CHENG Li-Hong1**, FENG Gang2**, SHI Liu2, QING Shao-Jun3, GAO Zhi-Xian4**
1. Department of Material Science and Engineering, Jiangxi Science and Technology Normal University, Nanchang 330038, China;
2. College of Chemistry, Nanchang University, Nanchang 330031, China;
3. Shanxi Institute of Coal Chemistry,Chinese Academy of Sciences, Taiyuan 030001, China;
4. Liaoning Shihua University, Fushun 113001, China
Abstract As the important content of physical chemistry, catalysis is of great practical significance. The life of catalyst is one of the main indicators of catalysts, which relates to the economy of an industrial process. Supported metal catalysts are often deactivated due to the aggregation of active metals in high reaction temperatures. Although the methods, e.g. use larger support surface area, increase metal loading and strengthening the bonding of metal with the support, can be used to prolong the catalysts life. Basically, these methods could not prevent the thermodynamics trend of catalysts metal growth and deactivation. Recently, we dispersed the active copper component uniformly into the alumina bulk phase to form spinel structure as sustained release catalyst, thereby effectively improved the stability of the catalyst. This may enrich the catalysis content of physical chemistry.
