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Nonstoichiometric mixed perovskites A 3 B' 1+x B'' 2-x O 9-δ , e.g. Ba 3 Ca 1.18 Nb 1.82 O 9-δ , exhibit high proton and oxygen-ion conductivity. It is expected that mixed ionic and electronic conductors may be found in these compounds if the B-sites are partially substituted...
The ionic conduction mechanism of high-temperature sulfate phases Li 2 SO 4 , LiNaSO 4 , LiAgSO 4 and Li 4 Zn(SO 4 ) 3 has been extensively studied and discussed for many years. Two mechanisms named as 'paddle-wheel' and 'percolation' mechanisms were presented for ionic migration. In this paper, Zn 2+ ion was selected as dopant for...
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