Efficient hybrid-type CO2 adsorbents of reassembled layered double hydroxide 2D nanosheets with polyoxometalate 0D nanoclusters
Date
2015
Authors
Gunjakar, J.L.
Kim, I.Y.
Hwang, S.J.
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Journal article
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European Journal of Inorganic Chemistry, 2015; 2015(7):1198-1202
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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.
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Data source: Supporting information, http://onlinelibrary.wiley.com/doi/10.1002/ejic.201402480/abstract?systemMessage=Wiley+Online+Library+Journal+subscribe+and+renew+pages+for+some+journals+will+be+unavailable+on+Wednesday+11th+January+2017+from+06%3A00-12%3A00+GMT+%2F+01%3A00-07%3A00+EST+%2F+14%3A00-20%3A00+SGT+for+essential+maintenance.+Apologies+for+the+inconvenience#footer-support-info
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Copyright 2015 WILEY-VCH Verlag