Publication timeAuthorsYears：2007-2011,5.
钾掺杂对铈锆固溶体催化性能的影响
Influences of doping potassium on catalytic performances of ceria-zirconia solid solutions
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Abstract
A series of xK-Ce0.7Zr0.302（x =0.05, 0. 10, 0. 15, 0.20, 0.25, 0.30） solid solutions were prepared. The influence of doping potassium on the catalytic performance for particle materials （PM） oxidation was investigated by temperature-programmed oxidation reaction （TPO）. And all the catalysts were characterized by the techniques of X-ray diffraction, BET surface area, Hz-TPR, and Oz-TPD. The results show that the cata- lytic performance of the catalyst which prepared by sol-gel method is better than by complex-combustion method. The catalytic performances of xK-Ce0.7Zr0.3 02 （0.10 ≤ x ≤0.30 ） catalysts are obviously better than Ce0.7Zr0.3 02, whose ignition temperature and maximum soot oxidation rate temperature are around 315℃ and 375℃ , respectively. After introduction of potassium, all the catalysts form cubic fluorite structure, and their surface areas decrease with the rise of x value.关键词
铈锆固溶体/金属钾/催化性能/PM/掺杂Key words
ceria-zireonia solid solutions/potassium/catalytic performance/PM/dope分类
资源环境引用本文复制引用
王婷婷,谢其刚,洪燕霞,梁红,李树华..钾掺杂对铈锆固溶体催化性能的影响[J].环境工程学报,2012,6(6):2007-2011,5.基金项目
广东省自然科学基金资助项目 （）
广东省社会发展科技项目 （）
环境工程学报
OA北大核心CSCDCSTPCD
1673-9108
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