On hydrolysis of Ba–Bi–O and K–Ba–Bi–O oxide systems

详细信息    查看全文

• 作者：N. V. Barkovskii
• 关键词：hydrolysis ; Ba–Bi–O oxide ; K–Ba–Bi–O oxide ; oxidation state ; unusual oxygen form
• 刊名：Russian Journal of General Chemistry
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：86
• 期：8
• 页码：1787-1793
• 全文大小：421 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Chemistry
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3350
• 卷排序：86

文摘

Fundamentally different behavior of Ba–Bi–O (Ba : Bi = 11 : 4, 1 : 1, 2: 3, and 1 : 5 mol/mol) and K_nBa_mBi_m+nO_y (m = n = 1, 2,...; exhibiting superconducting properties with T_c = 28–32 K) oxides and BaO₂ in hydrolysis reactions has been revealed by means of potentiometry and chemical analysis. Products of the oxides treatment with water do not contain H₂O₂, evidencing the absence of peroxide ions in their structure. The perovskite-type barium-bismuth(III) oxides are completely hydrolyzed into Ba(OH)₂ and Bi₂O₃ at room temperature.