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题名: Investigation of CO and formaldehyde oxidation over mesoporous Ag/Co3O4 catalysts
作者: Yu, Fangli1;  Qu, Zhenping1;  Zhang, Xiaodong1;  Fu, Qiang2;  Wang, Yi1
关键词: mesoporous materials ;  Co3O4 ;  Ag ;  CO oxidation ;  HCHO oxidation
刊名: JOURNAL OF ENERGY CHEMISTRY
发表日期: 2013-11-01
卷: 22, 期:6, 页:845-852
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Energy & Fuels ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering
英文摘要: CO and formaldehyde (HCHO) oxidation reactions were investigated over mesoporous Ag/Co3O4 catalysts prepared by one-pot (OP) and impregnation (IM) methods. It was found that the one-pot method was superior to the impregnation method for synthesizing Ag/Co3O4 catalysts with high activity for both reactions. It was also found that the catalytic behavior of mesoporous Co3O4 and Ag/Co3O4 catalysts for the both reactions was different. And the addition of silver on mesoporous Co3O4 did not always enhance the catalytic activity of final catalyst for CO oxidation at room temperature (20 degrees C), but could significantly improve the catalytic activity of final catalyst for HCHO oxidation at low temperature (90 degrees C). The high surface area, uniform pore structure and the pretty good dispersion degree of the silver particle should be responsible for the excellent low-temperature CO oxidation activity. However, for HCHO oxidation, the addition of silver played an important role in the activity enhancement. And the silver particle size and the reducibility of Co3O4 should be indispensable for the high activity of HCHO oxidation at low temperature.
关键词[WOS]: LOW-TEMPERATURE OXIDATION ;  CARBON-MONOXIDE OXIDATION ;  PREFERENTIAL OXIDATION ;  COMPOSITE CATALYST ;  POROUS CO3O4 ;  OXIDE ;  CEO2 ;  GOLD ;  DECOMPOSITION ;  PERFORMANCE
语种: 英语
WOS记录号: WOS:000328434900005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137517
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn MOE, Dalian 116024, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Yu, Fangli,Qu, Zhenping,Zhang, Xiaodong,et al. Investigation of CO and formaldehyde oxidation over mesoporous Ag/Co3O4 catalysts[J]. JOURNAL OF ENERGY CHEMISTRY,2013,22(6):845-852.
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