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Journal of Applied Electrochemistry

, Volume 49, Issue 4, pp 413–421 | Cite as

Amino acid-assisted preparation of reduced graphene oxide-supported PtCo bimetallic nanospheres for electrocatalytic oxidation of methanol

  • Wanyi Duan
  • Aoqi Li
  • Yujuan Chen
  • Jiahui Zhang
  • Kelei ZhuoEmail author
Research Article
  • 26 Downloads
Part of the following topical collections:
  1. Fuel cells

Abstract

In this work, we prepared reduced graphene oxide-supported PtCo nanospheres (PtCo/rGO) by a facile one-step hydrothermal method with the assistance of l-proline as the shape-directing agent. We systematically investigated the effects of various experimental conditions on the morphology and structure of the as-prepared PtCo/rGO hybrids. Compared with commercial Pt/C (10 wt%) and Pt/rGO catalysts, the as-prepared PtCo/rGO has better catalytic activity and poisoning resistance toward methanol electrooxidation and can be used as a promising catalyst for direct methanol fuel cells.

Graphical abstract

The rGO-supported PtCo nanosphere hybrids are successfully synthesized by a facile one-pot hydrothermal method with the assistance of l-proline. l-proline acts as shape-controlled agent for synthesizing PtCo/rGO. The as-prepared PtCo/rGO hybrids exhibit a higher electrocatalytic activity and poisoning-resistant ability for methanol oxidation in acidic media.

Keywords

l-proline Graphene Methanol Nanospheres Platinum–cobalt bimetallic alloy Electrooxidation 

Notes

Acknowledgements

Financial support from the National Natural Science Foundation of China (Grant nos. 21573058, 21303044, and 21173070) and the Program for Innovative Research Team in Science and Technology in University of Henan Province (Grant nos. 15IRTSTHN 003 and 17IRTSTHN 001) are gratefully acknowledged.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

10800_2019_1297_MOESM1_ESM.docx (5.3 mb)
Supplementary material 1 (DOCX 5474 KB)

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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical EngineeringHenan Normal UniversityXinxiangPeople’s Republic of China

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