Catalysis science and technology p. 3726 - 3734 (2019)
Update date:2022-08-11
Topics:
Li, Jiayi
Wang, Bowei
Qin, Yutian
Tao, Qin
Chen, Ligong
MOF-derived catalysts with nickel nanoparticles (NPs) uniformly embedded in nitrogen doped carbon shells were developed by pyrolysis of nickel-based metal-organic frameworks (MOFs), in which amino groups were introduced to act as the nitrogen source and possible anchoring sites for Ni NPs. The resulting materials were characterized systematically. In the architecture of the catalysts, a core-shell structure was discovered, in which Ni NPs with a diameter of 6-7 nm were surrounded by N doped graphitic layers, indicating that the introduction of amino groups into precursors is beneficial to the dispersion of NPs. One-step hydrogenation and reductive amination (OHRA) is a promising route to produce secondary amines, which avoids tedious separation of intermediates. Accordingly, we applied the prepared composites as catalysts to OHRA of benzaldehyde with nitrobenzene. Among them, the catalyst pyrolyzed at 600 °C for 1.5 h exhibited the best catalytic performance (conversion: >99%, selectivity for N-benzylaniline: 97.96%) and excellent recyclability. N-doping remarkably promotes the dispersion and stability of Ni NPs, thus improving their catalytic activity and selectivity. Furthermore, the Ni-N species as well as synergism of Ni NPs and adjacent pyridinic N may also facilitate the activation of H2. And its excellent stability and recyclability can be attributed to the core-shell structure. The achieved success in MOF-derived nanocomposites may pave the way for further industrial applications.
View MoreFeiyang Biotechnology Co., Ltd.
Contact:+86-533-7866339
Address:Qilu Chemistry Park, 200m north of Management Community Building of Park
Shaanxi King Stone Enterprise Company Limited
Contact:86-29-88353805,13609285751
Address:.209 Keji Road Hi-Tech industrial Develpment Zone .Xian China
BAODING SINO-CHEM INDUSTRY CO.,LTD
Contact:0312-5956088
Address:NO.8 FUXING ROAD,CHINA
TIANJIN DONGRUXIANG MINERALS MARKETING CO.,LTD(expird)
Contact:22-58516360
Address:tianjin
Taizhou Elitechemie MediPharma Technology Co.,Ltd.
Contact:+86-523-86810021
Address:Building G14,NO.1 Avenue,China Medical City, Taizhou, Jiangsu,China
Doi:10.1021/jf049687n
(2004)Doi:10.1007/s10562-018-2567-1
(2018)Doi:10.1006/jcat.1997.1742
(1997)Doi:10.1023/A:1015631603235
(2001)Doi:10.1074/jbc.M112.351809
(2012)Doi:10.1039/c6cy01669c
(2017)