| 新型电化学CO气体传感器的研制 |
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| 引用本文： | 陈长伦,何建波,刘锦淮.新型电化学CO气体传感器的研制[J].传感器与微系统,2004,23(5):32-35. |
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| 作者姓名： | 陈长伦 何建波 刘锦淮 |
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| 作者单位： | 1. 合肥工业大学,化工学院,安徽,合肥,230009
2. 中国科学院,合肥智能机械研究所,安徽,合肥,230031 |
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| 基金项目： | 中国科学院智能机械研究所创新项目 |
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| 摘 要： | 研制了一种用于测定CO的新型电化学式气体传感器,即把多壁碳纳米管自组装到铂微电极上,制备多壁碳纳米管粉末微电极,其电极在氧化过电位为+700mV时,对CO具有显著的电化学催化效应。以其电极为工作电极,Ag/AgCl为参比电极,Pt丝为对比电极,多孔聚四氟乙烯膜作为透气膜制成传感器。其传感器响应时间短、重复性好,能用于环境监测和控制。
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| 关 键 词： | 电化学 气体传感器 多壁碳纳米管 修饰电极 CO测定 |
| 文章编号： | 1000-9787(2004)05-0032-04 |
| 修稿时间： | 2003年11月27日 |
Development of novel electrochemical CO gas sensor |
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| CHEN Chang-lun,HE Jian-bo,LIU Jin-huai.Development of novel electrochemical CO gas sensor[J].Transducer and Microsystem Technology,2004,23(5):32-35. |
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| Authors: | CHEN Chang-lun HE Jian-bo LIU Jin-huai |
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| Affiliation: | CHEN Chang-lun~1,HE Jian-bo~1,LIU Jin-huai ~2 |
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| Abstract: | A novel electrochemical sensor had been developed for determination of carbon monoxide.The multi-wall carbon nanotubes (MWNTs) modified Pt disk microelectrode exhibit strong catalytic effect toward the electrochemical oxidation of carbon monoxide with oxidation potential of 700mV relative to the Ag/AgCl electrode.The CO gas sensor is based on MWNTs power micro-electrode as working electrode,an Ag/AgCl as reference electrode,a Pt wire as counter electrode,and a porous polyethylene film which is in direct contact with the gas-containing atmosphere.The sensor is characterized by a short response time and high repeatability.It can be used in the field of environmental monitoring and control. |
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| Keywords: | electrochemistry gas sensor multi-wall carbon nanotubes(MWNTs) modified electrode CO determination |
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