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论文类型：期刊论文

发表时间：2015-11-01

发表刊物：Energy & Environmental Science

收录刊物：EI、SCIE、Scopus

卷号：8

期号：11

页面范围：3204-3207

ISSN号：1754-5692

摘要：Formic acid (FA) dehydrogenation is an atom-economic method for H-2 production, while diluted FA with extra additives is generally required in heterogeneous dehydrogenation of FA. Here, we report a novel Schiff base functionalized gold catalyst, which showed excellent catalytic performances for H-2 production in catalytic dehydrogenation of high-concentration FA without any additives. The record turnover frequency (TOF) was as high as 4368 h(-1) in 10 M FA solutions, and was up to 2882 h(-1) even in 99% FA at a mild temperature of 50 degrees C. According to characterization results, a synergetic mechanism for C-H activation between the protonated Schiff base and electronegative gold nanoparticles (NPs) at the interface was suggested to be responsible for its unusual catalytic activity toward H-2 production from FA.