Shine - Nano-Tera 2016

8/18/2019 Shine - Nano-Tera 2016

1/19

Light Concentrator

PVs

Fluidics

Water Splitting


2/19

2

Largeelectrolyzer

Smallelectrolyzer

Optimalelectrolyzer

Optimizing Solar-Hydrogen Production

PV Electrolysis

PVElectrolysis


3/19

High Eciency Solar-H2

through PV design


4/19

!mpro"ing η through PV design#Si-Hetero$unction cells

• VOC % &'' mV (or single cells

• VOC % 2)* V (or module

Single cells +-series connected module


5/19

Simple, roust and high-eciency

• Operating point elo. /PP 0 staility

• High eciency o"er long time 1%*)234


6/19

E"en .ith earth-aundant catalysts

/icrostructured 5ic6elElectrodes

Stale operation (or%*'' hrs


7/19

7he roader space o( S-Hde"ices


8/19

irst demonstration o( a planar sel(-trac6ing concentrator 189- *:o4

;agolla V et al),Self-tracking solar concentrator with an acceptance angle of 32°, Optics E


9/19

!mpro"ement can help triggerimplementation

• =ecord eciency .ith non-preciousmaterials

• Simple, roust and scalale solution >

approaching ma


10/19

7oday, electrolyzers are too e


11/19

Bisrupting the electrolysis eld#memrane-less .ater-splitting

• 5o need (ore


12/19

Economic gains (rommemraneless operation

0 0.5 1 1.5 2 2.50

20

40

60

80

100

120

Potential [V]

C u r r e n t D e n s i t y [ A / c

m 2 ]

:'3

'3

Gains in capitalcost1?4

Gains in (eedstoc6 cost

1 2I3 or ')&IJ9Kg41@ppro


13/19

Fluidic gas separation

• Segre > Silererg Eect# Fluidic(orces control ule tra$ectory

Hashemi, /odestino, Psaltis, Ener) En") Sci), 2'*I, 8, 2''+-atent pending, 2'*I


14/19

Separation depends on No.rates

:)& cm9s=e 0')M

ml9h

:&cm9s=e 0M)

Cathode@node

O2 H2

Hashemi et al) Ener) En") Sci), 2'*I, 8, 2''+-2

S d t h l


15/19

Summary and technologyoutloo6

• High current densities %+'' m@9cm2

• Sa(e gas streams

• Aroad range o( electrolytes

!ncreasing throughput#

• Parallel plate

morphology• +B printing

technology


16/19

Pro$ect accomplishmentsOutput to scientifc community and society:

•*: pulications• patent applications

• Ph)B) students

• Gloal con(erence on Solar-H2 path.ays

Awards and media presence:

• Foreign Policy /agazines *'' Leading Gloal 7hin6ersQ Prize• 2'*I Energy and En"ironmental Science =eaders @.ard Lectureship

• Aest Student Presentation @.ard (rom the OS@, Energy and the En"ironmentCongress


17/19

@pproach to !ndustry• /id-scale and moility

sector O-grid energy storage and

(uel generation 1e)g) H2electrolyzer9(uel cell system

integrated .ith PV4

• Gas sensing On-chip microelectrolyzers (or

Name ionization detectors1F!B4

• Solar concentration

Planar concentration solutions


18/19

Early stage applicationtate-o-the-art: Aenchtop!B systems .ith integrated

2 generator

µFID system: !ntegrated SH!5Emicroelectrolyzer .ith miniutarized in-

silico F!B

Key advantages:

• Farication cost reductions

• Lo. energy consumption

• Sa(ety impro"ements due to lo. H2 "olumes

• Easily integreted into chemical processes (or monitoring

SH!5ERs electrolysistechnology

F!B needs to ede"eloped and integrate


19/19

SH!5E /emers

C) /oserEPFL B) PsaltisEPFL S) HaussenerEPFL T) AailatCSE/ @) AraunE/P@

E) ChinelloEPFL

S)/)H) HashemiEPFL

/) /odestinoEPFL

T)W) Schuettau( CSE/

=) 7othE/P@

B) AoraE/P@

S) 7emhurneEPFL

V) ;agollaEPFL

Documents

Shine - Nano-Tera 2016