A Schiff base modified gold catalyst for green and efficient H 2 production from formic acid

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...

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Bibliographic Details
Published in:Energy & environmental science 2015, Vol.8 (11), p.3204-3207
Main Authors: Liu, Qinggang, Yang, Xiaofeng, Huang, Yanqiang, Xu, Shutao, Su, Xiong, Pan, Xiaoli, Xu, Jinming, Wang, Aiqin, Liang, Changhai, Wang, Xinkui, Zhang, Tao
Format: Article
Language:English
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Summary: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 °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.
ISSN:1754-5692
1754-5706
DOI:10.1039/C5EE02506K