The impact of different calcination temperature (550, 650, 750 and 850 degrees C) on the structural/electrical properties of sintered Cu/Sm co-doped CeO2 prepared by sol-gel combustion were studied. Structural properties were studied by X-ray diffraction (XRD), Raman spectroscopy and ultraviolet-visible spectroscopy (UV-VIS). The composition, oxidation state and electrical conductivity of sintered samples were investigated by photoelectron spectroscopy (XPS) and electrochemical impedance spectroscopy (EIS), respectively. With the increasing calcination temperature, both the oxygen vacancy and Ce3+ increase. Therefore, the highest conductivity was obtained for samples calcined at 850 degrees C.
机构:
Istanbul Univ Cerrahpasa, Fac Engn, Dept Met & Mat Engn, TR-34320 Istanbul, TurkeyIstanbul Univ Cerrahpasa, Fac Engn, Dept Met & Mat Engn, TR-34320 Istanbul, Turkey
Arabaci, Aliye
Oksuzomer, M. A. Faruk
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Istanbul Univ Cerrahpasa, Fac Engn, Dept Chem Engn, Istanbul, TurkeyIstanbul Univ Cerrahpasa, Fac Engn, Dept Met & Mat Engn, TR-34320 Istanbul, Turkey
机构:
School of Material Science and Engineering, Changchun University of Technology and Science, Changchun 130022, ChinaSchool of Material Science and Engineering, Changchun University of Technology and Science, Changchun 130022, China
Bi, Fang
Lv, Jing-Wen
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School of Material Science and Engineering, Changchun University of Technology and Science, Changchun 130022, ChinaSchool of Material Science and Engineering, Changchun University of Technology and Science, Changchun 130022, China
Lv, Jing-Wen
Wang, Yun-Zhi
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School of Material Science and Engineering, Changchun University of Technology and Science, Changchun 130022, ChinaSchool of Material Science and Engineering, Changchun University of Technology and Science, Changchun 130022, China