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Monolithic Pt/Ce0.8Zr0.2O2/cordierite catalysts for low temperature water gas shift reaction in the real reformate
Du, Xiaru1,2; Gao, Diannan1,2; Yuan, Zhongshan1; Liu, Na1,2; Zhang, Chunxi1; Wang, Shudong1; Wang SD(王树东); Wang SD(王树东)
关键词Monolithic Catalysts Water Gas Shift Reaction Platinum Ce0.8zr0.2o2 Rhenium
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2008-07-01
DOI10.1016/j.ijhydene.2008.04.041
33期:14页:3710-3718
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 ; Electrochemistry ; Energy & Fuels
研究领域[WOS]Chemistry ; Electrochemistry ; Energy & Fuels
关键词[WOS]SELECTIVE CO OXIDATION ; CERIA CATALYSTS ; GENERATION ; METALS ; OXIDES ; SYSTEM
英文摘要Monolithic catalysts were prepared by washcoating Ce0.8Zr0.2O2 slurries and then impregnating platinum or rhenium onto cordierite substrates, and characterized by Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), inductively coupled plasma (ICP), temperature-programmed-reduction (TPR) and temperature-programmed deposition of CO (CO-TPD) techniques. The effects of preparation parameters on the catalytic performance for water gas shift (WGS) reaction were investigated in details, including different Ce0.8Zr0.2O2 powder as washcoat, coat loadings, metal loadings, Pt/Re weight ratio and impregnation sequences. In addition, pyrophoricity (exposure to oxygen stream) and long-term stability were carried out over monolithic catalysts with the optimized composition. The results showed that Ce0.8Zr0.2O2 prepared by microemulsion methods was the preferred washcoat, and that 50wt% Ce0.8Zr0.2O2 coat loading and 0.68wt% Pt loading were required to reduce CO content to ca. 1%. The optimal catalytic performance was achieved over 0.11 wt% Re/0.34wt% Pt/50wt% Ce0.8Zr0.2O2-M/cordierite catalyst. Pyrophoricity tests indicated that no obvious activity loss was observed over 0.11 wt% Re/0.34 wt% Pt/50wt% Ce0.8Zr0.2O2-M/Cordierite catalyst after three exposures to oxygen; while 17% of the initial activity was lost over industrial B206 after one exposure. Monolithic 0.11wt% Re/0.34wt% Pt/50wt% Ce0.8Zr0.2O2-M/cordierite catalyst exhibited good stability during 80h on-stream test. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
语种英语
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WOS记录号WOS:000258987000011
引用统计
被引频次:22[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/321008/100503
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); 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 Univ, Beijing 100039, Peoples R China
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GB/T 7714
Du, Xiaru,Gao, Diannan,Yuan, Zhongshan,et al. Monolithic Pt/Ce0.8Zr0.2O2/cordierite catalysts for low temperature water gas shift reaction in the real reformate[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2008,33(14):3710-3718.
APA Du, Xiaru.,Gao, Diannan.,Yuan, Zhongshan.,Liu, Na.,Zhang, Chunxi.,...&王树东.(2008).Monolithic Pt/Ce0.8Zr0.2O2/cordierite catalysts for low temperature water gas shift reaction in the real reformate.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,33(14),3710-3718.
MLA Du, Xiaru,et al."Monolithic Pt/Ce0.8Zr0.2O2/cordierite catalysts for low temperature water gas shift reaction in the real reformate".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 33.14(2008):3710-3718.
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