Synthesis of Bimetallic PtCu Core–Shell Structured Catalyst and Its Catalytic Activity Toward Hydrogen Evolution Reaction
Synthesis of Bimetallic PtCu Core–Shell Structured Catalyst and Its Catalytic Activity Toward Hydrogen Evolution Reaction
复制标题
双金属PtCu核壳结构催化剂的合成及其析氢反应催化活性
DOI：
10.1166/jnn.2017.13028
复制
发表时间：
2017-03
影响因子：
--
通讯作者：
Zhijing Zhao
中科院分区：
文献类型：
--
作者：
Xinyu Hao;Sha Yi;Yumeng Zhao;Zhijing Zhao
The PtCu core–shell catalyst was prepared by ion beam sputtering process (IBS) using graphite fibre cloth as the supporting material. Physical and electrochemical techniques were applied to investigate the structure and performance of the thin film catalyst. X-ray Diffraction (XRD), AFM (atomic force microscope) and high resolution field emission scanning transmission electron microscopy (HRTEM) examinations showed that the surface phases of the thin film catalyst were Pt–Pt1Cu1 mixed phases, the catalyst had a complex morphology structure and the single-layer nanoparticles formed the PtCu@Pt/C core–shell structure. Cyclic voltammetry (CV) and linear sweep voltammetry (LSV) tests confirmed the higher performance of the PtCu catalyst with the post-process modification of 4 h, making the Pt loading was decreased by 20.29% compared with the pure Pt/C catalyst, while the exchange current density (i 0) is improved by 20.58% and 8.13% compared with the original sample and pure Pt/C catalyst, respectively.
