The Structure Stability of Metal Diffusion Membrane-Filters in the Processes of Hydrogen Absorption/Desorption

Akimova, O.V.; Svetogorov, R.D.; Ovcharov, A.V.; Roshan, N.R.

Авторы: Akimova Olga V., Svetogorov Roman D., Ovcharov Alexey V., Roshan Nataliya R.
Журнал: Membranes
Том: 12
Номер: 11
Год издания: 2022
Издательство: MDPI Publishing
Местоположение издательства: Basel, Switzerland, Switzerland
DOI: 10.3390/membranes12111132
Аннотация: The evolution of a nanostructured state of palladium—lead membrane alloys during their interaction with hydrogen was studied using precision X-ray diffraction with synchrotron radiation (SR) and scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDXS). The importance of this topic is due to the need and demand for improving the performance characteristics of dense metal diffusion filters for high purity hydrogen separation processes. Palladium-based membrane filters with lead concentrations of 5 and 20 wt.% were prepared via electric arc melting from high purity metals (99.95%). The thickness of the filters was 50 μm. Hydrogenation was carried out from a gas medium at 573 K and the pressure of 16 atm. within 150 min. The focus of the study is on the structural state of diffusion filter membranes depending on the content of the palladium-alloying element—lead—and on analysis of the substructure of alloys before and 5300 h relaxation after hydrogenation is carried out. Specific features of the surface morphology and the structure of the membrane filters depending on the concentration of lead in the alloys are determined. The formation and development of deformation processes in metal systems upon the hydrogenation is shown. The establishment of peculiarities of hydrogen interaction with metals will contribute to obtaining new potentially important characteristics of membrane filters.
Добавил в систему: Акимова Ольга Владимировна

	ИСТИНА	Войти в систему Регистрация
	ИСТИНА ИНХС РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИСТИНА ИНХС РАН

The Structure Stability of Metal Diffusion Membrane-Filters in the Processes of Hydrogen Absorption/Desorptionстатья

Прикрепленные файлы