塔菲尔方程
纳米片
过电位
电催化剂
材料科学
制氢
分解水
铂金
纳米颗粒
化学工程
电解水
氧化物
纳米技术
锌
电解
催化作用
电化学
化学
光催化
电极
电解质
冶金
生物化学
物理化学
工程类
作者
Qian Long,Huiting Hu,Yunhua Zheng,Yao Zhu,Yutang Dai,Tao Zhang,Dongya Yang,Fengxian Qiu
出处
期刊:ACS applied nano materials
[American Chemical Society]
日期:2023-11-01
卷期号:6 (21): 19818-19826
被引量:2
标识
DOI:10.1021/acsanm.3c03629
摘要
The generation of hydrogen by the process of water splitting is a promising technological advancement, and the most effective solution to overcome the sluggish kinetics in the electrolysis process is the development of powerful electrocatalysts. Herein, platinum nanoparticle-doped zinc oxide (ZnO) nanosheet arrays supported on a carbon fiber paper surface (Pt@ZnO/CFP) were synthesized through hydrothermal and pyrolysis processes and further used as an efficient electrocatalyst for the hydrogen evolution reaction (HER) in acid media. The structural integration of ZnO nanosheets and Pt nanoparticles exposed a large number of active sites and optimized the electronic structure; in addition, the synergistic effect between the components comprehensively enhanced the HER performance. The resulting Pt@ZnO/CFP requires a competitive overpotential of 74 mV at a current density of 10 mA cm–2 and achieves a small Tafel slope of 60 mV dec–1. Additionally, there is no significant fluctuation with the stability test in 0.5 M H2SO4. This work provides a strategy for the synthesis of efficient electrocatalysts with a low noble-metal loading for HER.
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