Study of the potentiometric response towards sodium ions of Na0.44-xMnO2 for the development of selective sodium ion sensors

被引：79

作者：

Sauvage, F. ^{[1
]}

Baudrin, E. ^{[1
]}

Tarascon, J. -M. ^{[1
]}

机构：

[1] Univ Picardie, CNRS, UMR 6007, Lab React & Chim Solides, F-80039 Amiens, France

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2007年 / 120卷 / 02期

关键词：

potentiometric ion sensors; insertion materials; manganese oxide; Na0.44MnO2;

D O I：

10.1016/j.snb.2006.03.024

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Single phase Na0.44MnO2 powder was synthetized by a classical solid-state reaction. Using a plastic technology, we studied the potentiometric response versus Na+ ions in aqueous medium. A Nernstian-like response (55 mV/dec) was obtained for concentrations ranging from 1 M to 2 x 10(-4) M with a quite good selectivity towards Li+, K+, Mg2+ and Ca2+. Through an ageing study of this material in aqueous solution, we clearly identified the sensing material as being the Na0.33MnO2 phase. Furthermore, we proved that the sensing activity of this compound is routed in its ability to reversibly insert/de-insert Na+ ions. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：638 / 644

页数：7

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