Local electronic structure investigation of the sol-gel processed calcium hydroxide material

Title
Local electronic structure investigation of the sol-gel processed calcium hydroxide material
Authors
임원철채근화원성옥김소희씽 지텐드라
Keywords
Nanoparticles; microscopy; crystal structure; X-ray absorption spectroscopy
Issue Date
2018-06
Publisher
Advanced Materials Proceedings
Citation
VOL 3, NO 6-381
Abstract
In the present work, we have reported the synthesis of calcium hydroxide from calcium nitrate. Synthesized nanoparticles were characterized using X-ray diffraction, scanning electron micrographs, and near edge X-ray absorption fine structure measurements. Synthesized nanoparticles exhibit tetragonal phase with space group P3m1. These nanoparticles exhibit almost spherical shape. Particle size of these nanoparticles are 55 nm and 69 nm for two different treatment of precursor. Microscopic studies shows that size distribution is affected by the change of thermal history. Local electronic structure measured at Ca (L- & K-) and O K-edges exhibit presence of spectral features that are characteristics of calcium hydroxide. Moreover, strength and magnitude of crystal field parameter is unaffected by thermal treatment utilized for synthesis of these materials.
URI
http://pubs.kist.re.kr/handle/201004/67940
ISSN
2002-4428
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KIST Publication > Article
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