Journal
CHEMSUSCHEM
Volume 7, Issue 11, Pages 3021-3027Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402288
Keywords
artificial photosynthesis; bipolar membranes; earth-abundant materials; PEC membranes; pH gradients
Funding
- Natural Sciences and Engineering Research Council (NSERC) of Canada
- Canada Research Chair program
- Province of Manitoba's Science and Technology International Collaboration Fund
- University of Manitoba
- Canada Foundation for Innovation (CFI)
- Manitoba Research and Innovation Fund
- Joint Center for Artificial Photosynthesis, a DOE Energy Innovation Hub through the Office of Science of the U.S. Department of Energy [DE-SC0004993]
- United States Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE) Postdoctoral Research Award under the EERE Fuel Cell Technologies Program
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A bipolar membrane can maintain a steady-state pH difference between the sites of oxidation and reduction in membrane-supported, solar-driven water-splitting systems without changing the overall thermodynamics required to split water. A commercially available bipolar membrane that can serve this purpose has been identified, its performance has been evaluated quantitatively, and is demonstrated to meet the requirements for this application. For effective utilization in integrated solar-driven water-splitting systems, such bipolar membranes must, however, be modified to simultaneously optimize their physical properties such as optical transparency, electronic conductivity and kinetics of water dissociation.
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