DICP OpenIR
Structure Investigation and Dibenzothiophene Hydrodesulfurization Properties of Fe-Substituted Ni-Si Intermetallics
Chen, Xiao1; Wang, Junhu2,3; Yang, Kaixuan1; Meng, Changgong1; Williams, Christopher T.4; Liang, Changhai1
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2015-12-31
ISSN1932-7447
DOI10.1021/acs.jpcc.5b10773
Volume119Issue:52Pages:29052-29061
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordX-RAY-DIFFRACTION ; EFFICIENT CATALYST ; NICKEL-CATALYSTS ; ACTIVE-SITES ; MOSSBAUER ; HYDROGENATION ; 4,6-DIMETHYLDIBENZOTHIOPHENE ; PHENYLACETYLENE ; SURFACE ; SULFUR
AbstractDevelopment of highly active and sulfur-tolerant catalysts for deep hydrodesulfurization (HDS) is of great importance in petroleum refining. Here, the discovery of Fe-substituted Ni Si intermetallic catalysts (Ni1-x,FexSi2) that efficiently removes dibenzothiophene (DBT) by HDS is reported. The structure of the catalyst was identified through X-ray diffraction, Mossbauer spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. The results showed that Fe atoms substituted Ni atoms in Nii_xFe Si, catalysts, which preferentially bond with Ni to form alloy and combine with Si to form silicide. The DBT activity for the Ni1-xFexSi2 has the following order: Ni0.75Fe0.25Si2 > NiSi2 > N10.50Fe0.50Si2 Ni0.25Fe0.75Si2 i Fe Si. The positive synergistic effect on HDS activity can be correlated to that the formation of Ni Fe and Fe Si bonds makes the metal site to have high d-electron density, which promotes the hydrogenation activity. Comparison with the fresh and spent catalysts revealed the stability and sulfur resistance of these catalysts. The present findings suggest that Fe-substituted Ni Si intermetallics catalysts provide a good starting point for a new catalyst development in the HDS field.
Language英语
WOS IDWOS:000367704500038
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/171465
Collection中国科学院大连化学物理研究所
Corresponding AuthorLiang, Changhai
Affiliation1.Dalian Univ Technol, Sch Chem Engn, Lab Adv Mat & Catalyt Engn, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Catalysts & New Mat Aerosp, Dalian 116023, Peoples R China
4.Univ S Carolina, Dept Chem Engn, Swearingen Engn Ctr, Columbia, SC 29208 USA
Recommended Citation
GB/T 7714
Chen, Xiao,Wang, Junhu,Yang, Kaixuan,et al. Structure Investigation and Dibenzothiophene Hydrodesulfurization Properties of Fe-Substituted Ni-Si Intermetallics[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(52):29052-29061.
APA Chen, Xiao,Wang, Junhu,Yang, Kaixuan,Meng, Changgong,Williams, Christopher T.,&Liang, Changhai.(2015).Structure Investigation and Dibenzothiophene Hydrodesulfurization Properties of Fe-Substituted Ni-Si Intermetallics.JOURNAL OF PHYSICAL CHEMISTRY C,119(52),29052-29061.
MLA Chen, Xiao,et al."Structure Investigation and Dibenzothiophene Hydrodesulfurization Properties of Fe-Substituted Ni-Si Intermetallics".JOURNAL OF PHYSICAL CHEMISTRY C 119.52(2015):29052-29061.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Xiao]'s Articles
[Wang, Junhu]'s Articles
[Yang, Kaixuan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Xiao]'s Articles
[Wang, Junhu]'s Articles
[Yang, Kaixuan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Xiao]'s Articles
[Wang, Junhu]'s Articles
[Yang, Kaixuan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.