Carbon nanohorn sensor to detect ozone in water

被引：12

作者：

Sano, Noriaki ^{[1
]}

Ohtsuki, Fumihiro ^{[1
]}

机构：

[1] Univ Hyogo, Himeji Inst Technol, Dept Mech & Syst Engn, Himeji, Hyogo 6712201, Japan

来源：

JOURNAL OF ELECTROSTATICS | 2007年 / 65卷 / 04期

基金：

日本学术振兴会;

关键词：

sensor; ozone; carbon nanohorn;

D O I：

10.1016/j.elstat.2006.09.002

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A sensor to detect ozone in water was fabricated using coating film of single-wall carbon nanohorns (CNHs). This sensor is based on the phenomena that the electric resistance of the CNH-film decreased with the adsorption of ozone molecules thereon due to charge transfer from the surface of CNHs to O(3) molecules. The shift of the electric resistance of the CNH-film was monitored with varied concentrations of aqueous ozone at several temperatures. The shift of the electric resistance of the CNH-film was correlated with the ozone concentration and temperature based on monolayer adsorption model with consideration of activation energies of the relevant adsorption, desorption, and sensitivity of charge transfer. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：263 / 268

页数：6

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