Journal
SYNTHETIC METALS
Volume 221, Issue -, Pages 55-60Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2016.10.011
Keywords
Codoped 3D graphene; Manganese sulfide; Electrocatalyst; Oxygen reduction reaction
Funding
- Natural Science Foundation of Jiangsu Province [BK20161191]
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center [ACGM2016-06-27]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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Sulfur and nitrogen codoped three-dimensional graphene-MnS (MnS/S,N-3DG) hybrids are facilely synthesized via a hydrothermal method followed by freeze-drying and pyrolysis treatment. The obtained MnS/S,N-3DG as an electrocatalyst for oxygen reduction reaction (ORR) shows excellent electrocatalytic performance. The codoped S and N as well as the introduced MnS significantly promote the electrocatalytic activity of graphene and efficiently catalyze the ORR process through a mixture of two electron transfer pathway and four-electron transfer pathway (electron transfer number equals to 3.8 or 3.9), which is even better than the commercial Pt (5%)/C catalyst. Moreover, the developed MnS/S,N-3DG electrocatalyst possesses excellent long-term stability and methanol tolerance, and could be a promising cathode electrocatalyst in future energy conversion and storage systems. (C) 2016 Elsevier B.V. All rights reserved.
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