Proton-conducting oxide with redox protonation and its application to a hydrogen sensor with a self-standard electrode

被引：22

作者：

Okuyama, Yuji ^{[1
]}

Nagamine, Shinya ^{[2
]}

Nakajima, Akira ^{[3
]}

Sakai, Go ^{[4
]}

Matsunaga, Naoki ^{[4
]}

Takahashi, Fusako ^{[5
]}

Kimata, Koji ^{[5
]}

Oshima, Tomoko ^{[5
]}

Tsuneyoshi, Koji ^{[5
]}

机构：

[1] Miyazaki Univ, Org Promot Tenure Track, 1-1 Gakuenkibanadai Nishi, Miyazaki 8892192, Japan

[2] Miyazaki Univ, Fac Engn, Dept Appl Chem, 1-1 Gakuenkibanadai Nishi, Miyazaki 8892192, Japan

[3] Miyazaki Univ, Frontier Sci Res Ctr, Dept Biotechnol, 5200 Kihara,Kiyotake Cho, Miyazaki 8891692, Japan

[4] Miyazaki Univ, Fac Engn, Dept Environm Robot, 1-1 Gakuenkibanadai Nishi, Miyazaki 8892192, Japan

[5] TYK Corp, Funct Mat R&D Ctr, 3-1 Ohata, Tajimi 5078607, Japan

来源：

RSC ADVANCES | 2016年 / 6卷 / 40期

关键词：

SINTERED OXIDES; CALCIUM; COBALT;

D O I：

10.1039/c5ra23560j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In order to simplify the structure of the EMF-type hydrogen sensor using a proton conductor as the electrolyte, an electrolyte serving as a self-standard electrode in air was developed. The electrochemical properties and proton dissolution mechanism of Mn-doped CaZrO3 were evaluated by impedance analysis, EMF measurement, IR absorption analysis and ESR measurement. Mn-doped CaZrO3 acquires a proton from hydrogen by reduction of the manganese ion. 5 mol% Mn doped CaZrO3 showed proton conduction in a reducing atmosphere and hole conduction in an oxidizing atmosphere. A gas concentration cell using CaZr0.95Mn0.05O3-delta as the electrolyte was constructed for use as a hydrogen sensor. It was found to be dependent only on the hydrogen potential of the working electrode when air was used as the reference gas.

引用

页码：34019 / 34026

页数：8

共 26 条

[1]

[Anonymous], 1992, KEIKINZOKU, DOI DOI 10.2464/JILM.42.263

[2] SYSTEM ZRO2-CAO STUDIED BY ELECTRON-SPIN RESONANCE OF MN-2+ IONS [J].