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Title: Enhancing Electrocatalytic Performance of Bifunctional Cobalt–Manganese-Oxynitride Nanocatalysts on Graphene

Journal Article · · ChemSusChem
 [1];  [2];  [3];  [3];  [2];  [2];  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Dept.; Stony Brook Univ., NY (United States). Chemistry Dept.
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Dept.
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Condensed Matter Physics and Materials Science

In this paper, we report the synthesis and characterization of graphenesupported cobalt–manganese-oxynitride nanocatalysts (CoMnON/G) as bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). A nitriding treatment of spinel compound CoMnO increased the ORR activity considerably, and the most active material catalyzed the ORR with only a 30 mV half-wave potential difference from the commercial carbon-supported platinum (Pt/C) in alkaline media. In addition to high activity, the catalyst also exhibited an intrinsic stability that outperformed Pt/C. Finally, an appropriately designed nitridation thus facilitates new directions for developing active and durable non-precious-metal oxynitride electocatalysts.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Contributing Organization:
Stony Brook Univ., NY (United States)
Grant/Contract Number:
SC0012704; FG02-05ER15688
OSTI ID:
1354693
Report Number(s):
BNL-113794-2017-JA; R&D Project: MA510MAEA; KC0302010
Journal Information:
ChemSusChem, Vol. 10, Issue 1; ISSN 1864-5631
Publisher:
ChemPubSoc EuropeCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 36 works
Citation information provided by
Web of Science

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Cited By (6)

A review of anion-regulated multi-anion transition metal compounds for oxygen evolution electrocatalysis journal January 2018
Hydrogen evolution activity tuning via two-dimensional electron accumulation at buried interfaces journal January 2019
Octahedral spinel electrocatalysts for alkaline fuel cells journal November 2019
NiFe Oxide Nanocatalysts Grown on Carbonized Algal Cells for Enhanced Oxygen Evolution Reaction journal January 2018
Synthesis of Fe, Co Incorporated in P-Doped Porous Carbon Using a Metal-Organic Framework (MOF) Precursor as Stable Catalysts for Oxygen Reduction Reaction journal January 2018
Noble-Metal-Free Iron Nitride/Nitrogen-Doped Graphene Composite for the Oxygen Reduction Reaction journal January 2019