This title appears in the Scientific Report :
2018
Please use the identifier:
http://dx.doi.org/10.1039/C8TA05066J in citations.
Catalysts from earth abundant materials in a scalable, stand-alone photovoltaic-electrochemical module for solar water splitting
Catalysts from earth abundant materials in a scalable, stand-alone photovoltaic-electrochemical module for solar water splitting
We report on the preparation and performance of catalysts from earth abundant materials and their implementation in a stand-alone photovoltaic-electrochemical (PV-EC) module with 64 cm2 active area. NiFeOX as the oxygen evolution reaction catalyst and NiMo as the hydrogen evolution reaction catalyst...
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Personal Name(s): | Welter, K. (Corresponding author) |
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Hamzelui, N. / Smirnov, V. / Becker, J.-P. / Jaegermann, W. / Finger, Friedhelm | |
Contributing Institute: |
Photovoltaik; IEK-5 |
Published in: | Journal of materials chemistry / A, 6 (2018) 33, S. 15968 - 15976 |
Imprint: |
London [u.a.]
RSC
2018
|
DOI: |
10.1039/C8TA05066J |
Document Type: |
Journal Article |
Research Program: |
Solar cells of the next generation |
Publikationsportal JuSER |
We report on the preparation and performance of catalysts from earth abundant materials and their implementation in a stand-alone photovoltaic-electrochemical (PV-EC) module with 64 cm2 active area. NiFeOX as the oxygen evolution reaction catalyst and NiMo as the hydrogen evolution reaction catalyst were electrodeposited on nickel sheets. We compare the NiFeOX/NiMo catalysts to a noble metal catalyst system consisting of IrOX and Pt regarding their potential for upscaling to large areas and their application and performance in the PV-EC module with a triple junction thin film silicon based solar cell. Additionally, we present long-term stability measurements of the catalyst systems (i) NiMo/NiFeOX and (ii) Ni/Ni under simulated day-night cycles. Overall, we show the feasibility of using earth abundant catalysts in an upscaled stand-alone PV-EC module. The NiMo/NiFeOX catalyst pair outperforms the precious metal catalysts with a solar-to-hydrogen efficiency of ηSTH(NiMo/NiFeOX) = 5.1% (ηSTH(Pt/IrOX) = 4.8%) and shows an excellent long-term stability in the simulated day-night cycles. |