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Comparative X-ray photoelectron spectroscopic study on the desulfurization of thiophene by Raney Nickel and rapidly quenched skeletal nickel
Hu, HR; Qiao, MH; Xie, FZ; Fan, KN; Lei, H; Tan, D; Bao, XH; Lin, HL; Zong, BN; Zhang, XX; Zhang XX; Zhang XX
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
2005-03-24
DOI10.1021/jp045119z
Volume109Issue:11Pages:5186-5192
Indexed BySCI
SubtypeArticle
Department5
Funding Project502
Contribution Rank2;5
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordCATALYTIC-PROPERTIES ; ADSORPTION ; SULFUR ; ZEOLITES ; SURFACES ; COMPLEXES ; HYDROGEN ; NI(100) ; ALLOY ; FURAN
AbstractThe desulfurization of thiophene on Raney Ni and rapidly quenched skeletal Ni (RQ Ni) has been studied in ultrahigh vacuum (UHV) by X-ray photoelectron spectroscopy (XPS). The Raney Ni or RQ Ni can be approximated as a hydrogen-preadsorbed polycrystalline Ni-alumina composite. It is found that thiophene molecularly adsorbs on Raney Ni or RQ Ni at 103 K. At 173 K, thiophene on alumina is desorbed, while thiophene in direct contact with the metallic Ni in Raney Ni undergoes C-S bond scission, leading to carbonaceous species most probably in the metallocycle-like configuration and atomic sulfur. On RQ Ni, the temperature for thiophene dissociation is about 100 K higher than that on Raney Ni. The lower reactivity of RQ Ni toward thiophene is tentatively attributed to lattice expansion of Ni crystallites in RQ Ni due to rapid quenching. The existence of alumina and hydrogen may block the further cracking of the metallocycle-like species on Raney Ni and RQ Ni at higher temperatures, which has been the dominant reaction pathway on Ni single crystals. By 473 K, the C Is peak has disappeared, leaving nickel sulfide on the surface.
Language英语
URL查看原文
WOS IDWOS:000227734500053
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/93109
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhang XX; Zhang XX
Affiliation1.Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
2.Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
4.Res Inst Petr Proc, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Hu, HR,Qiao, MH,Xie, FZ,et al. Comparative X-ray photoelectron spectroscopic study on the desulfurization of thiophene by Raney Nickel and rapidly quenched skeletal nickel[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2005,109(11):5186-5192.
APA Hu, HR.,Qiao, MH.,Xie, FZ.,Fan, KN.,Lei, H.,...&Zhang XX.(2005).Comparative X-ray photoelectron spectroscopic study on the desulfurization of thiophene by Raney Nickel and rapidly quenched skeletal nickel.JOURNAL OF PHYSICAL CHEMISTRY B,109(11),5186-5192.
MLA Hu, HR,et al."Comparative X-ray photoelectron spectroscopic study on the desulfurization of thiophene by Raney Nickel and rapidly quenched skeletal nickel".JOURNAL OF PHYSICAL CHEMISTRY B 109.11(2005):5186-5192.
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