한국재료학회지 (Korean Journal of Materials Research)

  • 제13권4호
  • /
  • Pages.219-223
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  • 2003
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  • 1225-0562(pISSN)
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  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
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졸-겔법에 의한 Au 미립자 분산 ZrO2 겔의 합성

Synthesis of ZrO2 Gel Dispersed with Au Fine Particles by Sol-Gel Method

  • 문종수 (경남대학교 신소재공학부) ;
  • 이승민 (경남대학교 신소재공학부)
  • Mun, Chong-Soo (Division of Advanced Materials Engineering Kyungnam University) ;
  • Lee, Seung-Min (Division of Advanced Materials Engineering Kyungnam University)
  • 발행 : 2003.04.01
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초록

Zirconia gels dispersed with fine Au particles have been prepared by the sol-gel method. Starting solution with (OC$Zr_4$$H_{ 9}$)$_4$, $C_4$ $H_{9}$ OH, $H_2$O,$ HNO_3$, $HAuC1_4$ was used to prepare gels in several molar ratio. After hydrolysis, viscosity of solutions as 4∼5 cP and gelling time of sols were spent about 9 days. As the heat-treatment temperature was increased,$ ZrO_2$ had the phase transition from tetragonal to monoclinic at $750^{\circ}C$. Heat-treatments of the gel have performed at 500, 700, 750, 800, 1000 and $1100^{\circ}C$ for 3 hrs, respectively. We have investigated TG-DTA, X-ray diffraction patterns, SEM and EDS. The size of Au fine particles dispersed in the heat-treatmented gel was about 0.15∼0.23 $\mu\textrm{m}$ and the shape was most sphericity.

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참고문헌

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