Solid-Oxide Electrochemical Cell for Determining the Diffusion of Hydrogen in Nitrogen at High Temperatures


Citar

Texto integral

Acesso aberto Acesso aberto
Acesso é fechado Acesso está concedido
Acesso é fechado Somente assinantes

Resumo

Procedure was developed for measuring the diffusion coefficient of hydrogen in its mixture with nitrogen in the temperature range 450–600°C under atmospheric pressure. This is done in an electrochemical cell based on a solid-oxide electrolyte with proton conductivity of composition BaCe0.7Zr0.1Y0.2O3–δ. The procedure makes it possible to trace how the hydrogen diffusion coefficient varies with temperature and hydrogen concentration in nitrogen. It is shown that the hydrogen diffusion coefficient grows with increasing hydrogen concentration, its temperature dependence is of power-law type with n = 1.5, and it is in satisfactory agreement with the theoretical temperature dependence

Sobre autores

A. Kalyakin

Institute of High-Temperature Electrochemistry, Ural Branch

Autor responsável pela correspondência
Email: djoni260490@yandex.ru
Rússia, Yekaterinburg, 620990

A. Volkov

Institute of High-Temperature Electrochemistry, Ural Branch

Email: djoni260490@yandex.ru
Rússia, Yekaterinburg, 620990

E. Belousov

Institute of High-Temperature Electrochemistry, Ural Branch; Ural Federal University named after the first President of Russia B.N. Yeltsin

Email: djoni260490@yandex.ru
Rússia, Yekaterinburg, 620990; Yekaterinburg, 620144

Arquivos suplementares

Arquivos suplementares
Ação
1. JATS XML

Declaração de direitos autorais © Pleiades Publishing, Ltd., 2018