Efficient hybrid-type CO2 adsorbents of reassembled layered double hydroxide 2D nanosheets with polyoxometalate 0D nanoclusters

Jayavant L. Gunjakar, In Young Kim, Seong Ju Hwang

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16 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1198-1202
Number of pages5
JournalEuropean Journal of Inorganic Chemistry
Volume2015
Issue number7
DOIs
Publication statusPublished - 2015 Mar

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All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

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