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A Sol–Gel‐Derived Glass as a Fuel Cell Electrolyte
Author(s) -
Nogami M.,
Matsushita H.,
Goto Y.,
Kasuga T.
Publication year - 2000
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200009)12:18<1370::aid-adma1370>3.0.co;2-1
Subject(s) - electrolyte , materials science , proton conductor , fuel cells , proton exchange membrane fuel cell , membrane , conductivity , hydrogen , chemical engineering , hydrolysis , chemical stability , proton , sol gel , inorganic chemistry , organic chemistry , nanotechnology , electrode , chemistry , engineering , biochemistry , physics , quantum mechanics
A fuel cell electrolyte based on an inorganic glass membrane with a high proton conductivity is described by these authors. The binary glass used (P 2 O 5 –SiO 2 )—prepared by reacting PO(CH 3 ) 3 with hydrolyzed Si(OC 2 H 5 ) 4 —is demonstrated to not only be useful as a proton conductor in hydrogen fuel cells but also as a hydrogen gas sensor. Because of its good chemical stability and promising performance in H 2 –O 2 fuel cells it is believed that P 2 O 5 –SiO 2 could replace perfluorinated ionomers as the electrolyte in these cells.