期刊文献+

不同方法制备的纳米Au/NiO上CO常温常湿催化氧化性能的研究 被引量:22

Catalytic Oxidation of CO at Ambient Temperature and Humidity on Au/NiO Prepared by Using Different Methods
下载PDF
导出
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,
  • 引文网络
  • 相关文献

参考文献3

  • 1张文祥,Chem Res Chin Univ,1997年,13卷,4期,355页
  • 2Yuan Y,J Catal,1997年,170卷,191页
  • 3郝郑平,分子催化,1996年,10卷,233页

同被引文献182

引证文献22

二级引证文献167

;
使用帮助 返回顶部