ChemInform Abstract: Novel Electrochemical Route for Reduction of Superconducting Bi2Sr2CaCu2O8+δ.

✍ Scribed by M. MATSUDA; H. TAMADA; K. YAMASHITA; T. UMEGAKI; M. MIYAKE

• Publisher: John Wiley and Sons
• Year: 2010
• Weight: 30 KB
• Volume: 28
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.199730004

✦ Synopsis

Novel Electrochemical Route for Reduction of Superconducting Bi2Sr2CaCu2O8+δ.

-The critical temperature, Tc of over-hole-doped Bi2Sr2CaCu2O8+δ ( Bi-2212) superconductors is increased to ≈90 K by electrochemical reduction using an electrolyte solution containing benzoic acid in acetone as proton donor. The reduced stability of the electrochemically reduced Bi-2212 as compared to partially oxygen-removed Bi-2212 at elevated temperature in N2 is attributed to dehydration-induced decomposition of the structure of protonated Bi-2212. -(MATSUDA, M.; TAMADA, H.;