1. Nanoflower, nanoplatelet and nanocapsule Mg(OH) powders for adsorption of CO gas.
- Author
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Chanda, Dipak, Samanta, Aniruddha, Dey, Arjun, Das, Pradip, and Mukhopadhyay, Anoop
- Subjects
- *
CARBON monoxide , *ADSORPTION (Chemistry) , *NANOCAPSULES , *MAGNESIUM hydroxide , *CHEMICAL synthesis , *MOLECULAR self-assembly - Abstract
The soft chemical synthesis of self-assembled magnesium hydroxide (Mg(OH)) nanoplatelets with surface area as high as about 300 m g was achieved in the present work. The nanopowders such as MH, MH, MH were synthesized at ~30 °C without using any catalyst or surfactant using, respectively, precursor solutions of Mg(NO), MgCl, MgBr and characterized by XRD, BET surface area, BJH pore size analysis, FTIR, FE-SEM, TEM and EDX techniques. It was found that the MH and MH nanopowders comprised of nanoflowers formed by self-assembly of nanoplatelets and porous nanoplatelets, while the MH nanopowders comprised of a random assembly of nanocapsules. The powders possessed the technologically important quality of reproducible CO adsorption at room temperature and its desorption at a relatively lower temperature of 75 °C. Based on the experimental evidences, the mechanisms of various microstructure formations and CO adsorption mechanism were also proposed. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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