Premium
Synthesis, Characterization and Oxide Ionic Conductivity of Binary δ‐(Bi 2 o 3 ) 1‐x (Lu 2 o 3 ) x System
Author(s) -
Öztürk Esra,
Kalaycioglu Nilgun Ozpozan
Publication year - 2013
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201200540
Subject(s) - chemistry , analytical chemistry (journal) , bismuth , ionic conductivity , oxide , atmospheric temperature range , conductivity , doping , materials science , thermodynamics , physics , optoelectronics , organic chemistry , electrode , chromatography , electrolyte
In this study, after doping Lu 2 O 3 to α‐Bi 2 O 3 in the range of 11% ≤ n ≤ 20% in a series of different mole ratios, heat treatment was performed by applying a cascade temperature rise in the range of 700‐800 °C for 72 hours and new phases were obtained in the (Bi 2 o 3 ) 1‐x (Lu 2 o 3 ) x system. After 72 hours of heat treatment at 800 °C, mixtures containing 14‐16% Lu 2 O 3 formed a face‐centered cubic phase. Mixtures containing 11– 13%, 17%, 18% mole Lu 2 O 3 were subjected to a quenching process at 825 °C and face‐centered cubic phases were obtained. With the help of XRD, the crystal systems and lattice parameters of the solid solutions were obtained and their characterization was carried out. Thermal measurements were made by using a simultaneous DTA/TG system. The total conductivity (σ T ) in the δ‐Bi 2 O 3 doped with Lu 2 O 3 system was measured using the four‐probe DC method. Keywords: Bismuth oxide; lutesium oxide; oxygen ionic conductivity; X‐ray techniques; thermal analysis.