Synthesis and proton conductivity of thermally stable polymer electrolyte: poly(benzimidazole) complexes with strong acid molecules

被引：215

作者：

Kawahara, M ^{[1
]}

Morita, J ^{[1
]}

Rikukawa, M ^{[1
]}

Sanui, K ^{[1
]}

Ogata, N ^{[1
]}

机构：

[1] Sophia Univ, Dept Chem, Chiyoda Ku, Tokyo 1028554, Japan

来源：

ELECTROCHIMICA ACTA | 2000年 / 45卷 / 8-9期

关键词：

poly(benzimidazole); strong acid; proton conduction; acid-base interaction; hydrogen bonding interaction;

D O I：

10.1016/S0013-4686(99)00349-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We synthesized thermally stable proton-conducting polymers composed of poly(benzimidazole) (PBI) and strong acids. PBI films were doped with strong acids such as phosphoric, sulfuric, and hydrochloric acid by immersing them into a mixed solution of strong acid and methanol. We found that the PBI films and strong acids formed polymer complexes because they showed the acid-base or the hydrogen bonding interactions between imidazole groups of PBI and acid molecules. The PBI/H3PO4 complexes were thermally stable up to 500 degrees C, and the proton conductivity of anhydrous complexes reached 10(-5) S cm(-1) at 160 degrees C. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1395 / 1398

页数：4

共 18 条

[1]

Blomen L., 1993, FUEL CELL SYSTEMS

[2] Acid-doped polybenzimidazole as the membrane of electrochemical hydrogen sensors [J].

Bouchet, R ;

Siebert, E ;

Vitter, G .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (05) :L95-L97

[3] SOLID-STATE PROTONIC CONDUCTORS - POLY(ETHYLENE IMINE) SULFATES AND PHOSPHATES [J].

DANIEL, MF ;

DESBAT, B ;

CRUEGE, F ;

TRINQUET, O ;

LASSEGUES, JC .

SOLID STATE IONICS, 1988, 28 :637-641

[4] THE APPLICATION OF DOW CHEMICALS PERFLUORINATED MEMBRANES IN PROTON-EXCHANGE MEMBRANE FUEL-CELLS [J].

EISMAN, GA .

JOURNAL OF POWER SOURCES, 1990, 29 (3-4) :389-398

[5] High pressure electrical conductivity studies of acid doped polybenzimidazole [J].

Fontanella, JJ ;

Wintersgill, MC ;

Wainright, JS ;

Savinell, RF ;

Litt, M .

ELECTROCHIMICA ACTA, 1998, 43 (10-11) :1289-1294

[6]

Gray F.M., 1997, POLYM ELECTROLYTES

[7] Characterization of H3PO4 based PVA complex system [J].

Gupta, PN ;

Singh, KP .

SOLID STATE IONICS, 1996, 86-8 :319-323

[8] Thermal stability of proton conducting acid doped polybenzimidazole in simulated fuel cell environments [J].

Samms, SR ;

Wasmus, S ;

Savinell, RF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (04) :1225-1232

[9] Proton conducting gel H3PO4 electrolytes [J].

Stevens, JR ;

Wieczorek, W ;

Raducha, D ;

Jeffrey, KR .

SOLID STATE IONICS, 1997, 97 (1-4) :347-358

[10] PROTON CONDUCTING BEHAVIOR OF POLY(ETHYLENIMINE)-H3PO4 SYSTEMS [J].

TANAKA, R ;

YAMMOTO, H ;

KAWAMURA, S ;

IWASE, T .

ELECTROCHIMICA ACTA, 1995, 40 (13-14) :2421-2424

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