摘要
CO的常温催化氧化过程在消除环境污染、空气净化、CO传感器、封闭式CO2激光器、防毒面具以及密闭系统内CO的消除等方面都具有较高的实用价值[1,2].目前已报道的CO催化氧化催化剂有Hopcalite[3](二氧化锰和氧化铜的混合物)、复合氧化物、贵...
The activities and durability of the oxidation of CO at ambient temperature and humidity on nanometer Au/NiO prepared by using different methods were studied. It was found that the activities and durability of the catalysts were greatly changed with the preparation methods and calcining temperature. Active and durable catalyst can be obtained by careful control of the preparation procedures. Among the samples tested, Au/NiO prepared by the following conditions——Na 2CO 3 solution was added into an aqueous solution of Ni(NO 3) 2, HAuCl 4 and dodecylbenzene sulfonic acid sodium salt (DBS), the resultant precipitate was heated to 70 ℃ and washed with deionized hot water of 70 ℃, followed by drying at room temperature for 48 h, and then the precipitate was calcined at 300 ℃——showed the highest activity and durability, it was even able to oxidize CO completely at 20 ℃ in the presence of 1.8% water vapor for 27 h.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1998年第8期1317-1319,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
一氧化碳
常温
常湿
催化
氧化
纳米金
催化剂
Carbon monooxide, Ambient temperature and humidity catalytic oxidation, Nanometer Au/NiO,