摘要
应用溶剂化金属原子浸渍（ＳＭＡＩ）法和普通浸渍（ＣＩ）法制备了金属含量相同的γＡｌ２Ｏ３负载ＮｉＡｇ双金属催化剂。研究了这些催化剂在甲苯和二丙酮醇加氢以及ＣＯ２甲醇化反应中的催化性质，结果表明与组成相同的普通浸渍法催化剂相比，在所有这些反应中ＳＭＡＩ催化剂都显示出较高的催化活性，这是因为ＳＭＡＩ催化剂具有较高的分散度和还原度（零价金属百分比）。
The Solvated Metal Atom Impregnation (SMAI) and Conventional Impregnation (CI) methods were used to prepare Ni Ag/γ Al 2O 3 bimetallic catalysts with the same content. The catalytic properties of these catalysts in hydrogenation of toluene and diacetone alcohol as well as CO 2 methanation were studied. The results showed that the SMAI catalysts exhibited much greater activities for all the reactions compared with the CI catalysts with the same composition. This is because the SMAI catalysts possess higher despersity and reaction degree (percentage of metal in zerovalent state).
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
1997年第2期220-223,共4页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金
关键词
双金属催化剂
氢化
甲醇化
镍
银
SMAI法
CI法
Ni Ag bimetallic catalyst\ \ \ solvated metal atom\ \ \ hydrogenaton\ \ CO 2 methanation
