物理化学学报2011，Vol.27Issue(4)：946-952,7.
金在氨基硅烷修饰SBA-15上的巴豆醛选择加氢性能
Gold Supported on Aminosilane-Functionalized SBA-15 for Chemoselective Hydrogenation of Crotonaldehyde
摘要
Abstract
Three kinds ofaminosilane (APTS: 3-aminopropyltrimethoxysilane, TPED: N-[3-(trimethoxysilyl)-propylethylene]diamine, TPDT: trimethoxysilyl propyl diethylenetriamine) functionalized mesoporous SBA-15 molecular sieves (denoted APTS-SBA-15, TPED-SBA-15 and TPDT-SBA-15) were synthesized by post-grafting. Using the static interaction between the amino group and chloroauric acid followed by chemical reduction, the gold nanoparticles were immobilized into the channels of SBA-15. The Au/aminosilane-SBA-15 catalysts were systematically characterized by N2 physisorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The liquid phase hydrogenation of crotonaldehyde to crotyl alcohol (CROL) was used to investigate the effect of aminosilanes on the catalytic performance of the Au/amine-SBA-15 catalysts. The results revealed that the electron-donating ability of the aminosilane determines the selectivity towards the hydrogenation of the C= O bond on the gold catalyst. A stronger aminosilane electron-donating ability results in higher electron density on the gold active sites, which leads to the higher selectivity and yield of CROL.关键词
Au/SBA-15/氨基硅烷/巴豆醛/选择加氢/巴豆醇Key words
Au/ SBA-15/ Aminosilane/ Crotonaldehyde/ Selective hydrogenation/ Crotylalcohol分类
化学化工引用本文复制引用
田莉,周功兵,李振华,裴燕,乔明华,范康年..金在氨基硅烷修饰SBA-15上的巴豆醛选择加氢性能[J].物理化学学报,2011,27(4):946-952,7.基金项目
国家自然科学基金(21073043,20803011),教育部新世纪优秀人才支持计划(NCET-08-0126),上海市科委科技基金(10JC1401800,08DZ2270500)和石油化工催化材料与反应工程国家重点实验室(RIPP,SINOPEC)开放基金课题资助项目 （21073043,20803011）
