文献类型：期刊文献

英文题名：Catalytic hydrogenation of aromatic nitro compounds by functionalized ionic liquids-stabilized nickel nanoparticles in aqueous phase: The influence of anions

作者：Hu Yu[2];Yu YinYin[2];Zhao XiuGe[2];Yang HanMing[1];Feng Bo[2];Li Huan[2];Qiao YunXiang[2];Hua Li[2];Pan ZhenYan[2];Hou ZhenShan[2]

机构：[1]S Cent Univ Nationalities, Key Lab Catalysis & Mat Sci, State Ethn Affairs Commiss, Minist Educ, Wuhan 430074, Peoples R China;[2]E China Univ Sci & Technol, Key Lab Adv Mat, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China

年份：2010

卷号：53

期号：7

起止页码：1541

外文期刊名：SCIENCE CHINA-CHEMISTRY

收录：;EI(收录号：20103313156019);WOS:【SCI-EXPANDED(收录号:WOS:000280481500015)】；

基金：This work was supported by the National Natural Science Foundation of China (20773037), East China University of Science and Technology (YJ0142136), and the Commission of Science and Technology of Shanghai Municipality (07PJ14023).

语种：英文

外文关键词：functionalized ionic liquid; nickel nanoparticles; aqueous phase; selective hydrogenation

摘要：Two kinds of nickel nanoparticles (NPs) well-dispersed in aqueous phase have been conveniently prepared by reducing nickel(II) salt with hydrazine in the presence of amino group (-NH2) functionalized ionic liquids: 1-(3-aminopropyl)-2,3-dimethylimidazolium bromide ([AMMIM][Br]) and 1-(3-aminopropyl)-2,3-dimethylimidazolium acetate ([AMMIM][AcO]). The Ni(0) particles are composed of smaller ones which assemble in a blackberry-like shape. The Ni nanoparticles stabilized with [AMMIM][AcO] are much larger than those stabilized with [AMMIM][Br], and the former unexpectedly give much higher activity in the selective hydrogenation of citral and nitrobenzene (NB) in aqueous phase. The Ni(0) nanocatalysts dispersed in aqueous phase are stable enough to be reused at least five times without significant loss of catalytic activity and selectivity during the catalytic recycles.