Preparation of gold-poly(vinyl pyrrolidone) core-shell nanocomposites and their humidity-sensing properties

Xue Jiao Chen; Jian Zhang; Dian Fei Ma; Shi Chao Hui; Yan Li Liu; Wei Yao

doi:10.1002/app.33751

Preparation of gold-poly(vinyl pyrrolidone) core-shell nanocomposites and their humidity-sensing properties

Xue Jiao Chen
, Jian Zhang^*
, Dian Fei Ma
, Shi Chao Hui
, Yan Li Liu
, Wei Yao

^*Corresponding author for this work

School of Communication and Electronic Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The humidity-sensing properties of gold (Au)-poly(vinyl pyrrolidone) (PVP) core-shell nanocomposites were investigated. Au-PVP nanocomposites were synthesized and then incorporated into a capacitive-type humidity sensor as a dielectric. Because of the adsorption/desorption of water molecules, the variation of capacitance under different humidity levels was examined by the capacitance-frequency conversion circuit and recorded by a LabVIEW system in terms of the frequency shift. As the relative humidity (RH) increased from 11.3 to 93%, the output frequency decreased monotonically, with a sen sitivity of about-136 Hz/% RH. Also, the good reproducibility and stability, fast response, and low hysteresis made the pellet a suitable candidate for humidity sensing.

Original language	English
Pages (from-to)	1685-1690
Number of pages	6
Journal	Journal of Applied Polymer Science
Volume	121
Issue number	3
DOIs	https://doi.org/10.1002/app.33751
State	Published - 5 Aug 2011

Keywords

Core-shell polymers
Nanocomposites
Nanotechnology

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10.1002/app.33751

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title = "Preparation of gold-poly(vinyl pyrrolidone) core-shell nanocomposites and their humidity-sensing properties",

abstract = "The humidity-sensing properties of gold (Au)-poly(vinyl pyrrolidone) (PVP) core-shell nanocomposites were investigated. Au-PVP nanocomposites were synthesized and then incorporated into a capacitive-type humidity sensor as a dielectric. Because of the adsorption/desorption of water molecules, the variation of capacitance under different humidity levels was examined by the capacitance-frequency conversion circuit and recorded by a LabVIEW system in terms of the frequency shift. As the relative humidity (RH) increased from 11.3 to 93\%, the output frequency decreased monotonically, with a sen sitivity of about-136 Hz/\% RH. Also, the good reproducibility and stability, fast response, and low hysteresis made the pellet a suitable candidate for humidity sensing.",

keywords = "Core-shell polymers, Nanocomposites, Nanotechnology",

author = "Chen, \{Xue Jiao\} and Jian Zhang and Ma, \{Dian Fei\} and Hui, \{Shi Chao\} and Liu, \{Yan Li\} and Wei Yao",

year = "2011",

month = aug,

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doi = "10.1002/app.33751",

language = "英语",

volume = "121",

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T1 - Preparation of gold-poly(vinyl pyrrolidone) core-shell nanocomposites and their humidity-sensing properties

AU - Chen, Xue Jiao

AU - Zhang, Jian

AU - Ma, Dian Fei

AU - Hui, Shi Chao

AU - Liu, Yan Li

AU - Yao, Wei

PY - 2011/8/5

Y1 - 2011/8/5

N2 - The humidity-sensing properties of gold (Au)-poly(vinyl pyrrolidone) (PVP) core-shell nanocomposites were investigated. Au-PVP nanocomposites were synthesized and then incorporated into a capacitive-type humidity sensor as a dielectric. Because of the adsorption/desorption of water molecules, the variation of capacitance under different humidity levels was examined by the capacitance-frequency conversion circuit and recorded by a LabVIEW system in terms of the frequency shift. As the relative humidity (RH) increased from 11.3 to 93%, the output frequency decreased monotonically, with a sen sitivity of about-136 Hz/% RH. Also, the good reproducibility and stability, fast response, and low hysteresis made the pellet a suitable candidate for humidity sensing.

AB - The humidity-sensing properties of gold (Au)-poly(vinyl pyrrolidone) (PVP) core-shell nanocomposites were investigated. Au-PVP nanocomposites were synthesized and then incorporated into a capacitive-type humidity sensor as a dielectric. Because of the adsorption/desorption of water molecules, the variation of capacitance under different humidity levels was examined by the capacitance-frequency conversion circuit and recorded by a LabVIEW system in terms of the frequency shift. As the relative humidity (RH) increased from 11.3 to 93%, the output frequency decreased monotonically, with a sen sitivity of about-136 Hz/% RH. Also, the good reproducibility and stability, fast response, and low hysteresis made the pellet a suitable candidate for humidity sensing.

KW - Core-shell polymers

KW - Nanocomposites

KW - Nanotechnology

UR - https://www.scopus.com/pages/publications/79959193232

U2 - 10.1002/app.33751

DO - 10.1002/app.33751

M3 - 文章

AN - SCOPUS:79959193232

SN - 0021-8995

VL - 121

SP - 1685

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JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

IS - 3

ER -

Preparation of gold-poly(vinyl pyrrolidone) core-shell nanocomposites and their humidity-sensing properties

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