A Stabilized, Intrinsically Safe, 10% Efficient, Solar‐Driven Water‐Splitting Cell Incorporating Earth‐Abundant Electrocatalysts with Steady‐State pH Gradients and Product Separation Enabled by a Bipolar Membrane
Abstract
An efficient, stable, and intrinsically safe solar water-splitting device is demonstrated using a III–V tandem junction photoanode, an acid-stable, earth-abundant hydrogen evolution catalyst, and a bipolar membrane. The integrated photoelectrochemical cell operates under a steady-state pH gradient and achieves ≈10% solar-to-hydrogen conversion efficiency, >100 h of stability in a large (>1 cm2) photoactive area in relation to most previous reports.
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Another study found the highest FEHCOOH at an optimal loading of 50 wt% Nafion.
“whereas another study found the highest FEHCOOH at an optimal loading of 50 wt% Nafion.[182,183]”
From Electrochemical CO <sub>2</sub> Reduction into Chemical Feedstocks: From Mechanistic Electrocatalysis Models to System Design (2019) · cites this paper as [183]
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- Authors
- Sun, K., Liu, R., Chen, Y., Verlage, E., Lewis, N. S., & Xiang, C.
- Affiliations
- California Institute of Technology (US)
- Corresponding author
- Lewis, Nathan S.
- Xiang, Chengxiang
- Venue
- Advanced Energy Materials
- Publisher
- Wiley
- Published
- 2016-04-29
- Volume
- 6
- Issue
- 13
- ISSN
- 1614-6832 (ISSN-L)
- 1614-6840
- OpenAlex
- W2343163627
- Cited by
- 139
- References
- 19
- Citations by year
- 2026: 1 · 2025: 9 · 2024: 10 · 2023: 23 · 2022: 13 · 2021: 21 · 2020: 14 · 2019: 13 · 2018: 10 · 2017: 18 · 2016: 7
- FWCI
- 4.34
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Advanced Energy Materials (publishedVersion)
- CaltechAUTHORS (California Institute of Technology) (submittedVersion)
- OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
- Funders
- Gordon and Betty Moore Foundation (1225)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Iron oxide chemistry and applications
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › TiO2 Photocatalysis and Solar Cells
- Keywords
- solar water splitting, photoelectrochemical cells, bipolar membranes, hydrogen evolution reaction, earth-abundant electrocatalysts, pH gradient, product separation, solar-to-hydrogen efficiency, device stability
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