Conductance Properties of Binary Mixed Oxides
1Umm Al-Qura University, Faculty of Applied Sciences and Engineering, Chemistry Department, Makkah Al-Mukarramah K. S. Arabia.
2Department of Chemistry, Assiut University, Assiut Egypt.
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ABSTRACT:Conductance of binary oxides like ZnO-Fe2O3 was studied for different Zn/Fe ratio. Lower percentages of either Zn ions added to Fe2O3 or Fe ions added to ZnO matrix increase the n-type character of the host oxide. Mixing in higher ratios shows ferrite structures as detected by XRD analysis. A maximum in conductivity was traced at 50 at % Fe ions due to reduction of Fe+2/Fe+3 ratio on the octahedral sites by which conduction in ferrites proceeds.
KEYWORDS:Conductance; Binary; Oxides







