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학술지 Structure and CO Gas Sensing Properties of Electrospun TiO2 Nanofibers
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저자
박진아, 문제현, 이수재, 김성현, 정태형, 추혜용
발행일
201002
출처
Materials Letters, v.64 no.3, pp.255-257
ISSN
0167-577X
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.matlet.2009.10.052
협약과제
09ZH1300, ETRI 연구역량 강화를 위한 R&D체계 구축 및 Seed형 기술개발을 위한 창의형 연구 사업, 현창희
초록
Titanium dioxide (TiO2) nanofibers were fabricated by electrospinning a hybrid solution, which is a mixture of the TiO2 sol precursor, polymer, and solvent. The structure and gas sensing properties of TiO2 nanofibers were investigated. By calcining at 600 °C, the polymeric components were decomposed and a multi-layered random network structure of TiO2 nanofibers was obtained. Polycrystalline TiO2 nanofibers consist of tetragonal anatase and rutile TiO2 phases. The diameter ranged from 400 nm to 500 nm and the grain size was about 15 nm. The TiO2 nanofibers-based sensor exhibited response to CO concentration as low as 1 ppm at 200 °C. © 2009 Elsevier B.V. All rights reserved.
키워드
CO, Nanofiber, Nanomaterials, Semiconductors, Sensors, TiO 2
KSP 제안 키워드
5 nm, Anatase and rutile, CO concentration, CO gas sensing, Electrospun TiO2 nanofibers, Gas sensing properties, Grain size, network structure, random network, titanium dioxide