Preparation and conductivity of solid high-proton conductor silica gels containing 12-tungstogermanic heteropoly acid

被引：19

作者：

Wu, QY ^{[1
]}

Tao, SW

Lin, HH

Meng, GY

机构：

[1] Liaoning Univ, Inst Chem Sci & Engn, Shenyang 110036, Peoples R China

[2] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2000年 / 68卷 / 03期

基金：

中国博士后科学基金;

关键词：

sol-gel growth; infrared spectroscopy; x-ray diffraction; electrical conductivity;

D O I：

10.1016/S0921-5107(99)00584-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Silica gels containing 12-tungstogermanic acid were prepared by means of sol-gel method. Infrared spectra and XRD patterns revealed that the Keggin structure characteristic of GeW12O404- anion was present in the silica gel skeleton. The regularity of the change of the characteristic peaks in the infrared spectra was investigated. The silica gels exhibited considerably high-proton conductivity, and the conductivity increased with increasing 12-tungstogermanic acid content. The proton conductivity of gel containing 71 wt% 12-tungstogermanic acid is 4.00 x 10(-3) s cm(-1) at room temperature (16 degrees C). (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：161 / 165

页数：5

共 10 条

[1] PROTON-CONDUCTING SOLID DISPERSIONS OF SILICA AND ZIRCONIUM-PHOSPHATE PYROPHOSPHATE [J].

ALBERTI, G ;

CASCIOLA, M ;

COSTANTINO, U ;

PERAIO, A ;

REGA, T .

JOURNAL OF MATERIALS CHEMISTRY, 1995, 5 (11) :1809-1812

[2] ORGANIC INORGANIC PROTONIC POLYMER ELECTROLYTES AS MEMBRANE FOR LOW-TEMPERATURE FUEL-CELL [J].

GAUTIERLUNEAU, I ;

DENOYELLE, A ;

SANCHEZ, JY ;

POINSIGNON, C .

ELECTROCHIMICA ACTA, 1992, 37 (09) :1615-1618

[3] SOL-GEL IONICS [J].

LIVAGE, J .

SOLID STATE IONICS, 1992, 50 (3-4) :307-313

[4] Structure and proton conductivity of 12-tungstophosphoric acid doped silica [J].

Mioc, UB ;

Milonjic, SK ;

Malovic, D ;

Stamenkovic, V ;

Colomban, P ;

Mitrovic, MM ;

Dimitrijevic, R .

SOLID STATE IONICS, 1997, 97 (1-4) :239-246

[5] 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

[6] CONDUCTIVITY VARIATIONS IN COMPOSITES OF ALPHA-ZIRCONIUM PHOSPHATE AND FUMED SILICA [J].

SLADE, RCT ;

JINKU, H ;

KNOWLES, JA .

SOLID STATE IONICS, 1992, 50 (3-4) :287-290

[7] PREPARATION AND PROTON-CONDUCTION OF SILICA-GELS CONTAINING HETEROPOLY ACIDS [J].

TATSUMISAGO, M ;

KISHIDA, K ;

MINAMI, T .

SOLID STATE IONICS, 1993, 59 (3-4) :171-174

[8] ANTIMONIC ACID HYDRATE XEROGELS AS PROTON ELECTROLYTES [J].

VAIVARS, G ;

KLEPERIS, J ;

LUSIS, A .

SOLID STATE IONICS, 1993, 61 (04) :317-321

[9]

WU QY, 1994, CHINESE CHEM LETT, V5, P59

[10]

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

← 1 →