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A Sb‐doped SnP 2 O 7 Solid Proton Conductor for Intermediate Temperature Fuel Cells
Author(s) -
Wu X.,
Verma A.,
Scott K.
Publication year - 2008
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.200800032
Subject(s) - proton conductor , doping , conductivity , materials science , analytical chemistry (journal) , proton , impurity , fourier transform infrared spectroscopy , conductor , electrical conductor , nuclear chemistry , chemistry , chemical engineering , chromatography , composite material , organic chemistry , physics , optoelectronics , electrode , quantum mechanics , engineering , electrolyte
Sb‐doped SnP 2 O 7 were prepared and characterised with XRD, FTIR, SEM and EIS. The preparation parameters were optimised taking into consideration the influence of H 3 PO 4 content in the reactants and P m O n impurities. Conductivities of SnP 2 O 7 with different Sb doping levels were studied from 100 to 300 °C in un‐humidified air. The conductivity of 20 mol‐% Sb‐doped SnP 2 O 7 was greater than 0.1 S cm –1 at 300 °C. The effect of heat treatment was identified as an important factor in the preparation of the proton conductors. The time dependence of the conductivity demonstrated Sb‐doped SnP 2 O 7 as a promising intermediate temperature solid proton conductor.
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