题目：

Optimizing The Hydrogen Evolution Reaction by Shrinking Pt Amount in Pt-Ag/SiNW Nanocomposites

作者：

Wen Shen, Bin Wu, Fan Liao**, Binbin Jiang, Mingwang Shao*

单位：

Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, PR China

摘要：

In recent years, platinum-based catalysts are the most promising candidates for hydrogen evolution reaction (HER). Decrease of the Pt usage is an effective way to obtain low-cost hydrogen production. In order to achieve this goal, we synthesized Pt-Ag/SiNW composites with different dosages of Pt, using inexpensive Ag as a co-catalyst and SiNWs as carriers, and tested their catalytic performance in HER. The results showed that the optimal composition of Pt: Ag: Si = 4.1: 21.5: 74.4 in mass ratio. With such a low amount of Pt, the Pt-Ag/SiNW catalyst exhibited exciting HER performance, whose turnover frequency is 6.3H₂Pt^-1s^-1at -0.2 V vs. RHE, 2.7 times as large as that of 40 wt % Pt/C. This design greatly increased the utilization ratio of Pt, which may open a new way for preparation of other Pt-based catalysts.

影响因子：

3.582

分区情况：

二区

链接：

http://www.sciencedirect.com/science/article/pii/S0360319917310558