{"title":"Organic fuels oxidation: A common misunderstanding related to non-noble fuel cell catalysts","authors":"","doi":"10.1016/j.coelec.2024.101567","DOIUrl":null,"url":null,"abstract":"<div><p>This opinion addresses a basic impossibility to use Ni-containing and similar mediator electrocatalysts for fuel cell anodes if the fuel is organic, and air (or oxygen) is the oxidant. The reason is that oxidation onset potential is always higher than O<sub>2</sub>/H<sub>2</sub>O equilibrium potential. These anodes can operate in fuel cells with peroxide, but the voltages reported for direct urea peroxide fuel cells demonstrate contradiction with urea oxidation onset potentials. Ni-containing anodes for “boosting” in water electrolysis and in electrochemical reforming present more heathy research branch.</p></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":null,"pages":null},"PeriodicalIF":7.9000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Opinion in Electrochemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2451910324001285","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
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Abstract
This opinion addresses a basic impossibility to use Ni-containing and similar mediator electrocatalysts for fuel cell anodes if the fuel is organic, and air (or oxygen) is the oxidant. The reason is that oxidation onset potential is always higher than O2/H2O equilibrium potential. These anodes can operate in fuel cells with peroxide, but the voltages reported for direct urea peroxide fuel cells demonstrate contradiction with urea oxidation onset potentials. Ni-containing anodes for “boosting” in water electrolysis and in electrochemical reforming present more heathy research branch.
期刊介绍：
The development of the Current Opinion journals stemmed from the acknowledgment of the growing challenge for specialists to stay abreast of the expanding volume of information within their field. In Current Opinion in Electrochemistry, they help the reader by providing in a systematic manner:
1.The views of experts on current advances in electrochemistry in a clear and readable form.
2.Evaluations of the most interesting papers, annotated by experts, from the great wealth of original publications.
In the realm of electrochemistry, the subject is divided into 12 themed sections, with each section undergoing an annual review cycle:
• Bioelectrochemistry • Electrocatalysis • Electrochemical Materials and Engineering • Energy Storage: Batteries and Supercapacitors • Energy Transformation • Environmental Electrochemistry • Fundamental & Theoretical Electrochemistry • Innovative Methods in Electrochemistry • Organic & Molecular Electrochemistry • Physical & Nano-Electrochemistry • Sensors & Bio-sensors •
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