Structure and reactivity of Pr2Ba2Cu2Ti2O11

✍ Scribed by A. Priese; A. Reller

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 472 KB
• Volume: 101-103
• Category: Article
• ISSN: 0167-2738
• DOI: 10.1016/s0167-2738(97)00300-7

✦ Synopsis

Pr,Ba,Cu,Ti,O, ], a possible new superconducting parent phase, was prepared by a standard ceramic method, Intermediate products were identified by X-ray powder diffraction. Rietveld analysis revealed the layered perovskite crystal structure of Pr,Ba,Cu,Ti,O, , and the relationship to known superconductors. The physical properties were investigated by impedance spectroscopy and magnetic measurements.

The redox chemistry of Pr,Ba,Cu,Ti,O, , was examined using thermogravimetry. The reduction of CL? via Cu' to Cu' was observed and a reversible re-oxidation of Cu' to Cu" was found.