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Title: Nanosegregated bimetallic oxide anode catalyst for proton exchange membrane electrolyzer

Abstract

A surface segregated bimetallic composition of the formula Ru.sub.1-xIr.sub.x wherein 0.1.ltoreq.x.ltoreq.0.75, wherein a surface of the material has an Ir concentration that is greater than an Ir concentration of the material as a whole is provided. The surface segregated material may be produced by a method including heating a bimetallic composition of the formula Ru.sub.1-xIr.sub.x, wherein 0.1.ltoreq.x.ltoreq.0.75, at a first temperature in a reducing environment, and heating the composition at a second temperature in an oxidizing environment. The surface segregated material may be utilized in electrochemical devices.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1303839
Patent Number(s):
9,421,521
Application Number:
14/502,825
Assignee:
UCHICAGO ARGONNE, LLC (Chicago, IL)
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Sep 30
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Danilovic, Nemanja, Kang, Yijin, Markovic, Nenad, Stamenkovic, Vojislav, Myers, Deborah J., and Subbaraman, Ram. Nanosegregated bimetallic oxide anode catalyst for proton exchange membrane electrolyzer. United States: N. p., 2016. Web.
Danilovic, Nemanja, Kang, Yijin, Markovic, Nenad, Stamenkovic, Vojislav, Myers, Deborah J., & Subbaraman, Ram. Nanosegregated bimetallic oxide anode catalyst for proton exchange membrane electrolyzer. United States.
Danilovic, Nemanja, Kang, Yijin, Markovic, Nenad, Stamenkovic, Vojislav, Myers, Deborah J., and Subbaraman, Ram. Tue . "Nanosegregated bimetallic oxide anode catalyst for proton exchange membrane electrolyzer". United States. https://www.osti.gov/servlets/purl/1303839.
@article{osti_1303839,
title = {Nanosegregated bimetallic oxide anode catalyst for proton exchange membrane electrolyzer},
author = {Danilovic, Nemanja and Kang, Yijin and Markovic, Nenad and Stamenkovic, Vojislav and Myers, Deborah J. and Subbaraman, Ram},
abstractNote = {A surface segregated bimetallic composition of the formula Ru.sub.1-xIr.sub.x wherein 0.1.ltoreq.x.ltoreq.0.75, wherein a surface of the material has an Ir concentration that is greater than an Ir concentration of the material as a whole is provided. The surface segregated material may be produced by a method including heating a bimetallic composition of the formula Ru.sub.1-xIr.sub.x, wherein 0.1.ltoreq.x.ltoreq.0.75, at a first temperature in a reducing environment, and heating the composition at a second temperature in an oxidizing environment. The surface segregated material may be utilized in electrochemical devices.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {8}
}

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