Sorption and Desorption Characteristics of Water Vapour on YBa2Cu3O7-x Powders
- 1 November 1990
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 29 (11A) , L2022-2025
- https://doi.org/10.1143/jjap.29.l2022
Abstract
The sorption isotherms of water vapour of YBa2Cu3O7-x were determined volumetrically at 26°C. The reaction of the powders with water is observed at relative pressures above 0.2, where a small amount of oxygen desorption is detected. Temperature-programmed desorption spectra of the powders exposed to water vapour at 26, 120 and 200°C have two desorption peaks of water. One is due to the chemisorbed water and the other originates from the reacted hydroxide which is considered to be in the amorphous phase.Keywords
This publication has 14 references indexed in Scilit:
- Effect of humidity on chemical stability and superconductivity of YBa2Cu3O7−xJournal of Applied Physics, 1990
- Diffusion of OH− during hydration of YBa2Cu3O7-y by exposing to water vaporJournal of Materials Research, 1990
- Low-temperature sintering and gas desorption of gold ultrafine powdersJournal of the Less Common Metals, 1989
- Proton NMR in Degraded Powder of YBa2Cu3O7-δJapanese Journal of Applied Physics, 1988
- Interaction ofO with a high-temperature superconductorPhysical Review B, 1988
- Examination of Sorption-Desorption of Oxygen on YBa2Cu3O7-x Superconducting Oxide by TPD TechniqueJapanese Journal of Applied Physics, 1988
- Chemical-State Studies of Oxygen-Released Y-Ba-Cu OxideJapanese Journal of Applied Physics, 1987
- The use of temperature programmed desorption to study the removal of oxygen from the YBa2Cu3O7 superconductorMaterials Letters, 1987
- Determination of Oxygen Nonstoichiometry in a High-Tc Superconductor Ba2YCu3O7-δJapanese Journal of Applied Physics, 1987
- The Relation between the Amounts of Chemisorbed and Physisorbed Water on Zinc OxideBulletin of the Chemical Society of Japan, 1970