Liberating N‐CNTs Confined Highly Dispersed CoNx Sites for Selective Hydrogenation of Quinolines

Selective hydrogenation of quinoline and its derivatives is an important means to produce corresponding 1,2,3,4‐tetrahydroquinolines for a wide spectrum of applications. A facile and efficient “laser irradiation in liquid” technique to liberate the inaccessible highly dispersed CoNx active sites co...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2019-12, Vol.31 (49), p.e1906051-n/a
Main Authors: Gong, Wanbing, Yuan, Qinglin, Chen, Chun, Lv, Yang, Lin, Yue, Liang, Changhao, Wang, Guozhong, Zhang, Haimin, Zhao, Huijun
Format: Article
Language:English
Subjects:
Carbon nanotubes
Chemical industry
confined single atoms
CoNx
Derivatives
Dispersion
Hydrogenation
Irradiation
laser irradiation
Materials science
Organic compounds
Quinoline
selective hydrogenation
Selectivity
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Summary:Selective hydrogenation of quinoline and its derivatives is an important means to produce corresponding 1,2,3,4‐tetrahydroquinolines for a wide spectrum of applications. A facile and efficient “laser irradiation in liquid” technique to liberate the inaccessible highly dispersed CoNx active sites confined inside N‐doped carbon nanotubes is demonstrated. The liberated CoNx sites possess generic catalytic activities toward selective hydrogenation of quinoline and its hydroxyl, methyl, and halogen substituted derivatives into corresponding 1,2,3,4‐tetrahydroquinolines with almost 100% conversion efficiency and selectivity. This laser irradiation treatment approach should be widely applicable to unlock the catalytic powers of inaccessible catalytic active sites confined by other materials. A “laser irradiation in liquid” technique is innovatively utilized to liberate the abundant highly dispersed single‐atom CoNx sites confined inside carbon nanotubes. They can be used as a high‐performance selective hydrogenation catalyst to convert quinoline and its derivatives into value‐added fine chemicals.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201906051