DICP OpenIR
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
KeywordHydrogen Water Gas Shift Palladium Iron Oxide Single Atoms
Source PublicationAICHE JOURNAL
2017-09-01
DOI10.1002/aic.15759
Volume63Issue:9Pages:4022-4031
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
WOS SubjectEngineering, Chemical
WOS Research AreaEngineering
WOS KeywordTEMPERATURE CO OXIDATION ; PREFERENTIAL OXIDATION ; HYDROGEN-PRODUCTION ; CARBON-MONOXIDE ; WGS REACTION ; CERIA ; NANOPARTICLES ; MECHANISM ; KINETICS ; SYSTEMS
AbstractWater 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
Language英语
WOS IDWOS:000407192500032
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/149953
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
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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