Synthesis and conductivity of tritungstovanadoselenic heteropoly acid

被引：12

作者：

Wu, QY ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China

来源：

MATERIALS LETTERS | 2001年 / 50卷 / 2-3期

基金：

中国博士后科学基金;

关键词：

heteropolyacid; tungstovanadoselenic acid; proton conductivity;

D O I：

10.1016/S0167-577X(00)00417-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tungstovanadoselenic heteropoly acid H7SeW9V3O40. 23H(2)O has been synthesized by the stepwise acidification and the stepwise addition of solutions of the component elements to a hot solution of sodium tungstate. The product was characterized by chemical analysis, potentiometric titration, IR, UV, XRD and TG-DTA. The determination of conductivity shows that tritungstovanadoselenic acid is an excellent high-proton conductor. Its conductivity is 6.25 X 10(-4) S(.)cm(-1) at room temperature (18 degreesC). The dependence of proton conductivity on the hydration number has been investigated. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：78 / 81

页数：4

共 9 条

[1] A GENERAL TECHNIQUE FOR HETEROPOLYANION ANALYSIS USING INDUCTIVELY-COUPLED PLASMA-ATOMIC EMISSION-SPECTROSCOPY, ATOMIC-ABSORPTION SPECTROSCOPY AND GRAVIMETRY [J].

CROOKS, WJ ;

CHOPPIN, GR ;

SAITO, A .

ANALYTICAL LETTERS, 1994, 27 (14) :2737-2750

[2] PROTON TRANSPORT MECHANISM IN CONCENTRATED AQUEOUS-SOLUTIONS AND SOLID HYDRATES OF ACIDS [J].

DIPPEL, T ;

KREUER, KD .

SOLID STATE IONICS, 1991, 46 (1-2) :3-9

[3] HIGH-CONDUCTIVITY SOLID PROTON CONDUCTORS - DODECAMOLYBDOPHOSPHORIC ACID AND DODECATUNGSTOPHOSPHORIC ACID CRYSTALS [J].

NAKAMURA, O ;

KODAMA, T ;

OGINO, I ;

MIYAKE, Y .

CHEMISTRY LETTERS, 1979, (01) :17-18

[4] POLYOXOMETALATE CHEMISTRY - AN OLD FIELD WITH NEW DIMENSIONS IN SEVERAL DISCIPLINES [J].

POPE, MT ;

MULLER, A .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1991, 30 (01) :34-48

[5] AC AND DC CONDUCTIVITY STUDIES OF PELLETIZED 12-TUNGSTOPHOSPHORIC ACID AND 12-TUNGSTOSILICIC ACID HEXAHYDRATES [J].

SLADE, RCT ;

PRESSMAN, HA ;

SKOU, E .

SOLID STATE IONICS, 1990, 38 (3-4) :207-211

[6]

WU QY, 1992, CHINESE J INORG CHEM, V8, P96

[7]

WU QY, 1993, ZH NEORG KHIM, V38, P1557

[8]

吴庆银, 1996, Rare Metals, V15, P257

[9]

吴庆银, 1992, Rare Metals, V11, P60

← 1 →