| Au/LaCo_(1-x)Ce_xO_3催化剂的制备及其对CO催化氧化性能的研究 |
| |
| 引用本文： | 孟根图雅,杨金牌,贾美林. Au/LaCo_(1-x)Ce_xO_3催化剂的制备及其对CO催化氧化性能的研究[J]. 工业催化, 2015, 23(3): 204-207. DOI: 10.3969/j.issn.1008 1143.2015.03.007 |
| |
| 作者姓名： | 孟根图雅 杨金牌 贾美林 |
| |
| 作者单位： | 1.内蒙古化工职业学院化学工程系,内蒙古 呼和浩特 010070; 2.内蒙古医科大学第一附属医院,内蒙古 呼和浩特 010110; 3.内蒙古师范大学化学与环境科学学院,内蒙古 呼和浩特 010010 |
| |
| 摘 要： | 为进一步提高催化剂活性,用Ce对LaCoO3载体进行改性,并采用溶胶-凝胶法制备系列LaCo1-xCexO3(x=0~0.5)载体。其中,x=0.1和0.2时,载体为钙钛矿结构。采用沉积-沉淀法制备Au/LaCo1-xCexO3(x=0.1、0.2)催化剂,通过XRD、BET和H2-TPR等方法对催化剂进行催化活性评价及稳定性表征测试。结果表明,Au/LaCo0.9Ce0.1O3和Au/LaCo0.8Ce0.2O3催化剂能够在90℃将CO完全转化,在此温度进行的连续20h和30h的寿命实验中,CO转化率保持100%,催化活性和稳定性均优于Au/LaCoO3催化剂。表明掺杂Ce改性载体,能够提高催化剂活性和稳定性。
|
| 关 键 词： | 催化化学 Au/LaCo1-xCexO3催化剂 Ce改性 CO催化氧化 |
Preparation of Au/LaCo1-xCexO3 catalysts and their catalytic performance for CO oxidation |
| |
| Menggentuya,Yang Jinpai,Jia Meilin. Preparation of Au/LaCo1-xCexO3 catalysts and their catalytic performance for CO oxidation[J]. Industrial Catalysis, 2015, 23(3): 204-207. DOI: 10.3969/j.issn.1008 1143.2015.03.007 |
| |
| Authors: | Menggentuya Yang Jinpai Jia Meilin |
| |
| Affiliation: | 1.Department of Chemical Engineering，Inner Mongolia Vocational College of Chemical Engineering, Hohhot 010070, nner Mongolia, China; 2.The First Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia, China; 3.College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot 010010, Inner Mongolia, China |
| |
| Abstract: | In order to improve the catalytic performance of the catalysts,Ce was used to modify LaCoO3 support,and a series of LaCo1-xCexO3（x=0-0.5） supports was prepared by sol gel method.Among LaCo1-xCexO3 supports,the perovskite structure was obtained when x=0.1 and 0.2.Au/LaCo1-xCexO3（x=0.1 and 0.2） catalysts were prepared by deposition precipitation method and characterized by means of XRD,BET and H2-TPR.The catalytic performance of the catalysts for CO low temperature oxidation and their stability were investigated.The results showed that CO conversion of 100% over Au/LaCo0.9Ce0.1O3 and Au/LaCo0.8Ce0.2O3 catalysts could still be maintained during 20 h and 30 h consecutive reaction at reaction temperature 90 ℃.Au/LaCo0.9Ce0.1O3 and Au/LaCo0.8Ce0.2O3 catalysts exhibited higher catalytic activity and stability than Au/LaCoO3 catalyst,which indicated that the doping of Ce to modify the support with perovskite structure could enhanced the activity and stability of the catalyst. |
| |
| Keywords: | cata1ytic chemistry Au/LaCo1-x Cex O3 cata1yst cerium modificatioh CO cata1ytic oxidatioh |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《工业催化》浏览原始摘要信息 |
|
点击此处可从《工业催化》下载全文 |
|
