Journal
MATTER
Volume 3, Issue 2, Pages 558-570Publisher
CELL PRESS
DOI: 10.1016/j.matt.2020.07.022
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Funding
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB36000000]
- National Key Basic Research Program of China [2016YFA0200700]
- National Natural Science Foundation of China [21890381and 21721002]
- Frontier Science Key Project of Chinese Academy of Sciences [QYZDJ-SSW-SLH038]
- K.C. Wong Education Foundation
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Carboxylation of terminal alkynes with CO2 via direct C-H bond activation is a highly appealing way to capture and convert CO2 but faces great challenges and difficulty. Here, we report an efficient catalyst that is prepared simply through introduction of p-tert-butylaniline into graphite oxide powders followed by localized growth of Ag nanoparticles (NPs). The bulky nature of p-tert-butylaniline facilitates the powder exfoliation, giving rise to mass production of uniform modified graphene oxide (tert-GO) nanosheets of 4 nm in thickness. Notably, Ag/tert-GO shows excellent catalytic activity for converting alkynes regardless of containing electron-donating or electron-withdrawing groups under mild reaction conditions. The synergy of the amide linkages on tert-GO nanosheets and the supported small-sized Ag NPs is recognized as the vital role in promoting adsorption of CO2 and subsequent conversion.
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