摘要
ＣＯ的常温催化氧化由于在消除环境污染、空气净化、ＣＯ传感器、封闭式ＣＯ２激光器及密闭系统内消除ＣＯ等方面的实用价值［１］而颇受关注．已报道的ＣＯ催化氧化催化剂有Ｈｏｐｃａｌｉｔｅ［２］、复合氧化物［３］、贵金属［４，５］等，但这些催化剂都存在低温下活...
Various nanometer Co\-3O\-4 samples were prepared and the catalytic performance of CO oxidation were examined. It was found that the activities of the catalysts were greatly changed with variation of the preparation methods and pretreatment conditions. Among the samples tested, Co\-3O\-4 prepared by using dodecylbenzene sulfonic acid sodium salt(DBS) as the surfactant, calcined at 300 showed the highest activity and it was able to oxidize completely CO even at \{-78 \}. Characterization of these samples by XRD and BET means showed that the catalytic acitivity increased with the decrease of the average particle size, suggests that the average particle size of nanometer Co\-3O\-4 samples is the main controlling factor of the catalytic activity.\=
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第4期637-639,共3页
Chemical Journal of Chinese Universities
基金
长春应用化学科学研究中心资助
关键词
纳米
一氧化碳
氧化
催化剂
四氧化三钴
Nanometer Co\-3O\-4, Carbon monooxide, Catalytic oxidation
