文档介绍：2011 Chinese Journal of Catalysis Vol. 32 No. 1
文章编号: 0253-9837(2011)01-0111-07 DOI: . 研究论文: 111~117
炭包覆氧化铝负载镍催化剂的制备和表征及其催化加氢性能
李海涛, 陈昊然, 张因, 高春光, 赵永祥
山西大学化学化工学院精细化学品教育部工程研究中心, 山西太原 030006
摘要:以炭包覆 Al2O3 (CCA) 为载体, 采用等体积浸渍法制备了 17%A 催化剂, 采用热重-差示量热扫描、扫描电镜、X 射
线光电子能谱、N2 物理吸附、H2 程序升温还原和 X 射线衍射等手段对样品进行了表征, 并用于粗 1,4-丁二醇加氢反应中. 结果
表明, 炭的引入显著改变了 Al2O3 的表面性质、负载 Ni 的存在形态以及金属-载体间的相互作用, 因而不同炭含量的 A 催化
剂在粗 1,4-丁二醇加氢反应中表现出不同的催化活性. 当载体中炭含量为 % 时, 催化剂中的 Ni 以无定形状态高度分散于载
体表面, 同时具有适宜的金属-载体相互作用及较好的还原性能, 因而其加氢活性最高.
关键词:镍; 炭包覆氧化铝; 负载型催化剂; 1,4-丁二醇; 加氢
中图分类号:O643 文献标识码:A
Preparation and Characterization of Carbon-Covered Alumina Supported Ni
Catalyst and Its Catalytic Performance for Hydrogenation
LI Haitao, CHEN Haoran, ZHANG Yin, GAO Chunguang, ZHAO Yongxiang*
Engineering Research Center of Ministry of Education for Fine Chemicals, School of Chemistry and Chemical Engineering,
Shanxi University, Taiyuan 030006, Shanxi, China
Abstract: Carbon-covered alumina (CCA) was prepared by pyrolysis of sucrose dispersed on a γ-Al2O3 support, and 17% A catalyst
was prepared by impregnation A. Effect of carbon addition on the catalytic performance of Ni/Al2O3 was investigated for the hydro-
genation of crude 1,4-butanediol aqueous solution. The catalyst samples were characterized by thermogravimetry-differential scanning calo-
rimet