Tuning the Accessibility and Activity of Au25 (SR)18 Nanocluster Catalysts through Ligand Engineering.
Tuning the Accessibility and Activity of Au25 (SR)18 Nanocluster Catalysts through Ligand Engineering.
复制标题
DOI：
10.1002/chem.201603247
复制
发表时间：
2016-10
期刊：
影响因子：
--
通讯作者：
Jingguo Li;R. Nasaruddin;Yanqi Feng;Jun Yang;N. Yan;Jianping Xie
中科院分区：
文献类型：
--
作者：
Jingguo Li;R. Nasaruddin;Yanqi Feng;Jun Yang;N. Yan;Jianping Xie
In this work, the effects of thiolate ligands (-SR, e.g., chain length and functional moiety) on the accessibility and catalytic activity of thiolate-protected gold nanoclusters (e.g., Au25 (SR)18 ) for 4-nitrophenol hydrogenation is reported. The data suggest that Au25 (SR)18 bearing a shorter alkyl chain shows a better accessibility to the substrates (shown by shorter induction time, t0 ) and a higher catalytic activity (shown by higher apparent reaction rate constant, kapp ). The functional moiety of the ligands is another determinant factor, which clearly suggests that ligand engineering of Au25 (SR)18 would be an efficient platform for fine-tuning its catalytic properties.
