高校化学工程学报Issue(6)：1027-1031,5.DOI:10.3969/j.issn.1003-9015.2013.11.12.01
Cu-Zn-Al-MCM-41介孔分子筛的合成、表征及催化性能研究
Synthesis, Characterization and Catalytic Activity of Cu-Zn-Al-MCM-41 Mesoporous Molecular Sieves
摘要
Abstract
The catalysts of different copper content Cu-Zn-Al-MCM-41 mesoporous molecular sieves were synthesized by hydrothermal method with cetyltrimethylammonium bromide (CTAB) as template, sodium silicate as silicon source and copper nitrate, zinc sulfate, aluminium nitrate as metal source. The catalysts were characterized by XRD, TEM, FT-IR, UV-vis and BET, respectively, and their catalytic abilities were investigated by CO hydrogenation. The results show that the Cu-Zn-Al-MCM-41 mesoporous molecular sieves have uniform hexagonal mesoporous structure and uniform pore distribution with average pore diameter of about 2.5 nm. The metal ions are incorporated into the framework of MCM-41. With the increase of copper content the pore diameter of MCM-41 is increased while the surface area is decreased. The catalysts have hydrogenation and dehydration bifunctional catalytic ability. The hydrogenation of CO over the catalysts can yield 2-butanol with 2-propanol as the solvent and during the hydrogenation the catalytic activity of the catalyst is good. The conversion of CO is increased with increasing copper content of the catalyst. The conversion of CO is 89%under the condition of using the catalyst with nSi:nCu:nZn:nAl=40:4:1:1, reaction temperature=493 K and reaction time=4 h.关键词
Cu-Zn-Al-MCM-41/介孔分子筛/CO加氢/仲丁醇Key words
Cu-Zn-Al-MCM-41/mesoporous molecular sieve/CO hydrogenation/2-butanol分类
化学化工引用本文复制引用
杨蓓玉,顾剑江,赵峰,姚娟,菅盘铭..Cu-Zn-Al-MCM-41介孔分子筛的合成、表征及催化性能研究[J].高校化学工程学报,2013,(6):1027-1031,5.基金项目
江苏高校优势学科建设工程资助项目。 （）
