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Nanoflower, nanoplatelet and nanocapsule Mg(OH)(2) powders for adsorption of CO2 gas

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Nanoflower, nanoplatelet and nanocapsule Mg(OH)(2) powders for adsorption of CO2 gas
 
Creator Chanda, Dipak Kr
Samanta, Aniruddha
Dey, Arjun
Das, Pradip Sekhar
Mukhopadhyay, Anoop Kumar
 
Subject Engineering Materials
 
Description The soft chemical synthesis of self-assembled magnesium hydroxide (Mg(OH)(2)) nanoplatelets with surface area as high as about 300 m(2) g(-1) was achieved in the present work. The nanopowders such as MHN, MHCl, MHBr were synthesized at similar to 30 A degrees C without using any catalyst or surfactant using, respectively, precursor solutions of Mg(NO3)(2), MgCl2, MgBr2 and characterized by XRD, BET surface area, BJH pore size analysis, FTIR, FE-SEM, TEM and EDX techniques. It was found that the MHN and MHCl nanopowders comprised of nanoflowers formed by self-assembly of nanoplatelets and porous nanoplatelets, while the MHBr nanopowders comprised of a random assembly of nanocapsules. The powders possessed the technologically important quality of reproducible CO2 adsorption at room temperature and its desorption at a relatively lower temperature of 75 A degrees C. Based on the experimental evidences, the mechanisms of various microstructure formations and CO2 adsorption mechanism were also proposed.
 
Publisher Springer
 
Date 2017-05
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cgcri.csircentral.net/4003/1/anoop.pdf
Chanda, Dipak Kr and Samanta, Aniruddha and Dey, Arjun and Das, Pradip Sekhar and Mukhopadhyay, Anoop Kumar (2017) Nanoflower, nanoplatelet and nanocapsule Mg(OH)(2) powders for adsorption of CO2 gas. Journal of Materials Science, 52 (9). pp. 4910-4922. ISSN 0022-2461
 
Relation http://cgcri.csircentral.net/4003/