Enhancing catalytic performance via structure core-shell metal-organic frameworks

Yanyan Gong, Ye Yuan, Cheng Chen, Pan Zhang, Jichao Wang, Anish Khan, Serge Zhuiykov, Somboon Chaemchuen, Francis Verpoort

Результат исследований: Материалы для журналаСтатья

Выдержка

A core-shell structure metal-organic framework based on the Zr clusters bridging with BDC linkers (UiO-66) as a core-structure and BPYDC linkers (UiO-67-BPY) as a shell-structure was developed (UiO-67-BPY@UiO-66). The combination of several techniques such as XRD, FTIR, SEM, TEM, and surface area analysis etc. were applied for the characterization and confirmed a core-shell structure of UiO-67-BPY@UiO-66. Taking advantage of the high porous stability of the core-structure (UiO-66) and the presence of active Lewis basic sites from the bipyridinic linker in the shell layer (UiO-67-BPY) could be advantageous for basic-catalyzed reactions. The synthesized core-shell material was applied as a heterogeneous catalyst for the Knoevenagel condensation as a model reaction. An excellent catalytic performance was obtained by the core-shell material over traditional MOFs and other previous reports based on MOFs. The excellent dispersion of the active sites (Lewis basic) in the outer layer of the designed core-shell structure was a breakthrough to prevent mass diffusion limitation during catalysis. Additionally, the catalyst can be recycled and maintained its high catalytic performance at least for four cycles.

Язык оригиналаАнглийский
Страницы (с-по)371-379
Число страниц9
ЖурналJournal of Catalysis
Том375
DOI
СостояниеОпубликовано - 1 июл 2019

Отпечаток

metal shells
Metals
Catalysts
Catalysis
Condensation
Transmission electron microscopy
Scanning electron microscopy
catalysts
catalysis
condensation
transmission electron microscopy
cycles
scanning electron microscopy

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Цитировать

Enhancing catalytic performance via structure core-shell metal-organic frameworks. / Gong, Yanyan; Yuan, Ye; Chen, Cheng; Zhang, Pan; Wang, Jichao; Khan, Anish; Zhuiykov, Serge; Chaemchuen, Somboon; Verpoort, Francis.

В: Journal of Catalysis, Том 375, 01.07.2019, стр. 371-379.

Результат исследований: Материалы для журналаСтатья

Gong, Y, Yuan, Y, Chen, C, Zhang, P, Wang, J, Khan, A, Zhuiykov, S, Chaemchuen, S & Verpoort, F 2019, 'Enhancing catalytic performance via structure core-shell metal-organic frameworks', Journal of Catalysis, том. 375, стр. 371-379. https://doi.org/10.1016/j.jcat.2019.06.031
Gong Y, Yuan Y, Chen C, Zhang P, Wang J, Khan A и соавт. Enhancing catalytic performance via structure core-shell metal-organic frameworks. Journal of Catalysis. 2019 Июль 1;375:371-379. https://doi.org/10.1016/j.jcat.2019.06.031
Gong, Yanyan ; Yuan, Ye ; Chen, Cheng ; Zhang, Pan ; Wang, Jichao ; Khan, Anish ; Zhuiykov, Serge ; Chaemchuen, Somboon ; Verpoort, Francis. / Enhancing catalytic performance via structure core-shell metal-organic frameworks. В: Journal of Catalysis. 2019 ; Том 375. стр. 371-379.
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AU - Zhuiykov, Serge

AU - Chaemchuen, Somboon

AU - Verpoort, Francis

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