연구단계 | 1단계 :1년차 | ||
논문제목(영문) | Selective ethanol gas sensing behavior of mesoporous n-type semiconducting FeNbO4 nanopowder obtained by niobium–citrate process | ||
국내외구분 | 국외 | SCI여부 | SCI |
연구책임자역활 | 교신저자 | 논문기여율 | 30% |
주저자명 | Balamurugan C | ||
교신저자명 | Lee DW | ||
공동저자명 | Maheswari AR, Subramania A | ||
게제년월일 | 2014-03-01 | ||
ISSN | 1567-1739 | ||
Impact Factor | 2.026 | ||
학술지명 | Current Applied Physics | ||
서지사항 | 0집 / 14권 / 3호, 페이지(439 - 446) | ||
병기표기 | 단독 | ||
Acknowledgement 기재여부 |
예
※ Acknowledgement가 기재된 논문만 연구과제의 성과로 인정. - 국문 표기 : "본 연구는 보건복지부 보건의료연구개발사업의 지원에 의하여 이루어진 것임. (HI13C1527)" - 영문 표기 : "This study was supported by a grant of the Korean Health Technology R&D Project, (HI13C1527) Ministry of Health & Welfare, Republic of Korea. " |
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요약초록문 (Abstract) 입력 |
Beyond the most investigated mesoporous silica and carbon based materials, metal oxides have attracted considerable interest due to their more diverse electronic functionality, which includes gas sensing activities, semiconductor characteristics and magnetic properties. In this paper, we describe the fabrication, characterization and application of mesoporous FeNbO4 nanopowder for ethanol gas sensing application. FeNbO4 nanopowder was synthesized via the niobium–citrate complex method, without using any surfactant and size selection medium. Thermal stability and structure of the nanopowder was analyzed by thermogravimetric analysis (TG/DTA) and X-ray diffraction analysis (XRD). Structural analysis confirmed the formation of FeNbO4 with monoclinic structure. The particle size, electrical and optical properties were also systemically investigated by means of transmission electron microscopy (TEM), impedance and diffused reflectance spectra. Nitrogen adsorption isotherms of the FeNbO4 were type IV with hysteresis loops of type H3 indicating well-defined pore structure with mesoporous nature. The sensing characteristics of FeNbO4 nanopowder such as sensitivity, operating temperature and response time, were studied in the presence of ethanol (C2H5OH). Experimental result confirmed that a higher response to ethanol at relatively lower operating temperature of 200 °C. |
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