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Coatings
Volume 14
Issue 7
10.3390/coatings14070796
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Open AccessArticle
by Michihisa f*ckumoto SciProfiles Scilit Preprints.org Google Scholar Hiroki Takahashi SciProfiles Scilit Preprints.org Google Scholar Dawid Kutyła SciProfiles Scilit Preprints.org Google Scholar Marek Wojnicki SciProfiles Scilit Preprints.org Google Scholar Piotr Żabiński SciProfiles Scilit Preprints.org Google Scholar 
Michihisa f*ckumoto
, Hiroki TakahashiDawid Kutyła, Marek Wojnicki and Piotr Żabiński
Coatings 2024, 14(7), 796; https://doi.org/10.3390/coatings14070796
Submission received: 30 May 2024 / Revised: 17 June 2024 / Accepted: 24 June 2024 / Published: 26 June 2024
(This article belongs to the Special Issue Coatings as Key Materials in Catalytic Applications)
Abstract
The goal of this research is to fabricate a novel type of highly active porous electrode material, based on stainless steel and dedicated to water electrolyzers. The main novelty of the presented work is the innovative application of the molten salts treatment, which allows the design of a highly developed porous structure, which characterizes significantly higher catalytic activity than untreated steel substrates. The equimolar mixture of NaCl and KCl with 3.5 mol% AlF3 was used as the molten salt. The surface modification procedure includes the deposition of an Al layer with application at the potential of −1.8 V and following dissolution at −0.9 V, to create a porous alloy surface. The cathodic polarization measurements of the prepared porous stainless steel electrodes were measured in a 10 mass% KOH solution. Moreover, the amount of hydrogen generated during constant voltage electrolysis with a hydrogen sensor in situ was also measured. The porous stainless steel alloy showed higher current density at lower potentials in the cathodic polarization compared to untreated stainless steel. The cathodic polarization measurements in alkaline solution showed that the porous 304 stainless steel alloy is an excellent cathode material.
Keywords: molten salts modification; porous electrodes; stainless steel; hydrogen production; gas sensor
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MDPI and ACS Style
f*ckumoto, M.; Takahashi, H.; Kutyła, D.; Wojnicki, M.; Żabiński, P. Catalytic Activity Evaluation of Molten Salt-Treated Stainless Steel Electrodes for Hydrogen Evolution Reaction in Alkaline Medium. Coatings 2024, 14, 796. https://doi.org/10.3390/coatings14070796
AMA Style
f*ckumoto M, Takahashi H, Kutyła D, Wojnicki M, Żabiński P. Catalytic Activity Evaluation of Molten Salt-Treated Stainless Steel Electrodes for Hydrogen Evolution Reaction in Alkaline Medium. Coatings. 2024; 14(7):796. https://doi.org/10.3390/coatings14070796
Chicago/Turabian Style
f*ckumoto, Michihisa, Hiroki Takahashi, Dawid Kutyła, Marek Wojnicki, and Piotr Żabiński. 2024. "Catalytic Activity Evaluation of Molten Salt-Treated Stainless Steel Electrodes for Hydrogen Evolution Reaction in Alkaline Medium" Coatings 14, no. 7: 796. https://doi.org/10.3390/coatings14070796
Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.
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MDPI and ACS Style
f*ckumoto, M.; Takahashi, H.; Kutyła, D.; Wojnicki, M.; Żabiński, P. Catalytic Activity Evaluation of Molten Salt-Treated Stainless Steel Electrodes for Hydrogen Evolution Reaction in Alkaline Medium. Coatings 2024, 14, 796. https://doi.org/10.3390/coatings14070796
AMA Style
f*ckumoto M, Takahashi H, Kutyła D, Wojnicki M, Żabiński P. Catalytic Activity Evaluation of Molten Salt-Treated Stainless Steel Electrodes for Hydrogen Evolution Reaction in Alkaline Medium. Coatings. 2024; 14(7):796. https://doi.org/10.3390/coatings14070796
Chicago/Turabian Style
f*ckumoto, Michihisa, Hiroki Takahashi, Dawid Kutyła, Marek Wojnicki, and Piotr Żabiński. 2024. "Catalytic Activity Evaluation of Molten Salt-Treated Stainless Steel Electrodes for Hydrogen Evolution Reaction in Alkaline Medium" Coatings 14, no. 7: 796. https://doi.org/10.3390/coatings14070796
Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.
Coatings, EISSN 2079-6412, Published by MDPI
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