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.
出处
《计测技术》
2006年第B09期3-6,共4页
Metrology & Measurement Technology
关键词
铂纳米颗粒
电流型
低浓度
氧气传感器
Pt nanoparticles
amperometric
low concentration
oxygen gas sensors
