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Baek, Jong-Beom
Center for Dimension-Controllable Organic Frameworks
Research Interests
  • Covalent Organic Frameworks (COFs), Carbon Nanotubes(CNTs), graphene, Energy Conversion and Storage

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Extreme Enhancement of Carbon Hydrogasification via Mechanochemistry

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Title
Extreme Enhancement of Carbon Hydrogasification via Mechanochemistry
Author
Han, Gao-FengZhang, PengScholzen, PascalNoh, Hyuk-JunYang, MihyunKweon, Do HyungJeon, Jong-PilKim, Young HyunKim, Seong-WookHan, Sun-PhilAndreev, Andrey S.Lang, GuillaumeIhm, KyuwookLi, Fengde Lacaillerie, Jean-Baptiste D'EspinoseBaek, Jong-Beom
Issue Date
2022-04
Publisher
John Wiley & Sons Ltd.
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.61, no.18, pp.e202117851
Abstract
Carbon hydrogasification is the slowest reaction among all carbon-involved small-molecule transformations. Here, we demonstrate a mechanochemical method that results in both a faster reaction rate and a new synthesis route. The reaction rate was dramatically enhanced by up to 4 orders of magnitude compared to the traditional thermal method. Simultaneously, the reaction exhibited very high selectivity (99.8 % CH4, versus 80 % under thermal conditions) with a cobalt catalyst. Our study demonstrated that this extreme increase in reaction rate originates from the continuous activation of reactive carbon species via mechanochemistry. The high selectivity is intimately related to the activation at low temperature, at which higher hydrocarbons are difficult to form. This work is expected to advance studies of carbon hydrogasification, and other solid-gas reactions.
URI
https://scholarworks.unist.ac.kr/handle/201301/57670
URL
https://onlinelibrary.wiley.com/doi/10.1002/anie.202117851
DOI
10.1002/anie.202117851
ISSN
1433-7851
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