Article
Version 1
Preserved in Portico This version is not peer-reviewed
Nernst Voltage Loss in Oxyhydrogen Fuel Cells
Version 1
: Received: 4 September 2018 / Approved: 4 September 2018 / Online: 4 September 2018 (11:56:23 CEST)
A peer-reviewed article of this Preprint also exists.
Lyu, J.; Kudiiarov, V.; Lider, A. Corrections of Voltage Loss in Hydrogen-Oxygen Fuel Cells. Batteries 2020, 6, 9. Lyu, J.; Kudiiarov, V.; Lider, A. Corrections of Voltage Loss in Hydrogen-Oxygen Fuel Cells. Batteries 2020, 6, 9.
Abstract
Normally, the Nernst voltage calculated from the concentration of the reaction gas in the flow channel is considered to be the ideal voltage (reversible voltage) of the oxyhydrogen fuel cell, but actually it will cause a concentration gradient when the reaction gas flows from the flow channel through the gas diffusion layer to the catalyst layer. The Nernst voltage loss in fuel cells in most of the current literature is thought to be due to the difference in concentration of reaction gas in the flow channel and concentration of reaction gas on the catalyst layer at the time when the high net current density is generated. Based on the Butler-Volmer equation in oxyhydrogen fuel cell, this paper demonstrates that the Nernst voltage loss is caused by the concentration difference of reaction gas in flow channel and on the catalytic layer at the time when equilibrium potential (Galvanic potential) of each electrode is generated.
Keywords
Nernst voltage; activation overvoltage; concentration loss; equilibrium potential; exchange current density; net current density
Subject
Chemistry and Materials Science, Electrochemistry
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment
