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Porous Aromatic Framework Nanosheets Anchored with Lewis Pairs for Efficient and Recyclable Heterogeneous Catalysis.
Meng, Qinghao; Huang, Yihan; Deng, Dan; Yang, Yajie; Sha, Haoyan; Zou, Xiaoqin; Faller, Roland; Yuan, Ye; Zhu, Guangshan.
Afiliação
  • Meng Q; Key Laboratory of Polyoxometalate Science of Ministry of Education Northeast Normal University Renmin Avenue Changchun 130024 China.
  • Huang Y; Department of Materials Science and Engineering University of California Davis Davis CA 95616 USA.
  • Deng D; Key Laboratory of Polyoxometalate Science of Ministry of Education Northeast Normal University Renmin Avenue Changchun 130024 China.
  • Yang Y; Key Laboratory of Polyoxometalate Science of Ministry of Education Northeast Normal University Renmin Avenue Changchun 130024 China.
  • Sha H; Department of Chemical Engineering University of California Davis Davis CA 95616 USA.
  • Zou X; Key Laboratory of Polyoxometalate Science of Ministry of Education Northeast Normal University Renmin Avenue Changchun 130024 China.
  • Faller R; Department of Chemical Engineering University of California Davis Davis CA 95616 USA.
  • Yuan Y; Key Laboratory of Polyoxometalate Science of Ministry of Education Northeast Normal University Renmin Avenue Changchun 130024 China.
  • Zhu G; Key Laboratory of Polyoxometalate Science of Ministry of Education Northeast Normal University Renmin Avenue Changchun 130024 China.
Adv Sci (Weinh) ; 7(22): 2000067, 2020 Nov.
Article em En | MEDLINE | ID: mdl-33240750
ABSTRACT
Lewis pairs (LPs) with outstanding performance for nonmetal-mediated catalysis reactions have high fundamental interest and remarkable application prospects. However, their solubility characteristics lead to instability and deactivation upon recycling. Here, the layered porous aromatic framework (PAF-6), featuring two kinds of Lewis base sites (NPiperazine and NTriazine), is exfoliated into few-layer nanosheets to form the LP entity with the Lewis acid. After comparison with various porous networks and verification by density functional theory (DFT) calculations, the NTriazine atom in the specific spatial environment is determined to preferably coordinate with the electron-deficient boron compound in a sterically hindered pattern. LP-bare porous product displays high catalytic activity for the hydrogenation of both olefin and imine compounds, and demonstrates ≈100% activity after 10 successful cycles in hydrogenation reactions. Considering the natural advantage of porous organic frameworks to construct LP groups opens up novel prospects for preparing other nonmetallic heterogeneous catalysts for efficient and recyclable catalysis.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Ano de publicação: 2020 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Ano de publicação: 2020 Tipo de documento: Article