Hydroxide ion conduction in Ni-Al layered double hydroxide

被引：36

作者：

Kubo, Daiju ^{[1
]}

Tadanaga, Kiyoharu ^{[1
]}

Hayashi, Akitoshi ^{[1
]}

Tatsumisago, Masahiro ^{[1
]}

机构：

[1] Osaka Prefecture Univ, Dept Appl Chem, Grad Sch Engn, Naka Ku, Sakai, Osaka 5998531, Japan

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2012年 / 671卷

关键词：

Layered double hydroxide; Ionic conductivity; Hydroxide ion conductor; Anion-exchange; Interlayer anion; ELECTRODE; CLAY; CO;

D O I：

10.1016/j.jelechem.2012.02.007

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Ionic conductivities of Ni/Al layered double hydroxides (Ni-Al LDHs) intercalated with CO32-, Cl- and OH- were evaluated in the temperature range of 25-80 degrees C under 65-95% relative humidity. X-ray diffraction and Fourier transform infrared measurements confirmed the formation of Ni-Al LDHs intercalated with CO32-, Cl- and OH-. In the AC conductivity measurements, Ni-Al LDH intercalated with CO32- (Ni-Al CO32- LDH) showed the highest ionic conductivity among them. The ionic conductivity of Ni-Al CO32- LDH was 1.3 x 10(-2) S cm(-1) at 80 degrees C under 80% relative humidity. The electromotive force for the water vapor concentration cell using Ni-Al CO32- LDH showed similar behavior with that using anion exchange membrane, indicating that Ni-Al CO32- LDH is a hydroxide ion conductor. Pelletized Ni-Al CO32- LDH was confirmed to work as the electrolyte of alkaline-type direct ethanol fuel cell. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：102 / 105

页数：4

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