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学科主题物理化学
Enhanced hydrothermal stability of high performance lean fuel combustion alumina-supported palladium catalyst modified by nickel
Liu, Ying1,2; Wang, Sheng1; Sun, Tianjun1; Gao, Diannan1; Zhang, Chunxi1; Wang, Shudong1; Wang SD(王树东)
关键词Ventilation Air Methane Combustion Palladium Nial2o4 Spinel Lattice Mismatch
刊名APPLIED CATALYSIS B-ENVIRONMENTAL
2012-05-30
DOI10.1016/j.apcatb.2012.02.032
119页:321-328
收录类别SCI
文章类型Article
部门归属9
项目归属901
产权排名1,1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]GAS ENGINE EXHAUST ; METHANE COMBUSTION ; LOW-TEMPERATURE ; COMPLETE OXIDATION ; PD CATALYSTS ; THERMAL-STABILITY ; WATER ; BEHAVIOR ; OXIDE ; NI
英文摘要The hydrothermal stability of Pd-based methane combustion catalyst was investigated under lean-fuel conditions, such as ventilation air methane. For the catalyst, the active component Pd was impregnated on Ni-modified alumina supports which were prepared by a modified method. The method was coupled with the conventional co-precipitation and hydrothermal synthesis process. A series of Pd catalysts and supports prepared, which had the Ni/Al ratios of 1:4, 1:2 and 1:1, were characterized by BET, CO-chemisorption, XRD, TPR, SEM and TEM. The relationship between active sites and supports was studied using HRTEM. In addition, the performances for lean methane combustion of all catalysts were studied. Results showed that the catalyst on well crystallized NiAl2O4 spinet support exhibited the superior hydrothermal stability. Methane conversion remained 96% after 3200 h at 873 K. Such excellent catalytic performance has been validated to relate to the stabilizing effect of support and the least lattice mismatch between NiAl2O4 and Pd, which contributed to high Pd dispersion. (C) 2012 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000304691700038
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/117936
专题中国科学院大连化学物理研究所
通讯作者Wang SD(王树东)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Liu, Ying,Wang, Sheng,Sun, Tianjun,et al. Enhanced hydrothermal stability of high performance lean fuel combustion alumina-supported palladium catalyst modified by nickel[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2012,119:321-328.
APA Liu, Ying.,Wang, Sheng.,Sun, Tianjun.,Gao, Diannan.,Zhang, Chunxi.,...&王树东.(2012).Enhanced hydrothermal stability of high performance lean fuel combustion alumina-supported palladium catalyst modified by nickel.APPLIED CATALYSIS B-ENVIRONMENTAL,119,321-328.
MLA Liu, Ying,et al."Enhanced hydrothermal stability of high performance lean fuel combustion alumina-supported palladium catalyst modified by nickel".APPLIED CATALYSIS B-ENVIRONMENTAL 119(2012):321-328.
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