Journal
APPLIED SURFACE SCIENCE
Volume 427, Issue -, Pages 319-327Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2017.08.209
Keywords
Oxygen reduction reaction; Oxygen evolution reaction; Co-MOF; Nitrogen doped carbon
Categories
Funding
- Key Laboratory Open Research Foundation of Xinjiang Autonomous Region [2016D03008]
- National Natural Science Foundation of China [21661029, 21663029]
- Technological Innovation Youth Training Project of Xinjiang Autonomous Region [2013721017]
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The oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) play crucial roles in efficient energy conversion and storage solutions. Here, Co@Co3O4 nanoparticle embedded nitrogen-doped carbon architectures (denoted as Co@Co3O4/NCs) are prepared via a simple two-step and in situ approach by carbonization and subsequent oxidation of Co-MOF containing high contents of carbon and nitrogen. When evaluated as electrocatalyst towards both ORR and OER in a KOH electrolyte solution, the as-fabricated Co@Co3O4/NC-2 exhibits similar ORR catalytic activity to the commercial Pt/C catalyst, but superior stability and good methanol tolerance. Furthermore, the as-fabricated catalysts also show promising catalytic activity for OER. The effective catalytic activities originate from the synergistic effects between well wrapped Co@Co3O4 nanoparticles and nitrogen doped carbon structures. (C) 2017 Elsevier B.V. All rights reserved.
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