Materials and Structures Laboratory, Tokyo Institute of Technology, Midori-ku, Yokohama 226-8503, Japan.
Phys Chem Chem Phys. 2013 Jun 21;15(23):9343-50. doi: 10.1039/c3cp43853h. Epub 2013 May 10.
Microporous carbon catalysts with large surface areas (800-1100 m(2) g(-1)) and high densities of SO3H groups (ca. 1.1 mmol g(-1)) were synthesized by sulfonation of zeolite-templated microporous carbon. The resulting SO3H-bearing microporous carbon catalysts exhibited higher catalytic performance for the hydrolysis of cellobiose and the Beckmann rearrangement than conventional solid acid catalysts and non-porous amorphous carbon with SO3H groups. The high catalytic activity of these reusable heterogeneous catalysts can be attributed to the high surface area and microporous structure, which enhance the efficient incorporation and diffusion of reactant molecules from solution to the SO3H groups on the catalysts.
通过沸石模板的微孔碳的磺化作用合成了具有大表面积（800-1100 m(2) g(-1)) 和高密度 SO3H 基团（约 1.1 mmol g(-1)) 的微孔碳催化剂。与传统的固体酸催化剂和带有 SO3H 基团的非多孔无定形碳相比，所得到的带有 SO3H 的微孔碳催化剂在纤维素二糖的水解和贝克曼重排反应中表现出更高的催化性能。这些可重复使用的非均相催化剂具有高催化活性，这归因于高表面积和微孔结构，这增强了反应物分子从溶液中有效掺入和扩散到催化剂上的 SO3H 基团的过程。
