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Multi-modal optimization of bismuth vanadate photoanodes via combinatorial alloying and hydrogen processing

Journal Article · · ChemComm
DOI:https://doi.org/10.1039/c8cc07156j· OSTI ID:1492037
 [1];  [2];  [3];  [2];  [2];  [4];  [2];  [2]
  1. California Inst. of Technology (CalTech), Pasadena, CA (United States). Joint Center for Artificial Photosynthesis; California Institute of Technology
  2. California Inst. of Technology (CalTech), Pasadena, CA (United States). Joint Center for Artificial Photosynthesis
  3. California Inst. of Technology (CalTech), Pasadena, CA (United States). Joint Center for Artificial Photosynthesis; Toyota Research Inst. of North America, Ann Arbor, MI (United States). Future Mobility Research Dept.
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Joint Center for Artificial Photosynthesis. Chemical Sciences Division
+ Show Author Affiliations

Alloying transition metals, such as Mo, into BiVO4 has emerged as the primary mechanism for improving carrier transport in this photoanode for solar fuels production. The present work establishes here the generality of improving photoelectrochemical performance through co-alloying with a transition metal electron donor and a structure-modulating rare earth. Further improvement for all such alloys is obtained by annealing the oxide materials in H2, ultimately producing photoanodes with above 3 mA cm-2 photocurrent density under AM 1.5G illumination, in the top tier of compact BiVO4 films.

Research Organization:
California Inst. of Technology (CalTech), Pasadena, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0004993
OSTI ID:
1492037
Alternate ID(s):
OSTI ID: 1542358
OSTI ID: 1486897
Journal Information:
ChemComm, Journal Name: ChemComm Journal Issue: 4 Vol. 55; ISSN 1359-7345
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

References (24)

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Development of solar fuels photoanodes through combinatorial integration of Ni–La–Co–Ce oxide catalysts on BiVO 4 journal January 2016
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Cited By (3)

Nature of Nitrogen Incorporation in BiVO 4 Photoanodes through Chemical and Physical Methods journal October 2019
Analyzing machine learning models to accelerate generation of fundamental materials insights journal March 2019
Tracking materials science data lineage to manage millions of materials experiments and analyses journal July 2019

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