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Título: | Hybrid proton-conducting membranes for polymer electrolyte fuel cells Phosphomolybdic acid doped poly(2,5-benzimidazole)—(ABPBI-H3PMo12O40) |
Autor: | Gómez-Romero, P. CSIC ORCID ; Asensio, Juan Antonio CSIC; Borrós, Salvador | Palabras clave: | Polybenzimidazole PBI ABPBI Heteropolyacid Polyoxometalate Phosphomolybdic acid Hybrid materials Proton conductor Fuel cell membrane Proton exchange membranes PEM fuel cells |
Fecha de publicación: | 27-abr-2005 | Editor: | Elsevier | Citación: | Electrochimica Acta 50: 4715–4720 (2005) | Resumen: | The synthesis and characterization of a novel hybrid organic–inorganic material formed by phosphomolybdic acid H3PMo12O40 (PMo12) and poly(2,5-benzimidazole) (ABPBI) is reported. This material, composed of two proton-conducting components, can be cast in the form of membranes from methanesulfonic acid (MSA) solutions. Upon impregnation with phosphoric acid, the hybrid membranes present higher conductivity than the best ABPBI polymer membranes impregnated in the same conditions. These electrolyte membranes are stable up to 200 ◦C, and have a proton conductivity of 3×10−2 S cm−1 at 185 ◦C without humidification. These properties make them very good candidates as membranes for polymer electrolyte membrane fuel cells (PEMFC) at temperatures of 100–200 ◦C. | Versión del editor: | http://dx.doi.org/10.1016/j.electacta.2005.02.029 | URI: | http://hdl.handle.net/10261/15004 | DOI: | 10.1016/j.electacta.2005.02.029 | ISSN: | 0013-4686 |
Aparece en las colecciones: | (ICMAB) Artículos |
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