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Pt/CeO2-ZrO2/Al2O3催化剂的光谱表征
引用本文:詹瑛瑛,郑起,魏可镁,肖益鸿,蔡国辉,陈天明,张汉辉.Pt/CeO2-ZrO2/Al2O3催化剂的光谱表征[J].光谱学与光谱分析,2000,20(5):709-711.
作者姓名:詹瑛瑛  郑起  魏可镁  肖益鸿  蔡国辉  陈天明  张汉辉
作者单位:福州大学化肥催化剂国家工程研究中心,350002,福州
基金项目:福建省科技厅科研项目,,
摘    要:利用拉曼光谱表征了不同方法添加CeO2-ZrO2混合氧化物对Pt/Al2O3催化剂的影响,并采用了XRD,H2化学吸附,BET表征了相应的分散度影响。结果表明:Ce、Zr、与金属Pt存在着强的相互作用,而CeO2-ZrO2以盐的形式加入时,高度分散在Al2O3载体上,提高贵金属Pt的分散度,进而提高了反应的活性。

关 键 词:拉曼光谱  CeO2  ZrO2  汽车尾气  催化剂  Pt/Al2O2

Characterization of the Pt/CeO2-ZrO2/Al2O3 Catalysts by Spectra
Yingying ZHAN,Qi ZHENG,Kemei WEI,Yihong XIAO,Guohui CAI,Tianming CHEN,Hanhui ZHANG.Characterization of the Pt/CeO2-ZrO2/Al2O3 Catalysts by Spectra[J].Spectroscopy and Spectral Analysis,2000,20(5):709-711.
Authors:Yingying ZHAN  Qi ZHENG  Kemei WEI  Yihong XIAO  Guohui CAI  Tianming CHEN  Hanhui ZHANG
Institution:National Engineering Researcher Center of Chemical Fertilizer Catalyst, Fuzhou University, 350002 Fuzhou.
Abstract:The performance of Pt/Al 2O 3 catalysts with C eO 2-ZrO 2 in difference ways was studied by NIR-FT-Raman,BET,H 2 chemisor ption,XRD.It shows that the dispersion of Pt on Al 2O 3 is improved with the i ncreasing of dispersion of CeO 2-ZrO 2 on the surface of Al 2O 3,owing to t he strong interacting between CeO 2-ZrO 2 and Pt.And adding with salts is pr iority.
Keywords:Raman spectra    CeO  2-ZrO  2    Catalysts  
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