Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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Effects of Flame Temperature on the Characteristics of Flame Synthesized $TiO_{2}$ Nanoparticles

화염온도에 따른 $TiO_{2}$ 나노입자의 결정구조 및 입자크기 변화

  • 이교우 (한국과학기술연구원(KIST) 대기자원연구센터) ;
  • 정종수 (한국과학기술연구원(KIST) 대기자원연구센터) ;
  • 배귀남 (한국과학기술연구원(KIST) 대기자원연구센터)
  • Published : 2004.11.03
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Abstract

In this work, $TiO_{2}$ nanoparticles were synthesized using a $N_{2}-diluted$ hydrogen coflow diffusion flame. The effect of flame temperature on the crystalline structure and the size of formed nanoparticles was investigated. The maximum centerline temperature of the flame ranged from 1,920K for $H_{2}-only$ flame to 863K for 81% $N_{2}-diluted$ flame. When the temperature was higher than about 1,000K, the particle size was tend to increase due to the agglomeration and sintering among the primary particles. On the other hand, when the temperature was lower than 1,000K, the portion of anatase phase was greater than 80%.

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