Catalytic oxidation of benzene over ruthenium-cobalt bimetallic catalysts and study of its mechanism
Liu, Xiaolong1; Zeng, Junlin1; Shi, Wenbo1,2; Wang, Jian1; Zhu, Tingyu1,3; Chen, Yunfa1
2017
发表期刊CATALYSIS SCIENCE & TECHNOLOGY
ISSN2044-4753
卷号7期号:1页码:213-221
摘要In this work, ruthenium-based bimetallic catalysts of the formula Ru-5M/TiO2 (M = Mn, Co, Ce, Cu, Fe) were prepared and evaluated in benzene oxidation, and Ru-Co-5/TiO2 exhibited the lowest complete oxidation temperature (220 degrees C), demonstrating Co3O4 as the best dopant. The influence of the Ru and Co contents on the catalytic activity was also studied, and 1 wt% Ru and 5 wt% Co3O4 were confirmed. Water vapor showed an inhibition effect on benzene oxidation at 210 degrees C, whereas the catalytic efficiency was barely influenced at a higher temperature (230 degrees C). STEM analyses revealed that Ru-Co bimetallic species showed similar distributions on the catalytic surface. Based on the correlation of the catalytic results with various characterization techniques, the synergistic effect between Ru and Co was well demonstrated, and a four-step transformation in the oxidation process was concluded. Besides, systematic in situ FTIR studies for benzene oxidation over Ru/TiO2, Co/TiO2, and Ru-5Co/TiO2 were conducted and compared, and many organic intermediates were observed in the in situ FTIR spectra. Accordingly, the reaction mechanism for benzene oxidation over the Ru-Co bimetallic catalyst was proposed.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6cy02141g
收录类别SCI
语种英语
关键词[WOS]VOLATILE ORGANIC-COMPOUNDS ; PREFERENTIAL OXIDATION ; V2O5/TIO2 CATALYSTS ; LOW-TEMPERATURES ; OXYGEN MOBILITY ; OXIDE CATALYSTS ; CARBON-MONOXIDE ; GOLD CATALYSTS ; ETHYL-ACETATE ; DOPED CERIA
WOS研究方向Chemistry
WOS类目Chemistry, Physical
项目资助者Natural Science Foundation of China(21607154) ; Beijing Natural Science Foundation(8164063)
WOS记录号WOS:000392399900019
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21876
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Beijing 100190, Peoples R China
2.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
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Liu, Xiaolong,Zeng, Junlin,Shi, Wenbo,et al. Catalytic oxidation of benzene over ruthenium-cobalt bimetallic catalysts and study of its mechanism[J]. CATALYSIS SCIENCE & TECHNOLOGY,2017,7(1):213-221.
APA Liu, Xiaolong,Zeng, Junlin,Shi, Wenbo,Wang, Jian,Zhu, Tingyu,&Chen, Yunfa.(2017).Catalytic oxidation of benzene over ruthenium-cobalt bimetallic catalysts and study of its mechanism.CATALYSIS SCIENCE & TECHNOLOGY,7(1),213-221.
MLA Liu, Xiaolong,et al."Catalytic oxidation of benzene over ruthenium-cobalt bimetallic catalysts and study of its mechanism".CATALYSIS SCIENCE & TECHNOLOGY 7.1(2017):213-221.
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