화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Materials Research, Vol.24, No.12, 663-670, December, 2014
DOI10.3740/MRSK.2014.24.12.663  Export Citation
전기방사된 주석산화물 나노섬유의 공정 변수에 따른 직경 및 형상 제어 연구
Electrospun Tin Oxide Nanofibers with a Controlled Diameter and Morphology
장대환, 이재은1, 좌용호1, 이영인2, †
  • 고등기술연구원 신소재공정센터
  • 1한양대학교 융합화학공학과
  • 2서울과학기술대학교 신소재공학과
Dae-Hwan Jang, Jae-Eun Lee1, Yong-Ho Choa1, and Young-In Lee2, †
  • Advanced Materials & Processing Center, Institute for Advanced Engineering, Yongin 449-863, Korea
  • 1Department of Fusion Chemical Engineering, Hanyang University, Ansan 426-791, Korea
  • 2Department of Materials Science and Engineering, Seoul National University of Science and Technology, Seoul 139-743, Korea
E-mail:
Diameter-controlled tin oxide nanofibers have been successfully prepared using electrospinning and a subsequent calcination process; their diameters, morphologies, and crystal structures have been characterized. The diameters of the as-spun nanofibers can be decreased by lowering the concentration of a polymer and a tin precursor in the electrospinning solution because of the decrease in the solution viscosity. The crystal structure of the nanofibers calcined at various temperatures from 200 oC to 800 oC has been proved to be the tetragonal rutile of tin oxide; crystallinity is improved by increasing the temperature. However, nanofibers with lower concentrations of tin precursor do not maintain their fibrous structures after calcination at high temperatures. In this study, the effect of the relationship between the precursor concentration and the calcination temperature on the diameter and the morphology of the tin oxide nanofiber has been systematically investigated and discussed.
Keywords:tin oxide;nanofiber;diameter;electrospinning;gas sensor
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