Thin Film Assembly of Gold Nanoparticles for Vapor Sensing via Droplet Interfacial Reaction
查看参考文献23篇
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文摘
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A facile approach to prepare a thin film vapor sensor is demonstrated through droplet interfacial reaction on an IDA microelectrode. Scanning electron microscopy, atomic force microscopy and transmission electron microscopy analyses show that the film of the vapor sensor is composed of self-assembled gold nanocrystals in an average diameter of about 4.3 nm. The as-prepared sensor was examined by potential step method and impedance measurement, which exhibited significant ?R/R_i responses and excellent cycle performance to the volatile organic compound (VOC) vapors of acetone, methanol, styrene, benzene, toluene and ethanol. The selectivity to the VOCs with benzene ring or organic solvents suggests that the sensor is probably in line with the swelling and dielectric sensing mechanisms. |
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来源
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Journal of Materials Science & Technology
,2013,29(5):401-405 【核心库】
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DOI
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10.1016/j.jmst.2013.03.021
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关键词
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Gold nanoparticle
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Thin film
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Self-assembly
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Droplet interfacial reaction
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Vapor sensor
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地址
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1.
College of Materials Science and Engineering, Guilin University of Technology, Key Laboratory of New Processing Technology for Nonferrous Metals & Materials, Ministry of Education, Guilin, 541004
2.
China Medical University, Shenbei New District, Shengyang, 111013
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1005-0302 |
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学科
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金属学与金属工艺 |
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基金
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supported by the Natural Natural Science Foundation of china
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the Guangxi Natural Science Foundation
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the Scientific Research Foundation for Returned Scholars,Ministry of Education of China.
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文献收藏号
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CSCD:4842566
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