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    Pt-confinement catalyst with Dendritic hierarchical pores on Excellent Sulfur-resistance for Hydrodesulfurization of Dibenzothiophene and 4,6-Dimethyldibenzothiophene

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    Name:
    Pt.-1-s2.0-S2468025720301692-main.pdf
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    5.428Mb
    Format:
    PDF
    Description:
    Accepted manuscript
    Embargo End Date:
    2022-10-14
    Download
    Type
    Article
    Authors
    Wang, Xilong
    Xiao, Chengkun
    Alabsi, Mohnnad H. cc
    Zheng, Peng
    Cao, Zhengkai
    Mei, Jinlin
    Shi, Yu
    Duan, Aijun
    Gao, Daowei
    Huang, Kuo-Wei cc
    Xu, Chunming
    KAUST Department
    Biological and Environmental Science and Engineering (BESE) Division
    Chemical Science Program
    Homogeneous Catalysis Laboratory (HCL)
    KAUST Catalysis Center (KCC)
    Physical Science and Engineering (PSE) Division
    KAUST Grant Number
    OSR-2019-CPF-4103.2
    Date
    2020-10-14
    Embargo End Date
    2022-10-14
    Submitted Date
    2020-07-02
    Permanent link to this record
    http://hdl.handle.net/10754/667616
    
    Metadata
    Show full item record
    Abstract
    Metal confinement catalyst MoS2/Pt@TD-6%Ti (TD, TS-1/Dendritic mesoporous silica nanoparticles composite) in dendritic hierarchical pore structures was synthesized and showed excellent sulfur-resistance performance and stabilities in catalytic hydrodesulfurization reactions of probe sulfide molecules. The MoS2/Pt@TD-6%Ti catalyst combines the concepts of Pt-confinement effect and hydrogen spillover of Pt noble metal. The modified micropores of Mo/Pt@TD-6%Ti only allow the migration and dissociation of small H2 molecules (0.289 nm), and effectively keep the sulfur-containing compounds (e.g. H2S, 0.362 nm) outside. Thus, the MoS2/Pt@TD-6%Ti catalyst exhibits higher DBT and 4,6-DMDBT HDS activities because of the synergistic effect of the strong H2 dissociation ability of Pt and desulfurization ability of MoS2 with a lower catalyst cost. This new concept combining H2 dissociation performance of noble metal catalyst with the desulfurization ability of transition metal sulfide MoS2 can protect the noble metal catalyst avoiding deactivation and poison, and finally guarantee the higher activities for DBT and 4,6-DMDBT HDS.
    Citation
    Wang, X., Xiao, C., Alabsi, M. H., Zheng, P., Cao, Z., Mei, J., … Xu, C. (2020). Pt-confinement catalyst with Dendritic hierarchical pores on Excellent Sulfur-resistance for Hydrodesulfurization of Dibenzothiophene and 4,6-Dimethyldibenzothiophene. Green Energy & Environment. doi:10.1016/j.gee.2020.10.012
    Sponsors
    This research was supported by the National Natural Science Foundation of China (No. 21808079, 21878330 and 21676298), Key Research and Development Program of Shandong Province (No. 2019GSF109115), the National Science and Technology Major Project, the CNPC Key Research Project (2016E-0707), the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award (No. OSR-2019-CPF-4103.2) and the Project of National Key R&D Program of China (2019YFC1907700).
    Publisher
    Elsevier BV
    Journal
    Green Energy & Environment
    DOI
    10.1016/j.gee.2020.10.012
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S2468025720301692
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.gee.2020.10.012
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Physical Science and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC)

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