In-Liquid Plasma Modified Nickel Foam: NiOOH/NiFeOOH Active Site Multiplication for Electrocatalytic Alcohol, Aldehyde, and Water Oxidation

Jan Niklas Hausmann; Pramod V. Menezes; Gonela VijaykumarKonstantin LaunThomas DiemantIngo ZebgerTimo JacobMatthias DriessPrashanth W. Menezes

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In-Liquid Plasma Modified Nickel Foam: NiOOH/NiFeOOH Active Site Multiplication for Electrocatalytic Alcohol, Aldehyde, and Water Oxidation

机译：In-Liquid Plasma Modified Nickel Foam: NiOOH/NiFeOOH Active Site Multiplication for Electrocatalytic Alcohol, Aldehyde, and Water Oxidation

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The oxygen evolution reaction (OER) and the value-added oxidation ofrenewable organic substrates are critical to supply electrons and protons for thesynthesis of sustainable fuels. To meet industrial requirements, new methodsfor a simple, fast, environmental-friendly and cheap synthesis of robust,self-supported and high surface area electrodes are required. Herein, a novelin-liquid plasma (plasma electrolysis) approach for the growth of hierarchicalnanostructures on nickel foam is reported on. Under morphology retention,iron can be doped into this high surface area electrode. For the oxidation of5-(hydroxymethyl)furfural and benzyl alcohol, the iron-free, plasma-treatedelectrode is more suitable reaching current densities up to 800 mA cm~(?2) withFaradaic efficiencies above 95%. For the OER, the iron-doped nickel foamelectrode reaches the industrially relevant current density of 500 mA cm~(?2)at 1.473 ± 0.013 VRHE (60℃) and shows no activity decrease over 140 h. Thedifferent effects of iron doping are rationalized using methanol probing and insitu Raman spectroscopy. Furthermore, the intrinsic activity is separated fromthe number of active sites, and, for the organic oxidation reactions, diffusionlimitations are revealed. The authors anticipate that the plasma modified nickelfoam will be suitable for various (electro)catalytic processes.

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《Advanced energy materials》 |2022年第38期|2202098.1-2202098.13|共13页
作者
Jan Niklas Hausmann; Pramod V. Menezes; Gonela VijaykumarKonstantin LaunThomas DiemantIngo ZebgerTimo JacobMatthias DriessPrashanth W. Menezes;
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Department of Chemistry, Metalorganics and Inorganic MaterialsTechnische Universitaet BerlinStrasse des 17 Juni 135, Sekr. C2, 10623 Berlin, Germany;

Institute of ElectrochemistryUlm UniversityAlbert-Einstein-Allee 47, 89081 Ulm, Germany;

Department of ChemistryPhysical Chemistry/Biophysical ChemistryTechnische Universitaet BerlinStrasse des 17. Juni 135, Sekr. PC14, 10623 Berlin, GermanyHelmholtz-Institute Ulm (HIU) Electrochemical Energy StorageHelmholtzstrasse 11, 89081 Ulm, GermanyInstitute of ElectrochemistryUlm UniversityAlbert-Einstein-Allee 47, 89081 Ulm, Germany Helmholtz-Institute Ulm (HIU) Electrochemical Energy StorageHelmholtzstrasse 11, 89081 Ulm, Germany Karlsruhe Institute of Technology (KIT)P.O. Box 3640, 76021 KarlsruDepartment of Chemistry, Metalorganics and Inorganic MaterialsTechnische Universitaet BerlinStrasse des 17 Juni 135, Sekr. C2, 10623 Berlin, Germany Material Chemistry Group for Thin Film Catalysis–CatLabHelmholtz-Zentrum Berlin für Materialien und Energi;

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5-(hydroxymethyl)furfural oxidation; benzyl alcohol oxidation; gamma-NiFeOOH; in-liquid oxygen plasma; nickel foam; nickel-iron oxyhydroxides; oxygen evolution reaction;

In-Liquid Plasma Modified Nickel Foam: NiOOH/NiFeOOH Active Site Multiplication for Electrocatalytic Alcohol, Aldehyde, and Water Oxidation

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