Athanasios A. Papaderakis
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View article: Hydrogen induced superhydrophilicity in an amorphous CrFeNi-based multi-principal element alloy thin film
Hydrogen induced superhydrophilicity in an amorphous CrFeNi-based multi-principal element alloy thin film Open
The compelling nature of the highly adapted functional surface structures found in biological systems accompanied by delicately tuned chemical processes, has inspired the design of materials with varied wetting properties and a vast range …
View article: Bimetallic Ag–Au nanoparticles from nanoconfinement: adjusting properties by electrochemical synthesis
Bimetallic Ag–Au nanoparticles from nanoconfinement: adjusting properties by electrochemical synthesis Open
Synthesis of Ag–Au nanoparticles of different sizes, compositions, element configurations (alloy- and core–shell-like) and electrocatalytic activities by using precursor-loaded PS–P2VP reverse micelles as nanoreactors.
View article: Front Cover: Electrowetting of Carbon‐based Materials for Advanced Electrochemical Technologies (ChemElectroChem 10/2024)
Front Cover: Electrowetting of Carbon‐based Materials for Advanced Electrochemical Technologies (ChemElectroChem 10/2024) Open
The Front Cover picture illustrates the change in contact angle of an electrolyte droplet resting on the surface of a graphene sheet and a graphite-based porous structure upon external application of a potential bias. The phenomenon, refer…
View article: Electrowetting of Carbon‐based Materials for Advanced Electrochemical Technologies
Electrowetting of Carbon‐based Materials for Advanced Electrochemical Technologies Open
Wetting phenomena underpin a plethora of key processes occurring in nature and artificial systems. Subtle control over wetting can boost the performance of devices with applications in diverse technologies, spanning electrochemical energy …
View article: Measuring the Capacitance of Carbon in Ionic Liquids: From Graphite to Graphene
Measuring the Capacitance of Carbon in Ionic Liquids: From Graphite to Graphene Open
The physical electrochemistry of the carbon/ionic liquids interface underpins the processes occurring in a vast range of applications spanning electrochemical energy storage, iontronic devices, and lubrication. Elucidating the charge stora…
View article: Nanosized Chevrel phases for dendrite-free zinc–ion based energy storage: unraveling the phase transformations
Nanosized Chevrel phases for dendrite-free zinc–ion based energy storage: unraveling the phase transformations Open
Nanoscale tailoring of Chevrel phase Mo 6 S 8 unveils its properties as a host for zinc ions. Rapid ion transport, coupled with the emergence of a previously unknown phase, transform the understanding of zinc ion (de)intercalation in these…
View article: Electrowetting on glassy carbon substrates
Electrowetting on glassy carbon substrates Open
Electrowetting on a glassy carbon substrate is demonstrated. The process is irreversible, in contrast to earlier observations of reversible wetting seen with basal plane graphite.
View article: Relation between Double Layer Structure, Capacitance, and Surface Tension in Electrowetting of Graphene and Aqueous Electrolytes
Relation between Double Layer Structure, Capacitance, and Surface Tension in Electrowetting of Graphene and Aqueous Electrolytes Open
Deciphering the mechanisms of charge storage on carbon-based materials is pivotal for the development of next-generation electrochemical energy storage systems. Graphene, the building block of graphitic electrodes, is an ideal model for pr…
View article: Relation between double layer structure, capacitance and surface tension in electrowetting of graphene and aqueous electrolytes
Relation between double layer structure, capacitance and surface tension in electrowetting of graphene and aqueous electrolytes Open
Deciphering the mechanisms of charge storage on carbon-based materials is pivotal for the development of next generation electrochemical energy storage systems. Graphene, the building block of graphitic electrodes, is an ideal model for pr…
View article: Relation between double layer structure, capacitance and surface tension in electrowetting of graphene and aqueous electrolytes
Relation between double layer structure, capacitance and surface tension in electrowetting of graphene and aqueous electrolytes Open
Deciphering the mechanisms of charge storage on carbon-based materials is pivotal for the development of next generation electrochemical energy storage systems. Graphene, the building block for graphitic electrodes, is an ideal model for p…
View article: Anion Intercalation into Graphite Drives Surface Wetting
Anion Intercalation into Graphite Drives Surface Wetting Open
The unique layered structure of graphite with its tunable interlayer distance establishes almost ideal conditions for the accommodation of ions into its structure. The smooth and chemically inert nature of the graphite surface also means t…
View article: A Low‐Temperature Synthetic Route Toward a High‐Entropy 2D Hexernary Transition Metal Dichalcogenide for Hydrogen Evolution Electrocatalysis
A Low‐Temperature Synthetic Route Toward a High‐Entropy 2D Hexernary Transition Metal Dichalcogenide for Hydrogen Evolution Electrocatalysis Open
High‐entropy (HE) metal chalcogenides are a class of materials that have great potential in applications such as thermoelectrics and electrocatalysis. Layered 2D transition‐metal dichalcogenides (TMDCs) are a sub‐class of high entropy meta…
View article: The renaissance of electrowetting
The renaissance of electrowetting Open
Control of wetting on conducting surfaces using external stimuli such as electricity, underlies the operation of devices in a broad range of technologies including micro-/nano-fluidics, energy conversion/storage and filtration systems. Ele…
View article: Dielectric-free electrowetting on graphene
Dielectric-free electrowetting on graphene Open
Electrowetting on graphene substrates is studied as a function of electrolyte identity and graphene layer number; the response observed is contrasted with that seen on the bulk material (graphite).
View article: Taming Electrowetting Using Highly Concentrated Aqueous Solutions
Taming Electrowetting Using Highly Concentrated Aqueous Solutions Open
Wetting of carbon surfaces is one of the most widespread, yet poorly understood, physical phenomena. Control over wetting properties underpins the operation of aqueous energy-storage devices and carbon-based filtration systems. Electrowett…
View article: Nanocubes of Mo<sub>6</sub>S<sub>8</sub> Chevrel phase as active electrode material for aqueous lithium-ion batteries
Nanocubes of Mo<sub>6</sub>S<sub>8</sub> Chevrel phase as active electrode material for aqueous lithium-ion batteries Open
Elgendy et al. , investigate the performance of nanostructured Chevrel Phase Mo 6 S 8 electrodes as an anode material for aqueous lithium ion batteries.
View article: The electrochemical double layer at the graphene/aqueous electrolyte interface: what we can learn from simulations, experiments, and theory
The electrochemical double layer at the graphene/aqueous electrolyte interface: what we can learn from simulations, experiments, and theory Open
The structure of the electrical-double layer of the graphene/aqueous–electrolyte interface is challenging to model and characterize experimentally. Here we review the published data and discuss their interpretation in the context of the ED…
View article: Nanoscale Chevrel-Phase Mo<sub>6</sub>S<sub>8</sub> Prepared by a Molecular Precursor Approach for Highly Efficient Electrocatalysis of the Hydrogen Evolution Reaction in Acidic Media
Nanoscale Chevrel-Phase Mo<sub>6</sub>S<sub>8</sub> Prepared by a Molecular Precursor Approach for Highly Efficient Electrocatalysis of the Hydrogen Evolution Reaction in Acidic Media Open
Developing a simple, safe, and efficient route for the preparation of nanoparticulate ternary Chevrel phases MxMo6S8 (CPs; where M = metal) is of great interest because of their applications in energy conversion and storage technologies. C…
View article: High-Performance Nanostructured MoS<sub>2</sub> Electrodes with Spontaneous Ultralow Gold Loading for Hydrogen Evolution
High-Performance Nanostructured MoS<sub>2</sub> Electrodes with Spontaneous Ultralow Gold Loading for Hydrogen Evolution Open
The scarcity and cost of noble metals used in commercial electrolyzers limit the sustainability and scalability of water electrolysis for green hydrogen production. Herein, we report the ultralow loading of Au nanoparticles onto MoS2 elect…
View article: The Effect of Carbon Content on Methanol Oxidation and Photo-Oxidation at Pt-TiO2-C Electrodes
The Effect of Carbon Content on Methanol Oxidation and Photo-Oxidation at Pt-TiO2-C Electrodes Open
The oxidation of methanol is studied at TiO2-supported Pt electrodes of varied high surface area carbon content (in the 30-5% w/w range) and C÷Ti atom ratio (in the 3.0-0.4 ratio). The Pt-TiO2 catalyst is prepared by a photo-deposition pro…
View article: Formation and reduction of anodic film on polycrystalline Bi electrode in pure methanol solutions
Formation and reduction of anodic film on polycrystalline Bi electrode in pure methanol solutions Open
The processes of film formation and reduction of bismuth in pure methanol are phenomenologically studied by means of cyclic, ac voltammetric and electrochemical impedance spectroscopic methods. Film formation takes place under low electrod…
View article: Oxygen Evolution Reaction at IrO2/Ir(Ni) Film Electrodes Prepared by Galvanic Replacement and Anodization: Effect of Precursor Ni Film Thickness
Oxygen Evolution Reaction at IrO2/Ir(Ni) Film Electrodes Prepared by Galvanic Replacement and Anodization: Effect of Precursor Ni Film Thickness Open
IrO2/Ir(Ni) film electrodes of variable Ni content have been prepared via a galvanic replacement method, whereby surface layers of pre-deposited Ni are replaced by Ir, followed by electrochemical anodization. Electrodeposition of Ni on a g…
View article: Electrocatalysts Prepared by Galvanic Replacement
Electrocatalysts Prepared by Galvanic Replacement Open
Galvanic replacement is the spontaneous replacement of surface layers of a metal, M, by a more noble metal, Mnoble, when the former is treated with a solution containing the latter in ionic form, according to the general replacement reacti…
View article: Methanol oxidation at platinized copper particles prepared by galvanic replacement
Methanol oxidation at platinized copper particles prepared by galvanic replacement Open
Bimetallic Pt-Cu particles have been prepared by galvanic replacement of Cu precursor nanoparticles, upon the treatment of the latter with a chloro-platinate acidic solution. The resulting particles, typically a few tens of nm large, were …