Asset Details
Do you wish to reserve the book?
Concerning the stability of seawater electrolysis: a corrosion mechanism study of halide on Ni-based anode
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Concerning the stability of seawater electrolysis: a corrosion mechanism study of halide on Ni-based anode
Do you wish to request the book?
Concerning the stability of seawater electrolysis: a corrosion mechanism study of halide on Ni-based anode
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Concerning the stability of seawater electrolysis: a corrosion mechanism study of halide on Ni-based anode
2023
Overview
The corrosive anions (e.g., Cl
−
) have been recognized as the origins to cause severe corrosion of anode during seawater electrolysis, while in experiments it is found that natural seawater (~0.41 M Cl
−
) is usually more corrosive than simulated seawater (~0.5 M Cl
−
). Here we elucidate that besides Cl
−
, Br
−
in seawater is even more harmful to Ni-based anodes because of the inferior corrosion resistance and faster corrosion kinetics in bromide than in chloride. Experimental and simulated results reveal that Cl
−
corrodes locally to form narrow-deep pits while Br
−
etches extensively to generate shallow-wide pits, which can be attributed to the fast diffusion kinetics of Cl
−
and the lower reaction energy of Br
−
in the passivation layer. Additionally, for the Ni-based electrodes with catalysts (e.g., NiFe-LDH) loading on the surface, Br
−
causes extensive spalling of the catalyst layer, resulting in rapid performance degradation. This work clearly points out that, in addition to anti-Cl
−
corrosion, designing anti-Br
−
corrosion anodes is even more crucial for future application of seawater electrolysis.
It is known that chloride anions cause severe anode corrosion during seawater electrolysis. Here we found that bromide in seawater is even more harmful to Ni-based anodes, causing the spalling of the catalyst layer and the formation of shallow-wide pits on the substrate, leading to performance degradation.
