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Multi-component Fe–Ni hydroxide nanocatalyst for oxygen evolution and methanol oxidation reactions under alkaline conditions [electronic resource].

Published:
Gaithersburg, Md. : National Institute of Standards and Technology (U.S.), 2016.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description:
pages 365-379 : digital, PDF file
Additional Creators:
Argonne National Laboratory, National Institute of Standards and Technology (U.S.), National Science Foundation (U.S.), United States. Department of Energy. Office of Basic Energy Sciences, United States. Office of the United States Secretary of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
Here, iron-incorporated nickel-based materials show promise as catalysts for the oxygen evolution reac-tion (OER) half-reaction of water electrolysis. Nickel has also exhibited high catalytic activity for methanol oxidation, particularly when in the form of a bimetallic catalyst. In this work, bimetallic iron-nickel nanoparticles were synthesized using a multi-step procedure in water under ambient conditions. When compared to monometallic iron and nickel nanoparticles, Fe-Ni nanoparticles show enhanced catalytic activity for both OER and methanol oxidation under alkaline conditions. At 1 mA/cm2, the overpotential for monometallic iron and nickel nanoparticles was 421 mV and 476 mV, respectively, while the bimetallic Fe-Ni nanoparticles had a greatly reduced overpotential of 256 mV. At 10 mA/cm2, bimetallic Fe-Ni nanoparticles had an overpotential of 311 mV. Spec-troscopy characterization suggests that the primary phase of nickel in Fe-Ni nanoparticles is the more disordered alpha phase of nickel hydroxide.
Report Numbers:
E 1.99:1363813
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Note:
Published through SciTech Connect.
11/29/2016.
"134550"
ACS Catalysis 7 1 ISSN 2155-5435 AM
Stephanie L. Candelaria; Nicholas M. Bedford; Taylor J. Woehl; Nikki S. Rentz; Allison R. Showalter; Svitlana Pylypenko; Bruce A. Bunker; Sungsik Lee; Benjamin Reinhart; Yang Ren; S. Piril Ertem; E. Bryan Coughlin; Nicholas A. Sather; James L. Horan; Andrew M. Herring; Lauren F. Greenlee.
Funding Information:
AC02-06CH11357
View MARC record | catkey: 24045508