화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Materials Research, Vol.30, No.7, 376-382, July, 2020
DOI10.3740/MRSK.2020.30.7.376  Export Citation
용매열 공정을 이용한 세리아(CeO2) 나노분말의 합성 및 분산거동
Synthesis and Dispersion of Ceria(CeO2) Nanoparticles by Solvothermal Process
임태섭, 옥지영, 최연빈, 김봉구, 손정훈, 정연길†
  • 창원대학교 신소재공학과
Tae Seop Lim, Ji Young Ock, Yeon Bin Choi, Bong Gu Kim, Jeong Hun Son, and Yeon Gil Jung†
  • School of Nano & Advanced Materials Eng., Changwon National Univ., Changwon, Republic of Korea
E-mail:
CeO2 nanoparticles, employed in a lot of fields due to their excellent oxidation and reduction properties, are synthesized through a solvothermal process, and a high specific surface area is shown by controlling, among various process parameters in the solvothermal process, the type of solvent. The synthesized CeO2 nanoparticles are about 11~13 nm in the crystallite size and their specific surface area is about 65.38~84.65 m2/g, depending on the amount of ethanol contained in the solvent for the solvothermal process; all synthesized CeO2 nanoparticles shows a fluorite structure. The dispersibility and microstructure of the synthesized CeO2 nanoparticles are investigated according to the species of dispersant and the pH value of the solution; an improvement in dispersibility is shown with the addition of dispersants and control of the pH. Various dispersing properties appear according to the dispersant species and pH in the solution with the synthesized CeO2 nanoparticles, indicating that improved dispersing properties in the synthesized CeO2 nanoparticles can be secured by applying dispersant and pH control simultaneously.
Keywords:ceria(CeO2);nanoparticles;solvothermal process;dispersion
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