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论文类型：期刊论文

发表时间：2016-09-07

发表刊物：CHEMCATCHEM

收录刊物：SCIE、EI、Scopus

卷号：8

期号：17

页面范围：2757-2760

ISSN号：1867-3880

关键字：catalyst films; cobalt; electrodeposition; oxidation; water splitting

摘要：A cobalt-based film (Co-Hi) for water oxidation was prepared in 2-[4-(2-hydroxyethyl) piperazin-1-yl]ethanesulfonic acid buffer at pH 7.0 through a unique cyclic voltammetry electrodeposition method by applying a wide scan range from 1.40 to -1.00 V versus normal hydrogen electrode (NHE). This catalyst film displayed highly efficient activity during oxygen evolution in neutral aqueous solution. An impressive current density of more than 1.5 mAcm(-2) that was stable over a prolonged time period was obtained with a remarkably low onset overpotential of 230 mV in 0.1 M phosphate buffer (pH 7.0).