文献类型：期刊文献

英文题名：Highly efficient formaldehyde elimination over meso-structured M/CeO2 (M = Pd, Pt, Au and Ag) catalyst under ambient conditions

作者：Li, Gengnan[1];Li, Liang[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2015

卷号：5

期号：46

起止页码：36428

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20151800803413);WOS:【SCI-EXPANDED(收录号:WOS:000353651200026)】；

基金：This study was supported by National Basic Research Program of China (973 Program) no. 2013CB933201.

语种：英文

外文关键词：Catalytic oxidation - Palladium compounds - Gold - Gold compounds - Metal nanoparticles - Catalyst activity - Formaldehyde - Platinum compounds

摘要：A series of mesoporous CeO2 supported noble metal (Pt, Pd, Au and Ag) catalysts, fabricated through a facial pyrolysis and in situ reduction protocol, were used for formaldehyde elimination under ambient conditions. The materials possessed relatively high specific surface area and uniformly dispersed noble metal nanoparticles, and showed very high catalytic activities for formaldehyde oxidation. For about 1 wt% noble metal loaded materials, Pt/CeO2, Pd/CeO2 and Au/CeO2 catalysts could completely catalytically oxidize HCHO at room temperature. Even for the low activity Ag/CeO2 catalyst, the complete conversion temperature could reach 100 degrees C, much lower than that reported before. Such good catalytic properties could be attributed to the strong synergetic interaction between the active component and CeO2 nano-crystalline aggregated support. The reaction mechanism over the noble-metal/CeO2 catalyst was also discussed through in situ DRIFTS analysis.