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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
刊名JOURNAL OF PHYSICAL CHEMISTRY B
2005-03-24
DOI10.1021/jp045119z
109期:11页:5186-5192
收录类别SCI
文章类型Article
部门归属5
项目归属502
产权排名2;5
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]CATALYTIC-PROPERTIES ; ADSORPTION ; SULFUR ; ZEOLITES ; SURFACES ; COMPLEXES ; HYDROGEN ; NI(100) ; ALLOY ; FURAN
英文摘要The 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.
语种英语
原文出处查看原文
WOS记录号WOS:000227734500053
引用统计
被引频次:23[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/321008/93109
专题中国科学院大连化学物理研究所
通讯作者Zhang XX; Zhang XX
作者单位1.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
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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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