The effect of hydrogen on the breakdown of the protective oxide scale in solid oxide fuel cell interconnects
Journal article, 2021

In this study, the effect of hydrogen, on the degradation of AISI 441 interconnect, under solid oxide fuel cell operating conditions was investigated between 500−800 °C for 336 h. As a new hypothesis, it is concluded that, hydrogen impedes Cr diffusion, probably in the grain boundaries, leading to the breakdown of the protective oxide scale. This effect is most severe at 600 °C, while at lower or higher temperatures the effect is attenuated. Cr diffusion is enhanced at high temperatures, whereas protective scales can be obtained at low temperatures with a lower amount of Cr.

Interconnect

Dual

Solid oxide fuel cell

AISI 441

Corrosion

Atmosphere

Hydrogen

Author

Kerem Gündüz

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Gebze Teknik Universitesi

Anton Chyrkin

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Claudia Goebel

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Lukas Hansen

Student at Chalmers

Oscar Hjorth

Student at Chalmers

Jan-Erik Svensson

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Jan Froitzheim

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Corrosion Science

0010-938X (ISSN)

Vol. 179 109112

Subject Categories

Ceramics

Chemical Process Engineering

Other Chemical Engineering

DOI

10.1016/j.corsci.2020.109112

More information

Latest update

1/5/2021 2