期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 559, 期 -, 页码 77-81出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0022-0728(03)00040-8
关键词
lithium; hydrogen; spinel manganese oxide; ion-selective absorption
In the present paper, the composition of several spinel-type lambda-MnO2 samples (which absorb lithium ions with a high selectivity in an aqueous solution) is analyzed and the correlation between the composition and the absorption capacity of lithium is investigated experimentally. Then samples of lambda-MnO2 with different hydrogen contents are prepared, and each lithium absorption capacity is measured. The results indicate that the absorption capacity of lithium is proportional to the content of hydrogen ions with the ability to ion exchange. Furthermore, it is concluded that the reason for the selective absorption of lithium ions in lambda-MnO2 is not based upon the so-called ion sieve effect emphasized conventionally, but is based upon a proper ion exchange reaction which occurs only between lithium and hydrogen ions. (C) 2003 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据