Electrochemical Sulfite-Ion Sensor Using Sm2CuO4-Based Layered Perovskite-Type Oxide Thick Film

被引：1
|
作者：
Shinoda, Yasunari [1 ]
Takase, Satoko [1 ]
Shimizu, Youichi [1 ]
机构：
[1] Kyushu Inst Technol, Dept Appl Chem, Kitakyushu, Fukuoka 8048550, Japan
来源：
IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING | 2023年 / 18卷 / 02期
关键词：
Sm1.9Ce0.1CuO4; thick film; sulfite ion; electrochemical sensor;
D O I：
10.1002/tee.23724
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：
Sm2-xCexBO4 (x = 0, 0.1; B = Fe, Cu) thick films were prepared by an electrophoretic deposition method and applied as sulfite-ion (SO32-) sensors. Among the oxides, Sm1.9Ce0.1CuO4 showed good amperometric response to sulfite ions in the ion concentration range between 1.0 x 10(-5) and 1.0 x 10(-4) M at 30 degrees C. The applied potential to the electrode should be one of the key factors of high selectivity, and the relatively low potential of +0.2 V versus Ag/AgCl was found to be optimal for the detection of sulfite ions. Good sulfite-ion sensing should be enabled by Cu+ in Sm1.9Ce0.1CuO4 where SO32- is easily adsorbed. (C) 2022 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.
引用
收藏
页码：300 / 302
页数：3
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