Facial reconstruction

Search LJMU Research Online

Browse Repository | Browse E-Theses

Comparison of sizes, morphologies and optical properties of nio nanostructures synthesized using acetate and nitrate anions from nickel salts via hydrothermal method

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

[img]
Preview
Text
NiO at Chiang Mai Journal of Science.pdf - Published Version

Download (372kB) | Preview

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 and Mechanical Engineering
Publisher: Chiang Mai University
Date Deposited: 10 May 2018 10:28
Last Modified: 15 Sep 2018 20:48
URI: http://researchonline.ljmu.ac.uk/id/eprint/8636

Actions (login required)

View Item View Item