Mnx(PO4)y/NPC As a High Performance Bifunctional Electrocatalyst for Oxygen Electrode Reactions
- Authors
- Wang, Shuai; Nam, Gyutae; Li, Ping; Jang, Haeseong; Wang, Jia; Kim, Min Gyu; Wu, Zexing; Liu, Xien; Cho, Jaephil
- Issue Date
- Feb-2019
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- oxygen reduction reaction; oxygen evolution reaction; zinc-air battery; phosphate; non-noble metal
- Citation
- CHEMCATCHEM, v.11, no.4, pp 1222 - 1227
- Pages
- 6
- Journal Title
- CHEMCATCHEM
- Volume
- 11
- Number
- 4
- Start Page
- 1222
- End Page
- 1227
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/69303
- DOI
- 10.1002/cctc.201801753
- ISSN
- 1867-3880
1867-3899
- Abstract
- Developing highly efficient and durable bifunctional electrocatalyst for oxygen reduction (ORR) and oxygen evolution reaction (OER) is quite important for developing rechargeable zinc-air batteries. Herein, one kind of manganese phosphate-based electrocatalyst (Mn-x(PO4)(y)/NPC) with high specific surface area (1106.9 m(2) g(-1)) is prepared via a facile and scalable avenue, which possesses remarkable catalytic performance for the both ORR and OER, indicated by a more positive half-wave potential of 0.87 V in 0.1 M KOH for the ORR as well as an overpotential of 0.37 V to achieve the current density of 10 mA cm(-2) in 1 M KOH for the OER. Furthermore, the Mn-x(PO4)(y)/NPC assembled rechargeable zinc-air battery shows an excellent charge-discharge cycling performance, revealed by the smaller sum of charge-discharge potentials, comparable to that of Pt/C+IrO2. This research adds a new kind of electrocatalyst into the family of non-noble metal-based bifunctional electrocatalyst for rechargeable zinc-air batteries.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.