One-pot synthesis of CuPt nanodendrites with enhanced activity towards methanol oxidation reaction

Hongcheng Peng; Weihong Qi; Haofei Wu; Jieting He; Yejun Li; Haipeng Xie

doi:10.1039/c8ra00391b

One-pot synthesis of CuPt nanodendrites with enhanced activity towards methanol oxidation reaction

RSC Adv. 2018 Mar 5;8(17):9293-9298. doi: 10.1039/c8ra00391b. eCollection 2018 Feb 28.

Authors

Hongcheng Peng¹, Weihong Qi^{1

2}, Haofei Wu¹, Jieting He¹, Yejun Li³, Haipeng Xie³

Affiliations

¹ School of Materials Science and Engineering, Central South University Changsha 410083 P. R. China.
² Key Laboratory of Non-ferrous Materials Science and Engineering, Ministry of Education Changsha 410083 P. R. China.
³ Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University Changsha Hunan 410083 China qiwh216@csu.edu.cn yejunli@csu.edu.cn.

Abstract

CuPt nanodendrites have special electrocatalytic performance due to their unique morphologies and structures. In this work, we report a facile and one-pot synthesis of highly branched and dispersed CuPt nanodendrites with a size of about 22 nm and Pt/Cu ratio of 2 : 1. X-ray photoelectron spectra indicate a Pt-rich surface of the prepared CuPt nanodendrites. The combination of a highly branched structure with a Pt-rich shell would be very beneficial for catalytic properties, which was confirmed by electrochemical tests towards MOR. A systematic study on morphology evolution of the products and understanding of their growth mechanism was carried out using the effects of reaction time and reducing agents.