太阳成8722(中国)有限公司-GREEN NO.1

标题：Controlled synthesis of diverse manganese oxide-based catalysts for complete oxidation of toluene and carbon monoxide作者：Li, Jinjun; Li, Liang; Cheng, Wei; Wu, Feng; Lu, Xiaofei; Li, Zepeng

来源出版物：CHEMICAL ENGINEERING JOURNAL 卷：244页：59-67 DOI：10.1016/j.cej.2014.01.041 出版年：MAY 15 2014

摘要：Manganese oxides with various morphologies and crystal structures for catalytic oxidation of air pollutants were synthesized by reacting fresh manganese hydroxide and acetic acid (HAc) at an HAc/Mn molar ratio of 1, 2 or 3. The characterizations and activity tests indicates that the HAc/Mn ratio has significant influence on the properties and the catalytic activities of the produced manganese oxides. Manganese oxide produced at an HAc/Mn ratio of 2 is composed of nanorods having relatively uniform diameters, and it possesses the most reducible manganese oxide species and the highest content of surface adsorbed oxygen species, which could contribute to its best activity in the catalytic deep oxidation of toluene. Manganese oxide produced at an HAc/Mn ratio of 3 possesses the largest specific surface area and is the most efficient in the catalytic oxidation of carbon monoxide. Palladium was impregnated onto manganese oxide at a loading of 0.3 wt% to investigate their combined effects on catalytic destruction of the pollutants. The incorporation of palladium causes decreased activity in catalytic oxidation of toluene, which might be associated with the reduction in the amount of active surface oxygen species on the catalyst. In contrast, palladium actually promotes the catalytic oxidation of carbon monoxide probably due to the additional adsorption of carbon monoxide on noble metal.

入藏号：WOS:000334134700008

文献类型：Article

语种：English

作者关键词：Catalytic oxidation, Manganese oxide, Palladium, Volatile organic compounds, Carbon monoxide

扩展关键词：VOLATILE ORGANIC-COMPOUNDS; TEMPERATURE CO OXIDATION; HIGHLY-ACTIVE NANOCATALYSTS; MNOX-CEO2 MIXED-OXIDE; FORMALDEHYDE OXIDATION; METHANE COMBUSTION; SURFACE-STRUCTURE; PERFORMANCE; BENZENE; MN3O4

通讯作者地址：Li, Jinjun; Wuhan Univ, Hubei Key Lab Bioresources & Environm Biotechnol, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China.

电子邮件地址：ljjcbacademy@163.com

地址：

[Li, Jinjun; Li, Liang; Cheng, Wei; Wu, Feng; Lu, Xiaofei; Li, Zepeng] Wuhan Univ, Hubei Key Lab Bioresources & Environm Biotechnol, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China.

研究方向：Engineering

ISSN：1385-8947