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dc.contributor.authorShi, Yu
dc.contributor.authorXiao, Chengkun
dc.contributor.authorMei, Jinlin
dc.contributor.authorAlabsi, Mohnnad H.
dc.contributor.authorWang, Gang
dc.contributor.authorNi, Yan
dc.contributor.authorZhao, Zhen
dc.contributor.authorDuan, Aijun
dc.contributor.authorWang, Xilong
dc.date.accessioned2020-08-16T11:39:28Z
dc.date.available2020-08-16T11:39:28Z
dc.date.issued2020-06-15
dc.date.submitted2020-04-24
dc.identifier.citationShi, Y., Xiao, C., Mei, J., Alabsi, M. H., Wang, G., Ni, Y., … Wang, X. (2020). Modified Dendritic Mesoporous Silica Nanospheres Composites: Superior Pore Structure and Acidity for Enhanced Hydrodesulfurization Performance of Dibenzothiophene. Energy & Fuels, 34(7), 8759–8768. doi:10.1021/acs.energyfuels.0c01325
dc.identifier.issn1520-5029
dc.identifier.issn0887-0624
dc.identifier.doi10.1021/acs.energyfuels.0c01325
dc.identifier.urihttp://hdl.handle.net/10754/664609
dc.description.abstractDendritic mesoporous silica nanospheres (DMSNs) with a center-radical pore structure were successfully fabricated with ZSM-5 seeds to synthesize hierarchically meso-microporous ZSM-5/DMSN (ZD) materials which were used as the support for preparing HDS catalysts. The catalytic activities were evaluated by adopting DBT as the model oil. ZD composites and the corresponding catalysts were well characterized by XRD, XPS, HRTEM, and other techniques. The characterization results manifested that the specific center-radical pore structure was retained after incorporation of microporous zeolite ZSM-5; thus, ZD exhibited a wide pore diameter of about 17 nm, which was definitely preferable for mass transfer in the S removal process. Meanwhile, the open pore channels enhanced the accessibility of the active sites on the internal surface of the catalysts. Introducing ZSM-5 seeds into the framework of DMSNs also improved the acidity and modulated the metal-support interaction as well. As a result, NiMo/ZD series catalysts demonstrated high HDS activities, of which NiMo/ZD-3 achieved the highest HDS efficiency of 98.3%. The superior catalytic performance not only originated from the large center-radical pore structure and good acidity of support but also related to the suitable metal-support interaction and perfect dispersion of the metallic active sites.
dc.description.sponsorshipThis research was supported by the National Natural Science Foundation of China (Nos. 21878330 and 21676298), the National Science and Technology Major Project, the CNPC Key Research Project (2016E-0707), and the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award (No. OSR-2019-CPF-4103.2).
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acs.energyfuels.0c01325
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy and Fuels, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.energyfuels.0c01325.
dc.titleModified Dendritic Mesoporous Silica Nanospheres Composites: Superior Pore Structure and Acidity for Enhanced Hydrodesulfurization Performance of Dibenzothiophene
dc.typeArticle
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalEnergy and Fuels
dc.rights.embargodate2021-06-15
dc.eprint.versionPost-print
dc.contributor.institutionState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 18 Fuxue Road, Beijing 102249, People's Republic of China
dc.identifier.volume34
dc.identifier.issue7
dc.identifier.pages8759-8768
kaust.personAlabsi, Mohnnad H.
kaust.personWang, Xilong
dc.date.accepted2020-06-15
dc.identifier.eid2-s2.0-85089104836
refterms.dateFOA2020-08-17T10:54:56Z
kaust.acknowledged.supportUnitOffice of Sponsored Research (OSR)
dc.date.published-online2020-06-15
dc.date.published-print2020-07-16


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