.06.009

http://dx.doi.org/10.1155/2013/786806


16


60. V. Georgakilas, A. Kouloumpis, D. Gournis, A. Bourlinos, C. Trapalis, R. Zboril, Tuning

the Dispersibility of Carbon Nanostructures from Organophilic to Hydrophilic: Towards the

Preparation of New Multipurpose Carbon-Based Hybrids, Chem. A Eur. J 19 (2013) 12884-

12891.

DOI: 10.1002/chem.201301200

59. N. Todorova, T. Vaimakis, D. Petrakis, S. Hishita, N. Boukos, T. Giannakopoulou, M.

Giannouri, S. Antiohos, D. Papageorgiou, E. Chaniotakis, C. Trapalis, N and N,S-doped TiO2

photocatalysts and their activity in NOx oxidation, Catal. Today 209 (2013) 41-46.

doi:10.1016/j.cattod.2012.11.019

http://onlinelibrary.wiley.com/doi/10.1002/chem.201301200/abstract;jsessionid=E915237E356A12BD9756A942B8ABB4C0.f04t03


17


58. K. Pomoni, T. Georgakopoulos, M.V. Sofianou, C. Trapalis, Thermal treatment and

environment effect on transient photoconductivity behavior of anatase TiO2 with dominant {0

0 1} facets, J. Alloys Comp. 558 (2013) 1-5.


UV–Vis diffuse reflectance

spectra and in the inset the

absorption spectra of the

TiO2 anatase nanopowders

(a) as prepared, and (b)

calcinated at 600 °C.

57. M. V. Sofianou, T. Vaimakis, C. Trapalis, Study of the Photocatalytic Activity of Anatase

TiO2 Nano-Microstructures with Exposed {001} Facets, Nanosci. Nanotech. Let. 5 (2013)

461-465.

http://dx.doi.org/10.1166/nnl.2013.1556



18


56. N. Todorova, T. Vaimakis, T. Giannakopoulou, S. Hishita, A. Griniari, E. Varadas, C.

Trapalis, N- and N, C-Doped TiO2 Powders and Their Visible Light Activity, Nanosci. Nanotech.

Let. 5 (2013) 475-479.


55. K. Pomoni, M.V. Sofianou, T. Georgakopoulos, N. Boukos, C. Trapalis, Electrical

conductivity studies of anatase TiO2 with dominant highly reactive {0 0 1} facets, J. Alloys

Comp. 548 (2013) 194-200.


TEM micrographs of the TiO2 anatase nanoplates, (a) as prepared (b) calcinated at 600 °C.



19


54. M. Aslanidou, T. Vaimakis, A. Mitsionis, C. Trapalis, A novel approach on the preparation of

biphasic calcium phosphate bioceramics under physiological conditions. The effect of the starting

material, Ceramics International 39 (2013) 539-546.

http://dx.doi.org/10.1016/j.ceramint.2012.06.060

SEM images of raw samples prepared in pH 7.5 without ageing (a), after 1 day (b) and after 2 day (c).

53. J. Yu, P. Zhang, H. Yu, C. Trapalis, Environmental Photocatalysis, International Journal of

Photoenergy Volume 2012 (2012), Article ID 594214, 4 pages.

http://dx.doi.org/10.1155/2012/594214


http://dx.doi.org/10.1155/2012/594214

20


52. M.-V. Sofianou, C. Trapalis , V. Psycharis, N. Boukos, T. Vaimakis, J. Yu, W. Wang, Study of

TiO2 anatase nano and microstructures with dominant {001} facets for NO oxidation, Environ.

Sci. Pollut. Res. 19 (2012) 3719-3726.

DOI 10.1007/s11356-012-0747-x

SEM micrographs of TiO2 anatase nanoplates with {001} crystal facets (a, b) and of TiO2 anatase hollow

microspheres with exposed {001} crystal facets (c, d)

51. T. Giannakopoulou, N. Todorova, G. Romanos, T. Vaimakis, R. Dillert, D. Bahnemann, C.

Trapalis, Composite hydroxyapatite/TiO2 materials for photocatalytic oxidation of NOx, Mater.

Sci. Eng. B 177 (2012) 1046-1052.

http://dx.doi.org/10.1016/j.mseb.2012.05.014

SEM images of TiO2 (a), HT-1 (b), HA (c) samples with magnification 20,000× and HA sample (d) with

magnification 80,000×.

http://download.springer.com/static/pdf/409/art:10.1007/s11356-012-0747-x.pdf?originUrl=http://link.springer.com/article/10.1007/s11356-012-0747-x&token2=exp=1463740851~acl=/static/pdf/409/art%3A10.1007%2Fs11356-012-0747


21


50. A. Mitsionis, T. Vaimakis, C. Trapalis, N. Todorova, D. Bahnemann, R. Dillert,

Hydroxyapatite/titanium dioxide nanocomposites for controlled photocatalytic NO oxidation,

Appl. Catal. B Environ. 106 (2011) 398-404.


49. K. Pomoni, A. Vomvas, N. Todorova, T. Giannakopoulou, K. Mergia, C. Trapalis, Thermal

treatment effect on structure, electrical conductivity and transient photoconductivity behavior of

thiourea modified TiO2 sol–gel thin films, J. Alloys Comp. 509 (2011) 7253-7258.


GIXRD patterns of the thiourea modified TiO2 samples, treated at: (a) 400 °C, (b) 500 °C, (c) 600 °C, (d)

800 °C and (e) 1000 °C. The asterisk (*) denotes the anatase Bragg peak positions, and the open circle (o) the

rutile Bragg peak positions.



22


48. A. B. Bourlinos, M. A. Karakassides, P. Stathi, Y. Deligiannakis, R. Zboril, P. Dallas, T. A.

Steriotis, A. K. Stubos, C. Trapalis, Pyrolytic formation of a carbonaceous solid for heavy metal

adsorption, J. Mater. Sci. 46 (2011) 975-982.

DOI 10.1007/s10853-010-4854-0

Solid-state pyrolysis of acetylenedicarboxylic acid, monopotassium salt in air results in bulk quantities of the

entitled carbonaceous solid

47. E. C. Vermisoglou, G. E. Romanos, G. N. Karanikolos, N. K. Kanellopoulos, Catalytic NOx

removal by single-wall carbon nanotube-supported Rh nanoparticles, J. Hazard. Mater. 194

(2011) 144-155.

http://dx.doi.org/10.1016/j.jhazmat.2011.07.078

(a) Raman spectra of

pristine and Rh-

decorated SWNTs. (b)

XRD pattern of the

Rh-decorated SWNTs.

(c) Particle dispersion

in the Rh/SWNT

composite. (d) Dark-

field TEM revealing

the Rh crystallites.

High resolution TEM

images of (e) a particle

assembly and (f) a

nanotube bundle

indicating the

existence of SWNTs.

http://download.springer.com/static/pdf/170/art:10.1007/s10853-010-4854-0.pdf?originUrl=http://link.springer.com/article/10.1007/s10853-010-4854-0&token2=exp=1463742436~acl=/static/pdf/170/art%3A10.1007%2Fs10853-010-4854


23


46. E. C. Vermisoglou, G. Pilatos, G. E. Romanos, E. Devlin, N. K. Kanellopoulos, G. N.

Karanikolos, Magnetic carbon nanotubes with particle-free surfaces and high drug loading

capacity, Nanotechnology Nanotechnology 22 (2011) 355602 (10pp).

http://dx.doi.org/10.1088/0957-4484/22/35/355602(a) Cross-section and

(b) top-view SEM images

of template-free

magCNTs showing

monodisperse and open-

ended nanotubes.

(c) TEM image of a

magCNT showing

particles dispersed

throughout its length.

(d) HR-TEM images of

particles encapsulated

within the tube graphitic

wall. All microscopy

images have been

acquired after prolonged

exposure of the

magCNTs to

concentrated HNO3, in

order to remove any

surface-bound particles.

45. R. Zbořil, F. Karlický, A. B. Bourlinos, T. A. Steriotis, A. K. Stubos, V. Georgakilas, K.

Šafářová, D. Jančík, C. Trapalis, M. Otyepka, Graphene Fluoride: A Stable Stoichiometric

Graphene Derivative and its Chemical Conversion to Graphene, Small 6 (2010) 2885-2891.

DOI: 10.1002/smll.201001401

TEM images (top and bottom

left) of CF sheets obtained after

graphite fluoride exfoliation in

sulfolane. Arrows in the

HRTEM image (top left)

indicate highly transparent

graphene fluoride monolayers.

The SAED pattern (bottom

right) confirms the stoichiometry

and structure of the layers

corresponding to the original

graphite fluoride.

http://dx.doi.org/10.1088/0957-4484/22/35/355602

http://onlinelibrary.wiley.com/doi/10.1002/smll.201001401/pdf

24


44. K. Mahmud, A. Mitsionis, T. Vaimakis, N. Kourkoumelis, C. Trapalis, The threonine effect on

calcium phosphate preparation from a solution containing Ca/P = 1.33 molar ratio, Ceramics

International 36 (2010) 1893-1899.


SEM micrographs of uncalcined samples of material.

43. D. Šojić, V. Despotović, B. Abramović, N. Todorova, T. Giannakopoulou, C. Trapalis,

Photocatalytic Degradation of Mecoprop and Clopyralid in Aqueous Suspensions of

Nanostructured N-doped TiO2, Molecules 15 (2010) 2994-3009.

http://dx.doi.org/10.3390/molecules15052994

Structures of the pesticides.


http://dx.doi.org/10.3390/molecules15052994

25


42. V. Georgakilas, A. B. Bourlinos, R. Zboril, T. A. Steriotis, P. Dallas, A. K. Stubos, C.

Trapalis, Organic functionalisation of graphenes, Chem. Commun. 46 (2010) 1766-1768.

DOI: 10.1039/B922081J

41. A. I. Mitsionis, T. C. Vaimakis, C. C. Trapalis, The effect of citric acid on the sintering of

calcium phosphate bioceramics, Ceramics International 36 (2010) 623-634.

doi:10.1016/j.ceramint.2009.09.034

SEM microphotograph of uncalcined samples.

http://pubs.rsc.org/en/Content/ArticleLanding/2010/CC/b922081j


26


40. E. C. Vermisoglou, A. Labropoulos, G. E. Romanos, E. Kouvelos, S. Papageorgiou, G. N.

Karanikolos, F. Katsaros, N. K. Kanellopoulos, J. Nanosci. Nanotech. 10 (2010) 5971-5980.

http://dx.doi.org/10.1166/jnn.2010.2610

Hydrogen adsorption isotherms at 25oC, (▲) Pristine SWNTs, (♦)SWNTs/PEG/Pd as produced, (◊)SWNTs/PEG/Pd

after hydrogen loading at 220oC, (o)SWNTs/PEG/Pd after air oxidation at 400oC, Inset: Isotherm at –196oC of

SWNTs/PEG/Pd as produced.

39. G. Pilatos, E. C. Vermisoglou, G. E. Romanos, G. N. Karanikolos, N. Boukos, V. Likodimos,

N.K. Kanellopoulos, A Closer Look Inside Nanotubes: Pore Structure Evaluation of Anodized

Alumina Templated Carbon Nanotube Membranes Through Adsorption and Permeability Studies,

Adv. Funct. Mater. 20 (2010) 2500-2510.

DOI: 10.1002/adfm.200901429

http://dx.doi.org/10.1166/jnn.2010.2610

http://onlinelibrary.wiley.com/doi/10.1002/adfm.200901429/pdf

27


38. E. C. Vermisoglou, G. N. Karanikolos, G. Pilatos, E. Devlin, G. E. Romanos, C. Veziri, N. K.

Kanellopoulos, Aligned Carbon Nanotubes with Ferromagnetic Behavior, Adv. Mater. 22 (2010)

473-477.

DOI: 10.1002/adma.200901900

37. P. Vitanov, A. Harizanova, T. Ivanova, C. Trapalis, N. Todorova, Sol-gel ZrO2 and ZrO2-Al2O3

nanocrystalline thin films on Si as high-k dielectrics, Mater. Sci. Eng. B Volume 165 (2009) 178-

181.


XRD spectra of ZrO2 and (ZrO2)x(Al2O3)1−x films, annealed at different temperatures.

http://onlinelibrary.wiley.com/doi/10.1002/adma.200901900/pdf


28


36. A. B. Bourlinos, V. Georgakilas, R. Zboril, T. A. Steriotis, A. K. Stubos, C. Trapalis, Aqueous-

phase exfoliation of graphite in the presence of polyvinylpyrrolidone for the production of water-

soluble graphenes, Solid State Commun. 149 (2009) 2172-2176.

http://dx.doi.org/10.1016/j.ssc.2009.09.018

Top: The Tyndall scattering effect is seen in the left image for the aqueous colloidal dispersion of graphite after

settling and centrifugation (0.1 mg ml−1). The cuvette on the right shows the optical transparency of the same

dispersion. Bottom: Schematic model of PVP-coated graphene.

35. C. Trapalis, J.M. Calderon-Moreno, N. Todorova, V. S. Teodorescu, M. Stoica, M. Nicolescu,

M. Anastasescu, M. Gartner, M. Zaharescu, Nitridation and crystallization of titanium oxynitride

by thermal treatment of TiO2-anatase films in NH3, J. Optoelectron. Advan. Mater. 11 (2009)

1810-1814.

http://dx.doi.org/10.1016/j.ssc.2009.09.018

29


34. V. Belessi, G. Romanos, N. Boukos, D. Lambropoulou, C. Trapalis, Removal of Reactive Red

195 from aqueous solutions by adsorption on the surface of TiO2 nanoparticles, J. Hazard. Mater.

170 (2009) 836-844.

doi:10.1016/j.jhazmat.2009.05.045

Chemical structure of Reactive Red 195.

33. T. Giannakopoulou, N. Todorova, P. Osiceanu, A. Lagoyannis, T. Vaimakis, C. Trapalis,

Description of TiO2 thin films treated in NH3 atmosphere by optical dispersion models, Thin

Solid Films 517 (2009) 6694-6699.

http://dx.doi.org/10.1016/j.tsf.2009.05.015

The XRD patterns of the prepared films.



30


32. G. Dobrescu, M. Anastasescu, M. Stoica, A. Szekeres, N. Todorova, C. Trapalis, M. Gartner,

A fractal analysis of TiO2 sol-gel films treated under different atmospheres, J. Optoelectron. Adv.

Mater. 11 (2009) 1359-1362.

31. C. Trapalis, N. Todorova, M. Anastasescu, C. Anastasescu, M. Stoica, M. Gartner, M.

Zaharescu, T. Stoica, Atomic force microscopy study of TiO2 sol–gel films thermally treated

under NH3 atmosphere, Thin Solid Films 517 (2009) 6243-6247.

doi:10.1016/j.tsf.2009.02.070

3D AFM topography of the TiO2 samples thermally treated at different temperatures under NH3atmosphere: (a) As-

prepared; (b) − 400 C; (c) − 500 C; (d) − 800 C; (e) − 1000 C; (f) RMS roughness of the TiO2 films as a function of

thermal treatment temperature (scale of 4 µm).


31


30. T. Giannakopoulou, D. Niarchos, C. Trapalis, Experimental investigation of electric and

magnetic responses in composites with dielectric resonator inclusions at microwave frequencies,

Appl. Phys. Lett. 94 (2009) 242506.

http://dx.doi.org/10.1063/1.3156001

A photograph of the cubes and the toroidal samples with cubic inclusions.

29. V. Georgakilas, P. Dallas, D. Niarchos, N. Boukos, C. Trapalis, Polypyrrole/MWNT

nanocomposites synthesized through interfacial polymerization, Synthetic Metals 159 (2009)

632-636.

doi:10.1016/j.synthmet.2008.12.007

The various stages of the interfacial

polymerization, (upper) with diluted and

(down) with more concentrated mixtures.

(Upper) a: Dispersion of MWNT and

dissolution of pyrrole in chloroform and

ferric ions in water; b: formation of

pyrrole oligomers on the MWNT surface;

c: enlargement of the composites as the

polymerization proceeds; d: the polymer

composite become hydrophilic and pass to

the organic phase; e: in the final stage the

composite in transferred to the interphase.

(Down) f: The first stage with

concentrated MWNT dispersion in

chloroform and g: the final stage with the

formation of the polymer composite in the

interphase.

http://dx.doi.org/10.1063/1.3156001

http://dx.doi.org/10.1016/j.synthmet.2008.12.007

32


28. M. Gartner, C. Anastasescu, M. Zaharescu, M. Enache, L. Dumitru, T. Stoica, T. F. Stoica,

C. Trapalis, The simulation in the real conditions of antibacterial activity of TiO2 (Fe) films with

optimized morphology, Ceram. Eng. Sci. Proc. 29 (2009) 67-76.

27. C. Văcăroiu, M. Enache, M. Gartner, G. Popescu, M. Anastasescu, A. Brezeanu, N. Todorova,

T. Giannakopoulou, C. Trapalis, The effect of thermal treatment on antibacterial properties of

nanostructured TiO2(N) films illuminated with visible light, World J. Microbiol. Biotechnol. 25

(2009) 27-31.

DOI 10.1007/s11274-008-9856-6

AFM analysis of sample 1 (scale: 1 μm) revealing the fine grain (in fact these grains are most probable

anatase crystallites) structure.

http://download.springer.com/static/pdf/125/art%3A10.1007%2Fs11274-008-9856-6.pdf?originUrl=http://link.springer.com/article/10.1007/s11274-008-9856-6&token2=exp=1463749314~acl=/static/pdf/125/art%253A10.1007%252Fs11274-008-9856

33


26. E. C. Vermisoglou, G. E. Romanos, V. Tzitzios, G. N. Karanikolos, V. Akylas, A. Delimitis, G.

Pilatos, N.K. Kanellopoulos, Synthesis of nanocrystalline gold–carbon nanotube composites and

evaluation of their sorption and catalytic properties, Microp. Mesop. Mater. 120 (2009) 122-131.

http://dx.doi.org/10.1016/j.micromeso.2008.10.040

(a): Au particle size distribution as-derived from TEM images. (b): TEM image of the Au-decorated SWNTs. (c):

TEM image of the pristine SWNTs.

25. T. Giannakopoulou, N. Todorova, T. Vaimakis, S. Ladas, C. Trapalis, Study of Fluorine-Doped

TiO2TiO2 Sol-Gel Thin Coatings, J. Sol. Energy Eng 130(4) (2008) 041007.

doi:10.1115/1.2969804


http://solarenergyengineering.asmedigitalcollection.asme.org/article.aspx?articleid=1474367

34


24. M. Ksibi, S. Rossignol, J.-M. Tatibouët, C. Trapalis, Synthesis and solid characterization of

nitrogen and sulfur-doped TiO2 photocatalysts active under near visible light, Mater. Lett. 62

(2008) 4204-4206.

http://dx.doi.org/10.1016/j.matlet.2008.06.026

XRD patterns of the titania powders prepared at 550 °C for 2 h using (a) water only, (b) ammonium hydroxide (c) urea,

(d) thiourea and (e) Methyldibenzothiophene as precipitation reagents compared to Degussa-P25. (A) Anatase; (R) rutile.

23. K. Pomoni, A. Vomvas, C. Trapalis, Electrical conductivity and photoconductivity studies of

TiO2 sol–gel thin films and the effect of N-doping, J. Non- Cryst. Solids 354 (2008) 4448-4457.


AFM images of sol–gel derived TiO2 film sintered at 450 °C



35


22. M. Gartner, P. Osiceanu, M. Anastasescu, T. Stoica, T.F. Stoica, C. Trapalis, T.

Giannakopoulou, N. Todorova, A. Lagoyannis, Investigation on the nitrogen doping of

multilayered, porous TiO2 thin films, Thin Solid Films 516 (2008) 8184-8189.

doi:10.1016/j.tsf.2008.04.027

XRD spectra of TiO2 and N-doped TiO2 samples.

21. N. Todorova, T. Giannakopoulou, T. Vaimakis, C. Trapalis, Structure tailoring of fluorine-

doped TiO2 nanostructured powders, Mater. Sci. Eng. B 152 (2008) 50-54.


XRD patterns of F-doped TiO2 powders with fluorine precursor NH4F in atomic ratios: (a) F/T = 10/90 and (b)

F/Ti = 20/80.



36


20. V. Georgakilas, A. Bourlinos, D. Gournis, T. Tsoufis, C. Trapalis, A. Mateo-Alonso, M. Prato,

Multipurpose Organically Modified Carbon Nanotubes: From Functionalization to Nanotube

Composites, J. Am. Chem. Soc 130 (2008) 8733-8740.

DOI: 10.1021/ja8002952

19. T. C. Vaimakis, E. D. Economou, C. C. Trapalis, Calorimetric study of dissolution kinetics of

phosphorite in diluted acetic acid, J. Therm. Anal. Cal. 92 (2008) 783-789.

DOI: 10.1007/s10973-007-8025-8

Heat flow rate curves for the dissolution of phosphorite at various temperatures.

http://pubs.acs.org/doi/pdf/10.1021/ja8002952

http://download.springer.com/static/pdf/525/art%3A10.1007%2Fs10973-007-8025-8.pdf?originUrl=http://link.springer.com/article/10.1007/s10973-007-8025-8&token2=exp=1463996598~acl=/static/pdf/525/art%253A10.1007%252Fs10973-007-8025

37


18. N. Todorova, T. Giannakopoulou, G. Romanos, T. Vaimakis, J. Yu, C. Trapalis, Preparation of

Fluorine-Doped TiO2 Photocatalysts with Controlled Crystalline Structure, International Journal

of Photoenergy Volume 2008 (2008), Article ID 534038, 9 pages.

http://dx.doi.org/10.1155/2008/534038

DTA, TG, DTG patterns of undoped (a) and fluorinated (b) titania powders.

17. M. Gartner, C. Trapalis, N. Todorova, T. Giannakopoulou, G. Dobrescu, M. Anastasescu, P.

Osiceanu, A. Ghita, M. Enache, L. Dumitru, T. Stoica, M. Zaharescu, J.Y. Bae, S.-H. Suh,

Doped sol-gel TiO2 films for biological applications, Bull. Korean Chem. Soc. 29 (2008) 1038-

1042.

http://dx.doi.org/10.1155/2008/534038

38


16. V. Georgakilas, A. B. Bourlinos, R. Zboril, C. Trapalis, Synthesis, Characterization and

Aspects of Superhydrophobic Functionalized Carbon Nanotubes, Chem. Mater. 20 (2008) 2884-

2886.

DOI: 10.1021/cm7034079

Synthesis Steps for the Perfluorinated CNTs

15. R. Zboril, A. Bakandritsos, M. Mashlan, V. Tzitzios, P. Dallas, C. Trapalis, D. Petridis, One-

step solid state synthesis of capped γ-Fe2O3 nanocrystallites, Nanotechnology 19 (2008) 095602

(8pp).

http://dx.doi.org/10.1088/0957-4484/19/9/095602

(a) TEM micrograph of palm-[γ -Fe2O3] and (b) detail demonstrating the full capping of the particles.

http://pubs.acs.org/doi/pdf/10.1021/cm7034079

http://dx.doi.org/10.1088/0957-4484/19/9/095602

39


14. K. Pomoni, A. Vomvas, C. Trapalis, Dark conductivity and transient photoconductivity of

nanocrystalline undoped and N-doped TiO2 sol–gel thin films, Thin Solid Films 516 (2008) 1271-

1278.


Top view AFM images of sol–gel undoped and N-doped derived TiO2 thin films, heat-treated (a): under

O2atmosphere at 500 °C, (b): under NH3 atmosphere at 500 °C, (d): under O2 atmosphere at 600 °C and (c): under

NH3 atmosphere at 600 °C.

13. E. C. Vermisoglou, G. Pilatos, G. E. Romanos, G. N. Karanikolos, N. Boukos, K. Mertis, N.

Kakizis, N. K. Kanellopoulos, Synthesis and characterisation of carbon nanotube modified

anodised alumina membranes, Microp. Mesop. Mater. 110 (2008) 25-36.

doi:10.1016/j.micromeso.2007.08.001

Cross-sectional SEM image of the CNT modified anodised alumina membrane with pore size 200 nm.



40


12. A. Vomvas, K. Pomoni, C. Trapalis, N. Todorova, Photoconductivity in sol-gel TiO2 thin

films with and without ammonia treatment, Mater. Sci. Poland 25 (2007) 809-816.

11. T. Giannakopoulou, N. Todorova, C. Trapalis, T. Vaimakis, Effect of fluorine doping and SiO2

under-layer on the optical properties of TiO2 thin films, Mater. Lett. 61 (2007) 4474-4477.


XRD patterns of TiO2 films deposited on SL and SiSL substrate from solutions with (F20) and without (F0)

fluorine precursor.


41


10. A. B. Bourlinos, V. Georgakilas, N. Boukos, P. Dallas, C. Trapalis, E.P. Giannelis, Silicone-

functionalized carbon nanotubes for the production of new carbon-based fluids, Carbon 45 (2007)

1583-1585.


Left: liquid texture of the hybrid material at room temperature. Right: the corresponding colloidal dispersion in

toluene (10 mg ml−1).

9. A. B. Bourlinos, A. Bakandritsos, R. Zboril, M. Karakassides, C. Trapalis, Preparation of a

water-dispersible carbon–silica composite derived from a silylated molecular precursor, Carbon

45 (2007) 1108-1111.


TEM image of the water-dispersible carbon–silica composite. A drop from an aqueous dispersion of the

composite was placed on a copper grid and evaporated prior direct observation.



42


8. A. B. Bourlinos, Th. A. Steriotis, M. Karakassides, Y. Sanakis, V. Tzitzios, C. Trapalis, E.

Kouvelos, A. Stubos, Synthesis, characterization and gas sorption properties of a molecularly-

derived graphite oxide-like foam, Carbon 45 (2007) 852-857.

doi:10.1016/j.carbon.2006.11.008

Schematic of the graphite oxide-like foam synthesis by air pyrolysis of the molecular precursor.

7. P. Dallas, D. Niarchos, D. Vrbanic, N. Boukos, S. Pejovnik, C. Trapalis, D. Petridis, Interfacial

polymerization of pyrrole and in situ synthesis of polypyrrole/silver nanocomposites, Polymer 48

(2007) 2007-2013.

http://dx.doi.org/10.1016/j.polymer.2007.01.058

TEM images in various scales showing the dispersion of spherical silver nanoparticles in the polypyrrole matrix.


http://dx.doi.org/10.1016/j.polymer.2007.01.058

43


6. E. C. Vermisoglou, V. Georgakilas, E. Kouvelos, G. Pilatos, K. Viras, G. Romanos, N. K.

Kanellopoulos, Microp. Mesop. Mater. 99 (2007) 98-105.

doi:10.1016/j.micromeso.2006.07.035

(a) Hydrophilic SWNTs prepared by wrapping of the water–soluble poly (sodium 4-styrene sulfonate) around

SWNTs and (b) organophilic SWNTs developed by forming amide bonds with oleylamine.

5. A. B. Bourlinos, P. Dallas, Y. Sanakis, D. Stamopoulos, C. Trapalis, D. Niarchos, Synthesis and

characterization of a π-conjugate, covalent layered network derived from condensation

polymerization of the 4, 4′-bipyridine-cyanuric chloride couple, Europ. Polym. J. Volume 42

(2006) 2940-2948.

http://dx.doi.org/10.1016/j.eurpolymj.2006.07.025

Schematic illustration of the layered organic covalent network.


http://dx.doi.org/10.1016/j.eurpolymj.2006.07.025

44


4. C. Trapalis, M. Gartner, M. Modreanu, G. Kordas, M. Anastasescu, R. Scurtu, M. Zaharescu,

Stabilization of the anatase phase in TiO2(Fe3+, PEG) nanostructured coatings, Appl. Surf. Sci.

253,(2006) 367-371.


SEM micrograph of three-layered TiO2(Fe3+, 0.278 mol PEG600)/SiO2/glass film: (a) as-deposited one-layer film;

(b) annealed one-layer film; (c and d) annealed three-layer film.

3. J. Yu, H. Yu, B. Cheng, C. Trapalis, Effects of calcination temperature on the microstructures

and photocatalytic activity of titanate nanotubes, J. Mol. Catal. A Chem. 249 (2006) 135-142.

doi:10.1016/j.molcata.2006.01.003


http://dx.doi.org/10.1016/j.molcata.2006.01.003

45


2. G. C. Koumoulidis, C. C. Trapalis, T. C. Vaimakis, Sintering of hydroxyapatite lath-like

powders, J. Therm. Anal. Cal. 84 (2006) 165-174.

DOI: 10.1007/s10973-005-7210-x

TEM bright field micrographs of HAp ‘lath-like’ particles. The thermal treatment temperatures are indicated. Insert in

5b and c shows the associated selected area electron diffraction pattern verifying that the particles are Hap.

1. C. Trapalis, G. Kordas, P. Osiceanu, A. Ghita, M. Anastasescu, M. Crisan, C. Anastasescu, M.

Zaharescu, Surface Stoichiometry and Structural Properties of Copper-Containing Sol–Gel SiO2

Films, Plasma Process. Polym. 3 (2006) 192-196.

DOI: 10.1002/ppap.200500120

http://download.springer.com/static/pdf/662/art%3A10.1007%2Fs10973-005-7210-x.pdf?originUrl=http://link.springer.com/article/10.1007/s10973-005-7210-x&token2=exp=1464005543~acl=/static/pdf/662/art%253A10.1007%252Fs10973-005-7210

http://onlinelibrary.wiley.com/doi/10.1002/ppap.200500120/pdf

Documents

Publications in Peer-Reviewed Journals in Peer... · 2 Publications in Peer-Reviewed Journals 88. N. Todorova, T. Giannakopoulou, N. Boukos, E. Vermisoglou, C. Lekakou, C. Trapalis,