Liberating N‐CNTs Confined Highly Dispersed CoNx Sites for Selective Hydrogenation of Quinolines. Issue 49 (17th October 2019)

• Record Type: Journal Article
• Authors: Gong, Wanbing; Yuan, Qinglin; Chen, Chun; Lv, Yang; Lin, Yue; Liang, Changhao; Wang, Guozhong; Zhang, Haimin; Zhao, Huijun
• Is Part Of: Advanced materials. Volume 31:Issue 49(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-10-17
• Subjects: confined single atoms -- CoNx -- laser irradiation -- quinoline -- selective hydrogenation; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201906051
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract: 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N x active sites confined inside N‐doped carbon nanotubes is demonstrated. The liberated CoN x 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. Abstract : A "laser irradiation in liquid" technique is innovatively utilized to liberate the abundant highly dispersed single‐atom CoN x 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.