Electrocatalysis for proton reduction by a coated Nafion® membrane dispersing ruthenium moieties

被引：12

作者：

Abe, T

Goto, T

Ohzeki, K

Kaneko, M

机构：

[1] Hirosaki Univ, Dept Mat Sci & Technol, Hirosaki, Aomori 0368561, Japan

[2] Ibaraki Univ, Dept Chem, Mito, Ibaraki 3108512, Japan

[3] RIKEN, Wako, Saitama 3510198, Japan

来源：

ELECTROCHIMICA ACTA | 2000年 / 45卷 / 24期

关键词：

proton reduction; ruthenium-red; electrocatalysis; polymer-coated electrode; hydrogen evolution;

D O I：

10.1016/S0013-4686(00)00486-2

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrocatalytic proton reduction was studied using Ru-red ([(NH3)(5)Rn-III-O-Ru-IV(NH3)(4)-O-Ru-III(NH3)(5)]Cl-6) dispersed into a Nafion(R) membrane coated on a basal-plane pyrolytic graphite (BPG) electrode (denoted as BPG/Nf[Ru-red]) in a pH 1 electrolyte solution. It was found that the Nf[Ru-red] shows high activity in H+ reduction to produce H-2. The electrocatalytic reaction by Ru-red embedded in the polymer membrane started to take place by forming catalytically active species after irreversible change of the complex under cathodic conditions. Electrochemical features of the Ru-red in the membrane as well as electrocatalysis by the Nf[Ru-red] for H+ reduction were discussed based on the results of CV measurement, UV-Vis spectroscopy before and after the electrochemical process and potentiostatic electrolysis. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：4009 / 4014

页数：6

共 35 条

[1] Prussian White as a highly active molecular catalyst for proton reduction [J].