Synthesis of Ni-Modified ZSM-5 Zeolites and Their Catalytic Performance in n-Octane Hydroconversion
Ni-modified ZSM-5 zeolites with different nickel contents were successfully prepared by the in situ synthesis method and the impregnation method. The synthesized samples were characterized by XRD, SEM, N2 adsorption–desorption isothermals, and Py-FTIR. The characterization results show that both the...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2020-12-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fchem.2020.586445/full |
| _version_ | 1818435685287198720 |
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| author | Qiang Wei Pengfei Zhang Xiaodong Liu Wenbin Huang Xiayun Fan Yitong Yan Rongxun Zhang Lin Wang Yasong Zhou |
| author_facet | Qiang Wei Pengfei Zhang Xiaodong Liu Wenbin Huang Xiayun Fan Yitong Yan Rongxun Zhang Lin Wang Yasong Zhou |
| author_sort | Qiang Wei |
| collection | DOAJ |
| description | Ni-modified ZSM-5 zeolites with different nickel contents were successfully prepared by the in situ synthesis method and the impregnation method. The synthesized samples were characterized by XRD, SEM, N2 adsorption–desorption isothermals, and Py-FTIR. The characterization results show that both the textural properties and crystallization of Ni-modified ZSM-5 zeolites were preserved well, and their acidic properties can be modulated after nickel modification. The corresponding NiMo catalysts supported on Ni-modified ZSM-5 zeolites were prepared by the incipient wetness co-impregnation method, and their catalytic performances were evaluated in n-octane hydroconversion. Compared to the those modified by the in situ synthesis method, ZSM-5 zeolite-supported catalysts modified by the impregnation method exhibit higher stability and higher isomerization selectivity. This is due to the synergistic effect between Brønsted acid sites and Lewis acid sites on the Ni-modified ZSM-5 zeolites, especially for the NiMo/1Ni-Z5 catalyst. |
| first_indexed | 2024-12-14T16:56:49Z |
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| id | doaj.art-0c3c7bca618d4b7ca86aa5017eeb1a05 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-14T16:56:49Z |
| publishDate | 2020-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-0c3c7bca618d4b7ca86aa5017eeb1a052022-12-21T22:53:57ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462020-12-01810.3389/fchem.2020.586445586445Synthesis of Ni-Modified ZSM-5 Zeolites and Their Catalytic Performance in n-Octane HydroconversionQiang WeiPengfei ZhangXiaodong LiuWenbin HuangXiayun FanYitong YanRongxun ZhangLin WangYasong ZhouNi-modified ZSM-5 zeolites with different nickel contents were successfully prepared by the in situ synthesis method and the impregnation method. The synthesized samples were characterized by XRD, SEM, N2 adsorption–desorption isothermals, and Py-FTIR. The characterization results show that both the textural properties and crystallization of Ni-modified ZSM-5 zeolites were preserved well, and their acidic properties can be modulated after nickel modification. The corresponding NiMo catalysts supported on Ni-modified ZSM-5 zeolites were prepared by the incipient wetness co-impregnation method, and their catalytic performances were evaluated in n-octane hydroconversion. Compared to the those modified by the in situ synthesis method, ZSM-5 zeolite-supported catalysts modified by the impregnation method exhibit higher stability and higher isomerization selectivity. This is due to the synergistic effect between Brønsted acid sites and Lewis acid sites on the Ni-modified ZSM-5 zeolites, especially for the NiMo/1Ni-Z5 catalyst.https://www.frontiersin.org/articles/10.3389/fchem.2020.586445/fullnickel modificationZSM-5N-octanehydroconversioncatalyst |
| spellingShingle | Qiang Wei Pengfei Zhang Xiaodong Liu Wenbin Huang Xiayun Fan Yitong Yan Rongxun Zhang Lin Wang Yasong Zhou Synthesis of Ni-Modified ZSM-5 Zeolites and Their Catalytic Performance in n-Octane Hydroconversion Frontiers in Chemistry nickel modification ZSM-5 N-octane hydroconversion catalyst |
| title | Synthesis of Ni-Modified ZSM-5 Zeolites and Their Catalytic Performance in n-Octane Hydroconversion |
| title_full | Synthesis of Ni-Modified ZSM-5 Zeolites and Their Catalytic Performance in n-Octane Hydroconversion |
| title_fullStr | Synthesis of Ni-Modified ZSM-5 Zeolites and Their Catalytic Performance in n-Octane Hydroconversion |
| title_full_unstemmed | Synthesis of Ni-Modified ZSM-5 Zeolites and Their Catalytic Performance in n-Octane Hydroconversion |
| title_short | Synthesis of Ni-Modified ZSM-5 Zeolites and Their Catalytic Performance in n-Octane Hydroconversion |
| title_sort | synthesis of ni modified zsm 5 zeolites and their catalytic performance in n octane hydroconversion |
| topic | nickel modification ZSM-5 N-octane hydroconversion catalyst |
| url | https://www.frontiersin.org/articles/10.3389/fchem.2020.586445/full |
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