124 0

침전법을 이용한 Indium hydroxide 분말의 합성 연구

Title
침전법을 이용한 Indium hydroxide 분말의 합성 연구
Other Titles
Synthesis of indium hydroxide powders by a precipitation method
Author
심광보
Keywords
ITO; Indium hydroxide; Precipitation method; Indium; Raw material
Issue Date
2017-06
Publisher
한국결정성장학회
Citation
한국결정성장학회지, v. 27, no. 3, page. 122-129
Abstract
고밀도 ITO 타겟 제조를 위해 입자의 크기가 미세하면서도 응집성이 적은 In2O3 분말을 합성해야 한다. 본 실험에서는 In2O3 분말의 특성에 영향을 미치는 전구체 Indium hydroxide 분말의 크기와 형상을 제어하는 것에 목적을 두고있다. 출발 물질로써 Indium metal을 질산(HNO3)과 증류수의 혼합용액에 용해시켜 In(NO3)3 용액을 만들었다. 침전제로 수산화암모늄(NH4OH)을 사용하여 농도, pH, 온도가 Indium hydroxide 특성에 미치는 영향을 분석하였다. X-ray diffraction으로 각 시료의 결정상을 분석하고 Crystallite size를 계산하였으며, TEM으로 입자의 형상과 크기를 분석하였다. 그 결과In(NO3)3 농도가 증가할수록 얻어지는 Indium hydroxide의 입자크기는 증가하였고 일정한 농도의 In(NO3)3 용액에서 침전pH 변화에 따른 Indium hydroxide의 입자크기와 형상의 변화는 관찰되지 않았다. 침전 시 온도가 상승할수록 입자크기는증가하였다. For the production of a high-density ITO target, In2O3 powders with a small particle size and low agglomeration should be synthesized. The purpose of this study is to control the size and shape of the Indium hydroxide precursor which affects the properties of the In2O3 powder. As a starting raw material, Indium metal was dissolved in a Nitric acid (HNO3) solution. The effect of concentration, pH, and temperature on the properties of Indium hydroxide was investigated using ammonium hydroxide as a precipitant. Crystallite size of each sample was analyzed by X-ray diffraction and the shape and the size of the powder was analyzed by transmission electron microscopy. As a result, the particle size of Indium hydroxide was increased with increase in the concentration of In(NO3)3 and the particle size and shape of the Indium hydroxide remained unchanged with increase in the pH of the solution. The particle size increased with increase in the precipitation temperature during precipitation.
URI
http://koreascience.or.kr/article/JAKO201724854119505.pagehttps://repository.hanyang.ac.kr/handle/20.500.11754/114499
ISSN
1225-1429; 2234-5078
DOI
10.6111/JKCGCT.2017.27.3.122
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE