CATION-EXCHANGE CHARACTERISTICS OF K2W4O13 IN MOLTEN NITRATE SALTS

被引：5

作者：

MIYAKE, M

YOSHIKAWA, Y

SUZUKI, T

机构：

[1] Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, Kofu, 400, Takeda

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1991年 / 93卷 / 02期

关键词：

D O I：

10.1016/0022-4596(91)90325-C

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The cation-exchange characteristics of K2W4O13, with its tunnel framework structure, for univalent cations in molten nitrate salts just above their melting points have been investigated. From the results, K+ ions in the tunnels were found be topotactically exchanged for Li+, Na+, Rb+, and Ag+, and the exchange ratios were found to follow the order; Rb+ < Li+ < Na+ < Ag+. It was found that the host-guest reactions on K2W4O13 produce new materials with this tunnel structure that cannot be prepared by the ordinary synthetic method. © 1991.

引用

页码：510 / 513

页数：4

共 6 条

[1] ALKALI TUNGSTATES - STABILITY RELATIONS IN SYSTEMS A2O.WO3-WO3 [J].

CHANG, LLY ;

SACHDEV, S .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1975, 58 (7-8) :267-270

[2]

FAURIE JP, 1971, B SOC CHIM FR, V4, P1170

[3] CRYSTAL-STRUCTURES OF SILVER DIMOLYBDATE, AG2MO2O7, AND SILVER DITUNGSTATE, AG2W2O7 [J].

GATEHOUSE, BM ;

LEVERETT, P .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1976, (14) :1316-1320

[4] CRYSTAL-STRUCTURE OF K2W4O13 [J].

OKADA, K ;

MARUMO, F ;

IWAI, S .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1978, 34 (NOV) :3193-3195

[5] EFFECTIVE IONIC RADII IN OXIDES AND FLUORIDES [J].

SHANNON, RD ;

PREWITT, CT .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL CRYSTALLOGRAPHY AND CRYSTAL CHEMISTRY, 1969, B 25 :925-&

[6] CRYSTAL-STRUCTURE OF SODIUM TETRATUNGSTATE, NA2W4O13 [J].

VISWANAT.K .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1974, (20) :2170-2172

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