Platinum Supported on a Hybrid of Nickel and Tungsten Carbide on New‐Diamond Electrocatalyst for Methanol Oxidation and Oxygen Reduction Reactions | Zendy

Wang Yanhui | Zendy; Su Jing | Zendy; Dong Liang | Zendy; Zhao Pengjuan | Zendy; Zhang Yan | Zendy; Wang Weiping | Zendy; Jia Shaopei | Zendy; Zang Jianbing | Zendy

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Platinum Supported on a Hybrid of Nickel and Tungsten Carbide on New‐Diamond Electrocatalyst for Methanol Oxidation and Oxygen Reduction Reactions

Author(s) -

Wang Yanhui,

Su Jing,

Dong Liang,

Zhao Pengjuan,

Zhang Yan,

Wang Weiping,

Jia Shaopei,

Zang Jianbing

Publication year - 2017

Publication title -

chemcatchem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.497

H-Index - 106

eISSN - 1867-3899

pISSN - 1867-3880

DOI - 10.1002/cctc.201700866

Subject(s) - electrocatalyst , tungsten carbide , materials science , nickel , carbon black , methanol , catalysis , platinum , inorganic chemistry , carbide , tungsten , diamond , amorphous solid , carbon fibers , chemical engineering , electrochemistry , chemistry , metallurgy , composite number , electrode , composite material , crystallography , organic chemistry , natural rubber , engineering

A hybrid of nickel and tungsten carbide on new‐diamond (Ni‐WC/nD) was synthesized by a microwave‐assisted method, in which nickel(tungsten) hydroxide was deposited on carbon black and then reduced carbothermally under N 2 atmosphere. Pt nanoparticles (NPs) were deposited on the hybrid to form the Pt/Ni‐WC/nD electrocatalyst. XRD and TEM were used to investigate the structure and morphology of Pt/Ni‐WC/nD, respectively. The results revealed that Ni and WC particles formed on carbon black during the reduction of nickel(tungsten) hydroxide at 1300 °C under N 2 , and the amorphous carbon was translated to new‐diamond as a result of the catalysis of Ni. The Pt NPs deposited on Ni‐WC/nD exhibited a good affinity with the support. We demonstrated that Pt/Ni‐WC/nD was an active electrocatalyst for the methanol oxidation reaction (MOR) and the oxygen reduction reaction (ORR). Pt/Ni‐WC/nD exhibited a better electrocatalytic activity and durability than Pt/C electrocatalyst for the MOR and ORR. This can be attributed to the strong interaction between the Ni‐WC/nD support and Pt and the excellent stability of the new‐diamond.

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