METASTABLE LAYERED CHALCOGENIDES 1T-MOS2, 2M-WS2 AND 1T-MO1/2W1/2S2 - ELECTROCHEMICAL STUDY ON THEIR INTERCALATION REACTIONS

被引：42

作者：

WYPYCH, F ^{[1
]}

SOLLMANN, K ^{[1
]}

SCHOLLHORN, R ^{[1
]}

机构：

[1] TECH UNIV BERLIN,INST ANORGAN & ANALYT CHEM,STR 17 JUNI 135,W-1000 BERLIN 12,GERMANY

来源：

MATERIALS RESEARCH BULLETIN | 1992年 / 27卷 / 05期

关键词：

MOLYBDENUM; TUNGSTEN; DISULFIDES; INTERCALATION COMPOUNDS;

D O I：

10.1016/0025-5408(92)90142-M

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The formation of hydrated layered sulfides Kx(H2O)y[MoS2] from the metastable host lattices 1T-MoS2, 2M-WS2 and 1T-Mo1/2W1/2S2 has been investigated by galvanostatic electrochemical reduction and by cyclovoltammetry. Essential results are (i) the formation of an unusually large number of intermediate phases, (ii) high resolution cyclovoltammograms of solid state processes, (iii) excellent reversibility of the reaction upon cycling. The appearance of four to five intermediate phases in a narrow stoichiometry range has been interpreted on grounds of structural instabilities and ordering processes in the interlayer electrolyte phase.

引用

页码：545 / 553

页数：9