沸石
催化作用
糠醛
润湿
化学
化学工程
有机化学
材料科学
复合材料
工程类
作者
Chengtao Wang,Zhiqiang Liu,Liang Wang,Xue Duan,Jian Zhang,Guoxiong Wang,Shichao Han,Xiangju Meng,Anmin Zheng,Feng-Shou Xiao
标识
DOI:10.1021/acscatal.7b03443
摘要
The metal-catalyzed selective hydrogenation of biomass-derived molecules is in great demand but is challenging due to the complex reaction pathways. Herein, we report a persuasive example for achieving selective hydrogenation of furfural over Pd catalysts by controllable sorption of molecules in zeolite micropores. The key to this success is fixation of Pd nanoparticles inside of silicalite-1 zeolite with controllable wettability (Pd@S-1-OH) by functionalizing silanol groups into the zeolite framework. In the hydrogenation of furfural as a model reaction, the Pd@S-1-OH catalyst with appropriate hydrophilicity exhibits extraordinary selectivity for the formation of furan, giving furan selectivity as high as >99.9% with a complete conversion of furfural, outperforming the conventional Pd nanoparticles supported on zeolite crystals (Pd/S-1) and S-1 zeolite fixed Pd catalysts without an artificially functionalized silanol group (Pd@S-1). The extraordinary performance of Pd@S-1-OH is reasonably attributed to t...
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