Shell-Core Type Proton Conducting TiP2O7-Based Solid Electrolytes
2008 ◽
Vol 388
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pp. 57-60
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Keyword(s):
Sol Gel
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Shell-core type TiP2O7-based electrolytes were synthesized by a low-temperature sol-gel method, and their conductivities were investigated by ac-impedance spectroscopy. The samples heat-treated at 500°C showed higher proton conductivities of 3.8 × 10-2 - 1 × 10-2 Scm-1 at intermediate temperatures (100 - 300°C). The conductivity decreased by reheat-treatments at 600°C and 700°C due to a decrease in the amount of the conductive amorphous shells. However, the mechanical strength of the sample pellet significantly increased by the reheat-treatment. The sample reheat-treated at 600°C kept high conductivities of 8.8 × 10-3 - 1 × 10-3 Scm-1 in a range of 100°C - 300°C.
2019 ◽
Vol 8
(3)
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pp. 209
2010 ◽
Vol 20
(1)
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pp. 18-21
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2020 ◽
Vol 239
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pp. 121975
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