低浓度电流型氧传感器的研究  

Study of Low Concentration Amperometric Oxygen Gas Sensor

作　　者：孙庚志[1] 华凯峰[1] 吕翔宇[1] 徐建波[1] 王玉江[1] 

机构地区：[1]中国科学院长春应用化学研究所,吉林长春130022

出　　处：《计测技术》2006年第B09期3-6,共4页Metrology & Measurement Technology

摘　　要：合成了纳米级铂催化剂,同时利用AFM,XRD和SEM进行了表征,并将其应用于氧气电化学还原的研究。在极限电流控制范围内,氧气浓度为7×10-6-5010×10-6时,传感器的灵敏度为381nA／10-6,O2气体浓度与响应信号呈现良好的线性关系。The synthesis and characterization of the Pt nanoparticle catalyst for oxygen electrochemical reduction have been studied in this paper. The catalyst was characterized by AFM, XRD and SEM. Electrochemical behavior of the oxygen reduction on the prepared electrode was investigated. A linear relationship between the limiting current and the concentration of Oe is obtained and the sensitivity is 381 nA ppm^-1 when the 02 concentration is in the range 7 to 5010ppm.

关 键 词：铂纳米颗粒 电流型 低浓度 氧气传感器 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TQ153.11[自动化与计算机技术—控制科学与工程]