Pt-confinement catalyst with dendritic hierarchical pores on excellent sulfur-resistance for hydrodesulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene
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 molecule...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2022-04-01
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| Series: | Green Energy & Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468025720301692 |
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| author | Xilong Wang Chengkun Xiao Mohnnad H. Alabsi Peng Zheng Zhengkai Cao Jinlin Mei Yu Shi Aijun Duan Daowei Gao Kuo-Wei Huang Chunming Xu |
| author_facet | Xilong Wang Chengkun Xiao Mohnnad H. Alabsi Peng Zheng Zhengkai Cao Jinlin Mei Yu Shi Aijun Duan Daowei Gao Kuo-Wei Huang Chunming Xu |
| author_sort | Xilong Wang |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-24T01:37:03Z |
| format | Article |
| id | doaj.art-4026898c0f474c928d5bc26c557fe5be |
| institution | Directory Open Access Journal |
| issn | 2468-0257 |
| language | English |
| last_indexed | 2024-12-24T01:37:03Z |
| publishDate | 2022-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Green Energy & Environment |
| spelling | doaj.art-4026898c0f474c928d5bc26c557fe5be2022-12-21T17:22:09ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572022-04-0172324333Pt-confinement catalyst with dendritic hierarchical pores on excellent sulfur-resistance for hydrodesulfurization of dibenzothiophene and 4,6-dimethyldibenzothiopheneXilong Wang0Chengkun Xiao1Mohnnad H. Alabsi2Peng Zheng3Zhengkai Cao4Jinlin Mei5Yu Shi6Aijun Duan7Daowei Gao8Kuo-Wei Huang9Chunming Xu10State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, China; KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi ArabiaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, ChinaKAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi ArabiaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, China; Corresponding authors.School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China; Corresponding authors.KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia; Corresponding authors.State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, China; Corresponding authors.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.http://www.sciencedirect.com/science/article/pii/S2468025720301692Pt-confinement effectHydrogen spilloverSulfur-resistanceDibenzothiophenesHydrodesulfurization |
| spellingShingle | Xilong Wang Chengkun Xiao Mohnnad H. Alabsi Peng Zheng Zhengkai Cao Jinlin Mei Yu Shi Aijun Duan Daowei Gao Kuo-Wei Huang Chunming Xu Pt-confinement catalyst with dendritic hierarchical pores on excellent sulfur-resistance for hydrodesulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene Green Energy & Environment Pt-confinement effect Hydrogen spillover Sulfur-resistance Dibenzothiophenes Hydrodesulfurization |
| title | Pt-confinement catalyst with dendritic hierarchical pores on excellent sulfur-resistance for hydrodesulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene |
| title_full | Pt-confinement catalyst with dendritic hierarchical pores on excellent sulfur-resistance for hydrodesulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene |
| title_fullStr | Pt-confinement catalyst with dendritic hierarchical pores on excellent sulfur-resistance for hydrodesulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene |
| title_full_unstemmed | Pt-confinement catalyst with dendritic hierarchical pores on excellent sulfur-resistance for hydrodesulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene |
| title_short | Pt-confinement catalyst with dendritic hierarchical pores on excellent sulfur-resistance for hydrodesulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene |
| title_sort | pt confinement catalyst with dendritic hierarchical pores on excellent sulfur resistance for hydrodesulfurization of dibenzothiophene and 4 6 dimethyldibenzothiophene |
| topic | Pt-confinement effect Hydrogen spillover Sulfur-resistance Dibenzothiophenes Hydrodesulfurization |
| url | http://www.sciencedirect.com/science/article/pii/S2468025720301692 |
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