化工进展Issue(1):92-98,164,8.DOI:10.3969/j.issn.1000-6613.2014.01.016
镍/氧化铝型催化剂表面结构的研究进展
Research progress in the surface structure of Ni/Al2O3 catalysts
摘要
Abstract
Ni/Al2O3,as a type of stable catalyst,is used extensively in industrial catalysis,such as catalytic hydrogenation and catalytic reformation. In these catalytic processes,the surface structure often plays a vitally important role for catalytic performance. In this paper,the surface structure of Ni/Al2O3 catalyst and its corresponding preparation technologies in the recent years are expatiated. A review is provided for the type of surface Ni species,the modification of additives for the Ni/Al2O3 catalysts’ surface structure,and the effects of the size and the structure of the surface Ni species on the catalytic performance. Moreover, the effects of preparation conditions on the type of surface Ni species,the structure of additives,and the size and structure of active components are also summarized. The important roles of the three surface Ni species,electronic and structural promoter,dispersion and crystalline phases of the particles in the catalytic process are analyzed. The future research on catalyst shall be focused on the increase of monatomic activity,the decrease of transfer resistance and catalyst electronic modification.关键词
镍活性物种/表面结构/催化材料/助剂修饰/分散度Key words
Ni active species/surface structure/catalytic material/modification of additive/dispersion分类
化学化工引用本文复制引用
杨仁春,吴俊升,田然,李晓刚,张志华,王海路..镍/氧化铝型催化剂表面结构的研究进展[J].化工进展,2014,(1):92-98,164,8.基金项目
国家自然科学基金(51202003)、中国石油天然气股份有限公司科学研究与技术开发项目(2011B-2606)及安徽省高校自然科学基金重点项目(KJ2012A036)。 ()