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Fe 2 O 3 ‐Modified Hydrogen Storage Alloys as Electrocatalyst for Borohydride Oxidation
Author(s) -
Wang Guiling,
Zhang Weicai,
Cao Dianxue,
Liu Jincheng,
Wang Xunying,
Wang Sen,
Sun Kening
Publication year - 2009
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200990362
Subject(s) - chemistry , hydrogen storage , borohydride , linear sweep voltammetry , alloy , cyclic voltammetry , electrochemistry , electrocatalyst , inorganic chemistry , hydrogen , electrode , nuclear chemistry , catalysis , organic chemistry
The effects of hot alkaline treatment and Fe 2 O 3 modification of hydrogen storage alloy on the electrocatalytic activity for oxidation of borohydride have been investigated using linear sweep voltammetry. The performance of borohydride electrochemical oxidation was significantly influenced by the hot alkaline treatment and Fe 2 O 3 modification of the hydrogen storage alloy. The results showed that the current density of the Fe 2 O 3 ‐modified hot alkaline‐treated hydrogen storage alloy electrode containing 5 wt% Fe 2 O 3 reached 125 mA·cm −2 in 0.10 mol·L −1 NaBH 4 and 2 mol·L −1 NaOH solution at −0.55 V vs. saturated Ag/AgCl, KCl electrode.