ION-EXCHANGE OF POTASSIUM HEXATUNGSTATE (K0.30WO3.15) BY PROTONS

被引：8

作者：

HERNAN, L ^{[1
]}

MACIAS, M ^{[1
]}

MORALES, J ^{[1
]}

SANCHEZ, L ^{[1
]}

TIRADO, JL ^{[1
]}

机构：

[1] UNIV CORDOBA,FAC CIENCIAS,DEPT QUIM INORGAN & INGN,SAN ALBERTO MAGNO S-N,E-14004 CORDOBA,SPAIN

来源：

SOLID STATE IONICS | 1991年 / 47卷 / 1-2期

关键词：

D O I：

10.1016/0167-2738(91)90183-C

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Potassium ions in K0.30WO3.15, a compound whose structure resembles that of an orderly hexagonal tungsten bronze, are exchanged by protons in aqueous acids, in topochemical reaction that yields K0.3-xHxWO3.15.nH2O (x less-than-or-equal-to 0.26). These hydrated compounds retain the HTB structure. Moreover, electron diffraction patterns show the absence of streaks associated with to the ordering of K+ ions, probably as a result of the low K+ population in the tunnels. IR and thermal techniques showed deprotonation with formation of monoclinic WO3 to take place above 250-degrees-C.

引用

页码：75 / 79

页数：5

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