This title appears in the Scientific Report :
2024
Please use the identifier:
http://dx.doi.org/10.1002/cssc.202301398 in citations.
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2023-05055 in citations.
CO2 electroreduction to syngas with tunable composition in an artificial leaf
CO2 electroreduction to syngas with tunable composition in an artificial leaf
Artificial leaves (a-leaves) can reduce carbon dioxide into syngas using solar power and could be combined with thermo- and biocatalytic technologies to decentralize the production of valuable products. By providing variable CO:H2 ratios on demand, a-leaves could facilitate optima...
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Personal Name(s): | Veenstra, Florentine LP |
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Cibaka, Therese / Martín, Antonio J / Weigand, Daniel / Kirchhoff, Joachim / Smirnov, Vladimir / Merdzhanova, Tsvetelina / Pérez-Ramírez, Javier | |
Contributing Institute: |
Photovoltaik; IEK-5 |
Published in: | ChemSusChem, 1864-5631 (2024) S. e202301398 |
Imprint: |
Weinheim
Wiley-VCH
2024
|
DOI: |
10.1002/cssc.202301398 |
DOI: |
10.34734/FZJ-2023-05055 |
Document Type: |
Journal Article |
Research Program: |
An Artificial Leaf: a photo-electro-catalytic cell from earth-abundant materials for sustainable solar production of CO2-based chemicals and fuels Cell Design and Development |
Link: |
OpenAccess Get full text |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2023-05055 in citations.
Artificial leaves (a-leaves) can reduce carbon dioxide into syngas using solar power and could be combined with thermo- and biocatalytic technologies to decentralize the production of valuable products. By providing variable CO:H2 ratios on demand, a-leaves could facilitate optimal combinations and control the distribution of products in most of these hybrid systems. However, the current design procedures of a-leaves concentrate on achieving high performance for a predetermined syngas composition. This study demonstrates that incorporating the electrolyte flow as a design variable enables flexible production without compromising performance. The concept was tested on an a-leaf using a commercial cell, a Cu2O:Inx cathodic catalyst, and an inexpensive amorphous silicon thin-film photovoltaic module. Syngas with CO:H2ratio in the range of 1.8-2.3 could be attained with only 2% deviation from the optimal cell voltage and controllable solely by catholyte flow. These features could be beneficial for downstream technologies such as Fischer Tropsch synthesis and anaerobic fermentation. |