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Moon, Hoi Ri
Functional Inorganic Nanomaterials for Energy Lab (FINE)
Research Interests
  • Inorganic-organic hybrid materials, carbon capture materials, hydrogen storage materials, heterogeneous catalyst

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Crystal-Size Effects on Carbon Dioxide Capture of a Covalently Alkylamine-Tethered Metal-Organic Framework Constructed by a One-Step Self-Assembly

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Title
Crystal-Size Effects on Carbon Dioxide Capture of a Covalently Alkylamine-Tethered Metal-Organic Framework Constructed by a One-Step Self-Assembly
Author
Kim, Yun KyeongHyun, Sung-minLee, Jae HwaKim, Tae KyungMoon, DohyunMoon, Hoi Ri
Issue Date
201601
Publisher
NATURE PUBLISHING GROUP
Citation
SCIENTIFIC REPORTS, v.6, no., pp.19337 -
Abstract
To enhance the carbon dioxide (CO2) uptake of metal-organic frameworks (MOFs), amine functionalization of their pore surfaces has been studied extensively. In general, amine-functionalized MOFs have been synthesized via post-synthetic modifications. Herein, we introduce a one-step construction of a MOF ([(NiLethylamine)(BPDC)]=MOFNH2; [NiLethylamine]2+=[Ni(C12H32N8)]2+; BPDC2-=4,4′-biphenyldicarboxylate) possessing covalently tethered alkylamine groups without post-synthetic modification. Two-amine groups per metal centre were introduced by this method. MOFNH2 showed enhanced CO2 uptake at elevated temperatures, attributed to active chemical interactions between the amine groups and the CO2 molecules. Due to the narrow channels of MOFNH2, the accessibility to the channel of CO2 is the limiting factor in its sorption behaviour. In this context, only crystal size reduction of MOFNH2 led to much faster and greater CO2 uptake at low pressures. © 2016, Nature Publishing Group. All rights reserved
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DOI
http://dx.doi.org/10.1038/srep19337
ISSN
2045-2322
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SNS_Journal Papers
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