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Efficient Hybrid-Type CO2 Adsorbents of Reassembled Layered Double Hydroxide 2D Nanosheets with Polyoxometalate 0D Nanoclusters

Title
Efficient Hybrid-Type CO2 Adsorbents of Reassembled Layered Double Hydroxide 2D Nanosheets with Polyoxometalate 0D Nanoclusters
Authors
Gunjakar, Jayavant L.Kim, In YoungHwang, Seong-Ju
Ewha Authors
황성주Gunjakar Jayavant Laxman
SCOPUS Author ID
황성주scopus; Gunjakar Jayavant Laxmanscopus
Issue Date
2015
Journal Title
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
ISSN
1434-1948JCR Link1099-0682JCR Link
Citation
no. 7, pp. 1198 - 1202
Keywords
Mesoporous materialsNanostructuresAdsorptionSelf-assemblyCarbon dioxide fixation
Publisher
WILEY-V C H VERLAG GMBH
Indexed
SCI; SCIE; SCOPUS WOS
Abstract
Porous nanohybrids of cationic Mg-Al-LDH 2D nanosheets and anionic polyoxometalate (POM, V10O286- and W7O246-) 0D nanoclusters are synthesized by an exfoliation-reassembling process. The electrostatically derived reassembling between two kinds of nanostructures yields a layer-by-layer-ordered intercalation structure with porous structures composed of mesopores and micropores. The hybridization with POM leads to the remarkable enhancement of CO2 adsorption capacity (adsorptivity) of Mg-Al-LDH by about 10-fold. Of prime importance is that the CO2 adsorptivity of the nanohybrid is strongly dependent on the type of guest POM species, strongly suggesting that the CO2 adsorptivity of the LDH-based nanohybrid materials can be optimized by ones selection of guest species. The present study clearly demonstrates that the exfoliation-reassembling method is quite effective at enabling synthesis of new LDH nanosheet-based hybrid materials with improved CO2 adsorption capabilities.
DOI
10.1002/ejic.201402480
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자연과학대학 > 화학·나노과학전공 > Journal papers
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