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Joo, Sang Hoon
Nanomaterials & Catalysis Lab
Research Interests
  • Catalyst, energy conversion, fuel cells, electrolyzer, ORR, HER, OER

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Nanoporous metal oxides with tunable and nanocrystalline frameworks via conversion of metal-organic frameworks

Cited 32 times inthomson ciCited 18 times inthomson ci
Title
Nanoporous metal oxides with tunable and nanocrystalline frameworks via conversion of metal-organic frameworks
Author
Kim, Tae KyungLee, Kyung JooCheon, Jae YeongLee, Jae HwaJoo, Sang HoonMoon, Hoi Ri
Keywords
Adsorption capacities; Aliphatic ligands; Energy conversion and storages; Experimental parameters; Inert atmospheres; Metal organic framework; Nano-porous materials; Synthetic strategies
Issue Date
201306
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.135, no.24, pp.8940 - 8946
Abstract
Nanoporous metal oxide materials are ubiquitous in the material sciences because of their numerous potential applications in various areas, including adsorption, catalysis, energy conversion and storage, optoelectronics, and drug delivery. While synthetic strategies for the preparation of siliceous nanoporous materials are well-established, nonsiliceous metal oxide-based nanoporous materials still present challenges. Herein, we report a novel synthetic strategy that exploits a metal-organic framework (MOF)-driven, self-templated route toward nanoporous metal oxides via thermolysis under inert atmosphere. In this approach, an aliphatic ligand-based MOF is thermally converted to nanoporous metal oxides with highly nanocrystalline frameworks, in which aliphatic ligands act as the self-templates that are afterward evaporated to generate nanopores. We demonstrate this concept with hierarchically nanoporous magnesia (MgO) and ceria (CeO2), which have potential applicability for adsorption, catalysis, and energy storage. The pore size of these nanoporous metal oxides can be readily tuned by simple control of experimental parameters. Significantly, nanoporous MgO exhibits exceptional CO2 adsorption capacity (9.2 wt %) under conditions mimicking flue gas. This MOF-driven strategy can be expanded to other nanoporous monometallic and multimetallic oxides with a multitude of potential applications.
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DOI
http://dx.doi.org/10.1021/ja401869h
ISSN
0002-7863
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SNS_Journal Papers
ECHE_Journal Papers

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