Analyzing anode and cathode products obtained by the electrolysis of Y-Ba-Cu-O and Y-Ba-Cu-K-O systems

• Published in: Bulletin of the Russian Academy of Sciences. Physics 2014-09, Vol.78 (9), p.864-867
• Main Authors: Nikolaichik, V. I., Klinkova, L. A.
• Format: Article
• Language: English
• Subjects: Copper oxides; Electrolysis; Electron diffraction; Energy dispersive X ray spectroscopy; Hadrons; Heavy Ions; High resolution; High resolution electron microscopy; High temperature; Melts; Nuclear Physics; Physics; Physics and Astronomy; Proceedings of the XVIII Russian Symposium on Scanning Electron Microscopy and Analytical Methods of Investigation Used in Solid-State Physics SEM-2013; Synthesis; X-ray diffraction; Yttrium oxide
• ISSN: 1062-8738; 1934-9432
• DOI: 10.3103/S1062873814090184

Energy dispersive X-ray spectroscopy (EDX) and electron diffraction and high-resolution electron microscopy are used to study the composition and structure of anode and cathode deposits formed during the high temperature (950°C) electrolysis of the Y-Ba-Cu-O system and low temperature (450°C) electrolysis of the Y-Ba-Cu-K-O system. It is found for the first time that an oxide with the YBa 2 Cu 3 O y structure (123 phase) is synthesized during the high temperature electrolysis of Y 0.02 Ba 0.30 Cu 0.70 O y and Y 0.02 Ba 0.25 Cu 0.75 O y melts. The 123 phase is not synthesized during low temperature electrolysis, where melts are formed from Y 2 O 3 , BaO 2 , CuO, and KOH. Two new Pt-containing oxides with hexagonal structure are found in the products of high temperature electrolysis.