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dc.contributor.authorPranwadee Kaewmuangen_US
dc.contributor.authorWatcharapong Pudkonen_US
dc.contributor.authorAnurak Prasatkhetragarnen_US
dc.contributor.authorPiyarat Nimmanpipugen_US
dc.contributor.authorSila Kittiwachanaen_US
dc.contributor.authorSulawan Kaowphongen_US
dc.description.abstractPorous NiO nanocrystals were synthesized using a hydrothermal method in mediums of different anions from nickel salts, acetate (CH3COO-) and nitrate (NO3-),followed by calcination at 500 °C. Firstly, b-Ni(OH)2 powders with a hexagonal structure were formed. Using acetate and nitrate anions, the obtained b-Ni(OH)2 powders were composed of thin nanosheets (0.8-2.1 mm in length), and a splinter-like structure self-assembled with longer nanosheets (9.8-24.2 mm), respectively. The difference in the interaction ability between the anions and the b-Ni(OH)2 surfaces, affecting the growth behavior of the crystals, was examined using the density functional theory (DFT) method. After calcination, the b-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.en_US
dc.publisherScience Faculty of Chiang Mai Universityen_US
dc.titleComparison of Sizes, Morphologies and Optical Properties of NiO Nanostructures Synthesized Using Acetate and Nitrate Anions from Nickel Salts via Hydrothermal Methoden_US
article.title.sourcetitleChiang Mai Journal of Scienceen_US
article.volume45en_US of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.en_US of Materials Science, School of Science, University of Phayao, Phayao 56000, Thailand.en_US
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