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Title: Discovery of New Oxygen Evolution Reaction Electrocatalysts by Combinatorial Investigation of the Ni-La-Co-Ce Oxide Composition Space

We report a new family of earth abundant electrocatalysts for the oxygen evolution reaction (OER) discovered via high throughput screening of 1771 discrete metal oxide compositions covering the nickel-lanthanum-cobalt-cerium composition space. The catalytic performance of each of these compositions was measured under conditions applicable to distributed solar fuels generation using a three-electrode scanning drop electrochemical cell. These high throughput measurements show enhanced activity for catalyst compositions containing 20-65 metal atom % Ce. The catalytic activity and stability of a representative highly active composition (Ni 0.1La 0.1Co 0.3Ce 0.5)O x was verified by standard rotating disc electrochemistry. Catalysts of this composition showed stable operational performance at 10 mA cm -2 for 2 h and survived a 100 h endurance test in a testbed electrolyzer.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [1]
  1. California Inst. of Technology (CalTech), Pasadena, CA (United States). Joint Center for Artificial Photosynthesis (JCAP)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Joint Center for Artificial Photosynthesis (JCAP) and Engineering Division
Publication Date:
Grant/Contract Number:
SC0004993
Type:
Accepted Manuscript
Journal Name:
ChemElectroChem
Additional Journal Information:
Journal Volume: 1; Journal Issue: 10; Journal ID: ISSN 2196-0216
Publisher:
ChemPubSoc Europe
Research Org:
California Inst. of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Contributing Orgs:
US Army Research Laboratory (USARL)
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; combinatorial chemistry; electrochemistry; heterogeneous catalysis; oxygen evolution reaction; solar fuels
OSTI Identifier:
1468650
Alternate Identifier(s):
OSTI ID: 1471245

Haber, Joel A., Guevarra, Dan, Jung, Suho, Jin, Jian, and Gregoire, John M.. Discovery of New Oxygen Evolution Reaction Electrocatalysts by Combinatorial Investigation of the Ni-La-Co-Ce Oxide Composition Space. United States: N. p., Web. doi:10.1002/celc.201402149.
Haber, Joel A., Guevarra, Dan, Jung, Suho, Jin, Jian, & Gregoire, John M.. Discovery of New Oxygen Evolution Reaction Electrocatalysts by Combinatorial Investigation of the Ni-La-Co-Ce Oxide Composition Space. United States. doi:10.1002/celc.201402149.
Haber, Joel A., Guevarra, Dan, Jung, Suho, Jin, Jian, and Gregoire, John M.. 2014. "Discovery of New Oxygen Evolution Reaction Electrocatalysts by Combinatorial Investigation of the Ni-La-Co-Ce Oxide Composition Space". United States. doi:10.1002/celc.201402149. https://www.osti.gov/servlets/purl/1468650.
@article{osti_1468650,
title = {Discovery of New Oxygen Evolution Reaction Electrocatalysts by Combinatorial Investigation of the Ni-La-Co-Ce Oxide Composition Space},
author = {Haber, Joel A. and Guevarra, Dan and Jung, Suho and Jin, Jian and Gregoire, John M.},
abstractNote = {We report a new family of earth abundant electrocatalysts for the oxygen evolution reaction (OER) discovered via high throughput screening of 1771 discrete metal oxide compositions covering the nickel-lanthanum-cobalt-cerium composition space. The catalytic performance of each of these compositions was measured under conditions applicable to distributed solar fuels generation using a three-electrode scanning drop electrochemical cell. These high throughput measurements show enhanced activity for catalyst compositions containing 20-65 metal atom % Ce. The catalytic activity and stability of a representative highly active composition (Ni0.1La0.1Co0.3Ce0.5)Ox was verified by standard rotating disc electrochemistry. Catalysts of this composition showed stable operational performance at 10 mA cm-2 for 2 h and survived a 100 h endurance test in a testbed electrolyzer.},
doi = {10.1002/celc.201402149},
journal = {ChemElectroChem},
number = 10,
volume = 1,
place = {United States},
year = {2014},
month = {7}
}