An Oxygen Sensor based on Electrospun Carbon Nanofibers Modified with Pd Particles

被引：1
|
作者：
Weng, Yu-Ching [1 ]
Wang, Zhao-Nan [1 ]
Wu, Shu-Yii [1 ,2 ]
机构：
[1] Feng Chia Univ, Dept Chem Engn, Taichung 40724, Taiwan
[2] Feng Chia Univ, Green Energy Dev Ctr, Taichung 40724, Taiwan
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2018年 / 13卷 / 10期
关键词：
Pd; CNF; sensor; oxygen; electrospinning; IMPREGNATION-REDUCTION METHOD; GAS SENSORS; SENSITIVITY;
D O I：
10.20964/2018.10.55
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Electrospun carbon nanofibers modified with Pd sensors have been developed for O-2 sensing with high sensitivity. The average diameter of carbon nanofiber and Pd particle is about 251 and 20.5 nm, respectively. The sensing performances of the Pd decorated carbon nanofiber (Pd-CNF) electrode towards reduction of O-2 were evaluated. The Pd-CNF electrode with a Pd loading of 4.7 mg/cm(2) shows maximum sensitivity of 2.6 mu Appm(-1)cm(-2) in the O-2 concentration region of 100-1000 ppm. The response and recovery times are less than 32 and 48 s, respectively. The high sensitivity, wide linear range and rapid response and recovery times make the Pd-CNF electrode a promising candidate for amperometric O-2 sensors.
引用
收藏
页码：9374 / 9384
页数：11
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