Hydrogen evolution reaction (HER) was investigated in alkaline solution on tri-metallic [email protected]/Pt(poly) electrode, prepared by spontaneous deposition of Rh on top of Pd/Pt(poly) electrode with intermediate Pd coverage of 35%. Characterization of tri-metallic catalyst was performed by electrochemical methods of cyclic voltammetry and CO stripping voltammetry, while its activity for HER was tested by linear sweep voltammetry in 0.1 M NaOH. [email protected]/Pt(poly) catalyst has shown superior catalytic activity for HER with respect to initial Pt(poly) and both corresponding bimetallic Pd/Pt(poly) and Rh/Pt(poly) electrodes. This was explained by a strong synergistic electronic interaction between three metals in close contact induced at a number of different active sites across the surface of tri-metallic catalyst, which results with lowering of the binding energy for the adsorption of H intermediate species.

研究了在碱性溶液中三价[受电子邮件保护] / Pt（poly）电极上的析氢反应（HER），该过程通过将Rh自发沉积在Pd / Pt（poly）电极的顶部而实现，中间Pd覆盖率为35％。通过循环伏安法和CO汽提伏安法的电化学方法对三金属催化剂进行了表征，而在0.1 M NaOH中通过线性扫描伏安法测试了其对HER的活性。[受电子邮件保护] / Pt（poly）催化剂相对于初始Pt（poly）以及相应的双金属Pd / Pt（poly）和Rh / Pt（poly）电极均显示出对HER优异的催化活性。可以通过在三金属催化剂表面上许多不同的活性位点处紧密接触引起的三种金属之间的强协同电子相互作用来解释这一点，