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FeOx Supported Single-Atom Pd Bifunctional Catalyst for Water Gas Shift Reaction
Sun, Xiucheng1,2; Lin, Jian1; Zhou, Yanliang1,2; Li, Lin1; Su, Yang1; Wang, Xiaodong1; Zhang, Tao1
关键词Hydrogen Water Gas Shift Palladium Iron Oxide Single Atoms
刊名AICHE JOURNAL
2017-09-01
DOI10.1002/aic.15759
63期:9页:4022-4031
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Chemical
研究领域[WOS]Engineering
关键词[WOS]TEMPERATURE CO OXIDATION ; PREFERENTIAL OXIDATION ; HYDROGEN-PRODUCTION ; CARBON-MONOXIDE ; WGS REACTION ; CERIA ; NANOPARTICLES ; MECHANISM ; KINETICS ; SYSTEMS
英文摘要Water gas shift reaction on supported noble metal catalysts is an essential process for upgrading hydrogen source industrially. Here a series of Pd/FeOx catalysts were detected for this reaction with Pd/Al2O3 as reference. It was found that Pd/FeOx exhibited higher CO conversion than Pd/Al2O3 with a good stability even in the presence of CO2 and H-2. Along the loading decreasing, the turnover frequency of exposed Pd atoms increased with the dispersion from subnanometer (similar to 1 nm) to single atoms. Various characterizations suggested that Pd single atoms greatly enhanced the reducibility of FeOx and facilitated the formation of oxygen vacancies, which served as sites to promote the dissociation of H2O to form H-2 and atomic O. The atomic O was ready to react with the linear adsorbed CO species on Pd single-atom sites through a redox mechanism, which resulted in low activation energy of similar to 30 kJ mol(-1). (C) 2017 American Institute of Chemical Engineers
语种英语
WOS记录号WOS:000407192500032
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/149953
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Sun, Xiucheng,Lin, Jian,Zhou, Yanliang,et al. FeOx Supported Single-Atom Pd Bifunctional Catalyst for Water Gas Shift Reaction[J]. AICHE JOURNAL,2017,63(9):4022-4031.
APA Sun, Xiucheng.,Lin, Jian.,Zhou, Yanliang.,Li, Lin.,Su, Yang.,...&Zhang, Tao.(2017).FeOx Supported Single-Atom Pd Bifunctional Catalyst for Water Gas Shift Reaction.AICHE JOURNAL,63(9),4022-4031.
MLA Sun, Xiucheng,et al."FeOx Supported Single-Atom Pd Bifunctional Catalyst for Water Gas Shift Reaction".AICHE JOURNAL 63.9(2017):4022-4031.
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