Preparation and gas-sensing property of parallel-aligned ZnO nanofibrous films

Bulletin of materials science

Shunping Zhang¹  Zikui Bai³  Jie Xu²  Weilin Xu²  Shili Xiao²  Changsheng Xie¹  Mingchao Dong⁴ 

[1] State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, P.R. China$$State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, P.R. ChinaState Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, P.R. China$$;Key Lab for Green Processing and Functionalization of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, P.R. China$$Key Lab for Green Processing and Functionalization of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, P.R. ChinaKey Lab for Green Processing and Functionalization of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, P.R. China$$;Key Lab for Green Processing and Functionalization of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, P.R. China$$Zhuxi County Environmental Protection Agency, Shiyan 442300, P.R. China$$Key Lab for Green Processing and Functionalization of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, P.R. ChinaKey Lab for Green Processing and Functionalization of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, P.R. China$$Zhuxi County Environmental Protection Agency, Shiyan 442300, P.R. China$$Zhuxi County Environmental Protection Agency, Shiyan 442300, P.R. ChinaKey Lab for Green Processing and Functionalization of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, P.R. China$$Zhuxi County Environmental Protection Agency, Shiyan 442300, P.R. China$$;Zhuxi County Environmental Protection Agency, Shiyan 442300, P.R. China$$Zhuxi County Environmental Protection Agency, Shiyan 442300, P.R. ChinaZhuxi County Environmental Protection Agency, Shiyan 442300, P.R. China$$

关键词: ZnO;    parallel-aligned nanofibrous film;    electrospinning;    sensing characteristics.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Parallel-aligned zinc oxide (ZnO) nanofibrous films fabricated by using electrospinning technique were used in gas sensors for the detection of ethanol and formaldehyde. The morphologies and crystal structures of the films were characterized by field-emission scanning electron microscopy (FE�?�SEM) and X-ray diffraction (XRD), respectively. FE�?�SEM results showed that ZnO nanofibres had an approximate diameter of 100�??300 nm and consisted of hexagonal wurtzite structure ZnO nanocrystals with a primary particle diameter of 20�??50 nm. The results of resistance�?�temperature characteristics and responses to ethanol and formaldehyde indicated that the parallelaligned ZnO nanofibrous film had a low activation energy (0.246 eV), a low optimum operating temperature and a high response. The response and recovery had a high rate in the initial stage and a low rate in the later stage. The parallel-aligned ZnO nanofibrous film had excellent potential application for formaldehyde sensor.

【 授权许可】

Unknown