Abstract
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. An appropriately designed nitridation thus facilitates new directions for developing active and durable non-precious-metal oxynitride electocatalysts.
| Original language | English |
|---|---|
| Pages (from-to) | 68-73 |
| Number of pages | 6 |
| Journal | ChemSusChem |
| Volume | 10 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 10 2017 |
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Keywords
- nitriding
- oxygen evolution
- oxygen reduction
- oxynitride
- spinel
ASJC Scopus subject areas
- Environmental Chemistry
- Chemical Engineering(all)
- Materials Science(all)
- Energy(all)
Cite this
Enhancing Electrocatalytic Performance of Bifunctional Cobalt–Manganese-Oxynitride Nanocatalysts on Graphene. / Li, Yang; Kuttiyiel, Kurian A.; Wu, Lijun; Zhu, Yimei; Fujita, Etsuko; Adzic, Radoslav R.; Sasaki, Kotaro.
In: ChemSusChem, Vol. 10, No. 1, 10.01.2017, p. 68-73.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Enhancing Electrocatalytic Performance of Bifunctional Cobalt–Manganese-Oxynitride Nanocatalysts on Graphene
AU - Li, Yang
AU - Kuttiyiel, Kurian A.
AU - Wu, Lijun
AU - Zhu, Yimei
AU - Fujita, Etsuko
AU - Adzic, Radoslav R.
AU - Sasaki, Kotaro
PY - 2017/1/10
Y1 - 2017/1/10
N2 - 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. An appropriately designed nitridation thus facilitates new directions for developing active and durable non-precious-metal oxynitride electocatalysts.
AB - 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. An appropriately designed nitridation thus facilitates new directions for developing active and durable non-precious-metal oxynitride electocatalysts.
KW - nitriding
KW - oxygen evolution
KW - oxygen reduction
KW - oxynitride
KW - spinel
UR - http://www.scopus.com/inward/record.url?scp=85006345737&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85006345737&partnerID=8YFLogxK
U2 - 10.1002/cssc.201601188
DO - 10.1002/cssc.201601188
M3 - Article
C2 - 27873467
AN - SCOPUS:85006345737
VL - 10
SP - 68
EP - 73
JO - ChemSusChem
JF - ChemSusChem
SN - 1864-5631
IS - 1
ER -