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Sol-gel enhanced mesoporous Cu-Ce-Zr catalyst for toluene oxidation
Kang RN(康润宁); Wei XL(魏小林); Li HX(李慧鑫); Bin F(宾峰); Zhao RZ; Hao QL; Dou BJ

The bulk-phase Cu-Ce-Zr catalyst BP-gel was prepared by the sol-gel method and investigated for the oxidation of toluene in a fixed-bed reactor. For comparison, other bulk-phase catalysts (thermal decomposition (BP-td), solid-state reaction (BP-sr)) and supported catalysts (incipient wetness impregnation (S-iwi), saturated impregnation (S-si)) were tested. The results showed that the catalytic activities were in the following order: BP-gel>S-si>S-iwi>BP-td>BP-sr. The BP-gel catalyst, which has a mesoporous structure, is beneficial for the mass transfer of reactant molecules. The thermal stability of the BP-gel catalyst was improved by the introduction of ZrO2. Bulk CuO in the catalysts reduced their activity because the synergetic effect between CuO and CeO2 decreased. The low-temperature reducibility, large pore sizes, rich oxygen vacancies, and active oxygen species contributed to the highest activity of the BP-gel, with a T-90 as low as 219 degrees C, and no deactivation was observed during the 72 h stability test at the set temperature.

KeywordCu-ce-zr Catalyst Catalytic Oxidation Preparation Method Toluene
Indexed BySCI ; EI
WOS IDWOS:000426900200008
WOS KeywordCarbon-monoxide Oxidation ; Copper/zsm-5 Catalysts ; Oxide Catalysts ; Composite Oxide ; Co Oxidation ; Temperature ; Performance ; Combustion ; Removal ; Mn
WOS Research AreaThermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical
WOS SubjectThermodynamics ; Energy & Fuels ; Engineering
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorBin F(宾峰); Dou BJ
Affiliation1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
2.North China Univ Sci & Technol, Coll Met & Energy, Tangshan, Peoples R China
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China
4.Tianjin Univ Sci & Technol, Coll Environm Sci, Tianjin, Peoples R China
Recommended Citation
GB/T 7714
Kang RN,Wei XL,Li HX,et al. Sol-gel enhanced mesoporous Cu-Ce-Zr catalyst for toluene oxidation[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2018,190(5):878-892.
APA Kang RN.,Wei XL.,Li HX.,Bin F.,Zhao RZ.,...&Dou BJ.(2018).Sol-gel enhanced mesoporous Cu-Ce-Zr catalyst for toluene oxidation.COMBUSTION SCIENCE AND TECHNOLOGY,190(5),878-892.
MLA Kang RN,et al."Sol-gel enhanced mesoporous Cu-Ce-Zr catalyst for toluene oxidation".COMBUSTION SCIENCE AND TECHNOLOGY 190.5(2018):878-892.
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