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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

Sun, Ke and Liu, Rui and Chen, Yikai and Verlage, Erik and Lewis, Nathan S. and Xiang, Chengxiang (2016) 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. Advanced Energy Materials, 6 (13). Art. No. 1600379. ISSN 1614-6832. https://resolver.caltech.edu/CaltechAUTHORS:20160502-135457387

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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 cm^2) photoactive area in relation to most previous reports.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1002/aenm.201600379DOIArticle
http://onlinelibrary.wiley.com/doi/10.1002/aenm.201600379/abstractPublisherArticle
ORCID:
AuthorORCID
Sun, Ke0000-0001-8209-364X
Lewis, Nathan S.0000-0001-5245-0538
Xiang, Chengxiang0000-0002-1698-6754
Additional Information:© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Received: February 21, 2016; Revised: March 19, 2016; Published online: First published: 29 April 2016. The authors declare no competing financial interests. This material is based upon work performed by the Joint Center for Artificial Photosynthesis, a DOE Energy Innovation Hub, supported through the Office of Science of the US Department of Energy under Award Number DE-SC0004993, as well as grant number 1225 from the Gordon and Betty Moore Foundation. The authors also thank N. Dalleska (Caltech) for his assistance with measurements and analysis of the ICPMS data. The authors also thank S. Lu, K. Walczak for gas-crossover measurements, R.J.R. Jones for designing the flow-cell reactor, X. Zhou for preparation of the ALD TiO_2 coatings, and J. C. Crompton for preparation of the CoP-coated metal meshes.
Group:JCAP
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0004993
Gordon and Betty Moore Foundation1225
Issue or Number:13
Record Number:CaltechAUTHORS:20160502-135457387
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160502-135457387
Official Citation:Sun K., Liu R., Chen Y., Verlage E., Lewis N. S., Xiang C. (2016). 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. Adv. Energy Mater., 6: . doi: 10.1002/aenm.201600379
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:66588
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:02 May 2016 21:07
Last Modified:09 Mar 2020 13:19

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