车用三效催化剂剖析 |
| |
引用本文: | 宋丽云,于杰,何洪,邱文革,张桂臻. 车用三效催化剂剖析[J]. 工业催化, 2016, 24(4): 76-80. DOI: 10.3969/j.issn.1008-1143.2016.04.015 |
| |
作者姓名: | 宋丽云 于杰 何洪 邱文革 张桂臻 |
| |
作者单位: | (1.区域大气复合污染防治北京市重点实验室, 绿色催化与分离北京市重点实验室,北京工业大学, 北京 100124; 2.北京电动车辆协同创新中心, 北京 100083) |
| |
基金项目: | 国家高技术研究发展计划(2015AA034603A)资助项目;北京市科技计划(Z141100003814017)资助项目 |
| |
摘 要: | 对两种国外公司车用三效催化剂进行全面剖析,采用XRF测定催化剂涂层中各组分含量,采用XRD、XPS、H_2-TPR和TEM对催化剂进行物化性能表征。结果表明,A公司的三效催化剂是将Pd和Rh贵金属分别负载到γ-Al_2O_3和Ce_(0.35)Zr_(0.65)O_2固溶体材料上,B公司的三效催化剂是将Pd和Rh贵金属负载到Ce_(0.35)Zr_(0.65)O_2和γ-Al_2O_3混合载体上。
|
关 键 词: | 催化剂工程 三效催化剂 贵金属 载体材料 |
Analysis of vehicle three-way catalysts |
| |
Affiliation: | (1.Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing 100124, China; 2.Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing 100083, China) |
| |
Abstract: | Two kinds of commercial vehicle three-way catalysts(TWC) of foreign companies were analyzed.The coating compositions of the catalysts were determined by X-ray fluorescence.And their physicochemical properties were characterized by X-ray diffraction,transmission electron microscope,X-ray photoelectron spectroscope,H2 temperature programmed reduction methods.The results showed that Pd and Rh metal of the three-way catalysts manufactured by Company A were loaded onγ-Al2O3 andCe0.35Zr0.65O2carrier materials, respectively,while Pd and Rh components of the three-way catalyst produced by Company B were supported on the mixing carrier ofCe0.35Zr0.65O2 andγ-Al2O3. |
| |
Keywords: | catalyst engineering three-way catalyst noble metal carrier materials |
本文献已被 CNKI 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 |
|