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Kaewmuang, P, Pudkon, W, Prasatkhetragarn, A, Nimmanpipug, P, Kittiwachana, S and Kaowphong, S (2018) Comparison of sizes, morphologies and optical properties of nio nanostructures synthesized using acetate and nitrate anions from nickel salts via hydrothermal method. Chiang Mai Journal of Science, 45 (2). pp. 1122-1128. ISSN 0125-2526
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Abstract
Porous NiO nanocrystals were synthesized using a hydrothermal method in mediums of different anions from nickel salts, acetate (CH 3 COO - ) and nitrate (NO 3 -),followed by calcination at 500 °C. Firstly, β-Ni(OH) 2 powders with a hexagonal structure were formed. Using acetate and nitrate anions, the obtained β-Ni(OH) 2 powders were composed of thin nanosheets (0.8-2.1 μm in length), and a splinter-like structure self-assembled with longer nanosheets (9.8-24.2 μm), respectively. The difference in the interaction ability between the anions and the β-Ni(OH) 2 surfaces, affecting the growth behavior of the crystals, was examined using the density functional theory (DFT) method. After calcination, the β-Ni(OH) 2 turned into porous NiO with a cubic structure but their morphologies were unchanged. The porous NiO with longer nanosheets possessing higher crystallinity and larger surface area provided better UV-Vis absorption ability. © 2018, Chiang Mai University. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 0101 Pure Mathematics |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Maritime & Mechanical Engineering (merged with Engineering 10 Aug 20) |
| Publisher: | Chiang Mai University |
| Date Deposited: | 10 May 2018 10:28 |
| Last Modified: | 04 Sep 2021 02:42 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/8636 |
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