摘要
采用XRD，TPR，CO吸附in—situ IR，CO氧化反应等对CuO／y—Al2O3催化剂经CO处理前后的结构、组成和催化性能进行了研究。结果表明，经CO在250℃下处理1h后CuO／y—Al2O3，催化剂中出现了分散态Cu^＋物种，该物种的产生使催化剂的活性明显提高。
The dispersion of copper oxide species on y-Al2O3 before and after CO-pretreatment was characterized by XRD, H2-TPR and in-situ IR. The catalytic activities of the catalysts for CO oxidation were measured to investigate the influence of the CO-pretreatment on the catalytic properties of these catalysts. The results indicate that the catalysts pretreated by CO at 250 ℃ show a higher activity than the fresh catalysts due to the generation of surface Cu^＋ species, which enhances the activity of the catalysts.
作者
张丽萍
万海勤
朱捷
宋春燕
刘斌
李丹
董林
ZHANG Li-Ping,WAN Hai-Qin, ZHU Jie, SONG Chun-Yan, LIU Bin, LI Dan, DONG Lin （1.Department of Materials and Chemical Engineering, Sichuan Institute of Scienee and Technology, Zigong, Sichuan 643000; 2.Key Laboratory of Mesoscopic Chemistry of MOE, Department of Chemistry, Nanjing University, Nanjing 210093; 3.Chongqing University of Scienee and Technology, Chongqing 400042）
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
Chinese Journal of Inorganic Chemistry
