The promoting role of minor amount of water in solvent-free hydrogenation of halogenated nitrobenzenes  

作　　者：Jing-Hui Lyu Xiao-Bo He Chun-Shan Lu Lei Ma Qun-Feng Zhang Feng Feng Xiao-Nian Li Jian-Guo Wang 

机构地区：[1]Institute of Industrial Catalysis,College of Chemical Engineering and Materials Science,Zhejiang University of Technology

出　　处：《Chinese Chemical Letters》2014年第2期205-208,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.20976164,21176221 and 21136001);National Basic Research Program of China(973 Program)(Nos. 2011CB710803,2013CB733500);Zhejiang Provincial Natural Science Foundation of China(No.LY12B03005)

摘　　要：This study shows that minor amount of water plays a very important role in solvent-free hydrogenation of halogenated nitrobenzenes. For dried sponge Pd, the reaction cannot occur in the absence of water. For Pd/C catalyst, minor amount of water reduces the induction time, increases the reaction rate and reaction TOFs. Water might enhance the diffusion, adsorption and dissociation of H2 on Pd catalysts.This study shows that minor amount of water plays a very important role in solvent-free hydrogenation of halogenated nitrobenzenes. For dried sponge Pd, the reaction cannot occur in the absence of water. For Pd/C catalyst, minor amount of water reduces the induction time, increases the reaction rate and reaction TOFs. Water might enhance the diffusion, adsorption and dissociation of H2 on Pd catalysts.

关 键 词：Halogenated nitrobenzenes Solvent Free WATER HYDROGENATION 

分 类 号：TQ203[化学工程—有机化工]