Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/71265
標題: Promotion Effect of Nano-Au on Nafion Application in Low Humidity Sensing
作者: Wu, R.J.
Yu, M.R.
Sun, Y.L.
Chen, Y.Z.
Ln, C.C.
關鍵字: Low Humidity Sensor
Nafion
Gold Nanoparticles
QCM
Association
Constant
quartz-crystal microbalance
gold nanoparticles
composite-material
palladium nanoparticles
sensor
polypyrrole
polymer
surface
films
期刊/報告no:: Sensor Letters, Volume 8, Issue 6, Page(s) 857-863.
摘要: Gold nanoparticles (Au(NP))/Nafion composite material was prepared by reducing HAuCl(4) with aliphatic alcohol in the presence of Nafion. Sensing material of Nafion was then coated on a quartz crystal Microbalance (QCM) that was subsequently investigated for low humidity sensing. Sensitivity of QCM for humidity detection humidity was promoted by the Au(NP) addition to Nafion. Response measurement was performed under humidity concentrations between 12.3 to 2380.9 ppm. The sensitivities of Nafion and Au(NP)/Nafion films towards 12.3 ppm were 0.526 and 1.842 Hz/ppm, respectively. The slope and correlation coefficients (R(2)) for Au(NP)/Nafion for the humidity range from 38.3 to 637.5 ppm were 0.0978 and 0.9953, respectively. The higher sensitivity for Au(NP)/Nafion films over Nafion films was explained by their large association constants (Au(NP)/Nafion, 14496.3 and Nafion, 9228.8) and stronger adsorption bond by theoretical simulation results.
URI: http://hdl.handle.net/11455/71265
ISSN: 1546-198X
文章連結: http://dx.doi.org/10.1166/sl.2010.1356
Appears in Collections:期刊論文

文件中的檔案:

取得全文請前往華藝線上圖書館



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.