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Corresponding Author

Yong CAI(cloudoo1@126.com);
Ming ZHANG(zhangming@hnu.edu.cn)

Abstract

Platinum-tungsten trioxide (Pt-WO3) nanosheets were synthesized on nickel foams (NFs) directly. As great conductive networks, NFs substrates could greatly improve the electrode performance of WO3. The modified platinum nanoparticles not only enhanced the electron transformation of catalysts, but also increased the active sites for hydrogen evolution reaction (HER). Pt-WO3/NF revealed a better catalytic activity than WO3/NFs with a smaller Tafel slope (80 mV·dec-1) and a lower overpotential of 72 mV at the current density of 10 mA·cm-2. In addition, Pt-WO3/NF showed great durability and stability during the long-term electrochemical test of 45 h. This work provides a facile strategy of improving transition metal oxides (TMOs) as high activity HER catalysts for promising practical applications.

Graphical Abstract

Keywords

tungsten oxide, hydrogen evolution reaction, nanosheets, platinum catalysts

Publication Date

2019-10-28

Online Available Date

2019-03-01

Revised Date

2018-12-18

Received Date

2018-11-12

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