Studies on transparent and solid proton conductors based on NH4H2PO4 doped poly(vinyl alcohol)

A novel transparent and anhydrous proton conductor, which can be used in solid electrochromic device (ECD), was prepared by mixing poly(vinyl alcohol) (PVA) with ammonium dihydrogen phosphate (NH4H2PO4). X-ray diffraction, differential scanning calorimeter (DSC), and Infrared spectra were used to ch...

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Bibliographic Details
Published inMaterials letters Vol. 60; no. 13-14; pp. 1724 - 1727
Main Authors Pu, Hongting, Huang, Ping
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2006
Subjects
Ammonium salts
Phosphate
Poly(vinyl alcohol)
Proton conductivity
Transmittance
Proton conductivity
Poly(vinyl alcohol)
Ammonium salts
Transmittance
Phosphate
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Summary:A novel transparent and anhydrous proton conductor, which can be used in solid electrochromic device (ECD), was prepared by mixing poly(vinyl alcohol) (PVA) with ammonium dihydrogen phosphate (NH4H2PO4). X-ray diffraction, differential scanning calorimeter (DSC), and Infrared spectra were used to characterize the structure of PVA/xNH4H2PO4 composite membrane. Proton conductivity of the composite membranes was studied by the complex impedance method. The proton conductivity of the composite membranes increases with increasing temperature and increases with increasing phosphate doping-level at first and then decreases with increasing phosphate content after a certain value of x. The highest proton conductivity is near the area of x=0.067. The transmittance of the complex membranes always decreases with increasing doping level of phosphate.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2005.12.005