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Pore‐Controlled Proton Conducting Silica Films
Author(s) -
Li H.,
Nogami M.
Publication year - 2002
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(20020618)14:12<912::aid-adma912>3.0.co;2-l
Subject(s) - materials science , conductivity , proton , porosity , humidity , substrate (aquarium) , relative humidity , composite material , chemical engineering , perpendicular , electrical resistivity and conductivity , chemistry , physics , oceanography , geometry , mathematics , quantum mechanics , engineering , thermodynamics , geology , electrical engineering
Highly proton‐conducting glass films have been prepared by controlling the pore size of the silica film. The conductivity of films with pores perpendicular to the substrate surface is high, whereby the conductivity increases with increasing water content. The high conductivity was retained at relatively low humidity due to the restriction of water movement in the pores. These porous proton‐conducting materials are of interest for use in small fuel cell systems.