Jump to main content
Jump to site search

Themed collection Electrocatalysis - Fundamental Insights for Sustainable Energy

32 items
Editorial

Electrocatalysis

This themed issue presents a collection of articles on electrocatalysis.

Graphical abstract: Electrocatalysis
Perspective

Electrocatalysis on gold

This perspective article reviews recent advances in the study of important catalytic reactions on gold electrodes.

Graphical abstract: Electrocatalysis on gold
Perspective

Nanostructured carbon-based cathode catalysts for nonaqueous lithium–oxygen batteries

Structure–activity correlations of nanocarbon oxygen cathode catalysts for nonaqueous Li–O2 batteries are discussed, providing guidance for rational catalyst design.

Graphical abstract: Nanostructured carbon-based cathode catalysts for nonaqueous lithium–oxygen batteries
Communication

Alkaline O2 reduction on oxide-derived Au: high activity and 4e selectivity without (100) facets

Despite having no detectable (100) facets, oxide-derived Au electrodes have 4e O2 reduction activity that rivals (100)-rich Au cubes.

Graphical abstract: Alkaline O2 reduction on oxide-derived Au: high activity and 4e− selectivity without (100) facets
Communication

Engineering self-assembled N-doped graphene–carbon nanotube composites towards efficient oxygen reduction electrocatalysts

Tuning the composition of N-doped graphene–carbon nanotube composites can boost their electrocatalytic performance for the oxygen reduction reaction.

Graphical abstract: Engineering self-assembled N-doped graphene–carbon nanotube composites towards efficient oxygen reduction electrocatalysts
Open Access Communication

Electrocatalysis of hydrogen peroxide reactions on perovskite oxides: experiment versus kinetic modeling

A kinetic model sheds light on the mechanism of the hydrogen peroxide reactions on Mn- and Co-perovskite oxides.

Graphical abstract: Electrocatalysis of hydrogen peroxide reactions on perovskite oxides: experiment versus kinetic modeling
Paper

Insights into the electrocatalytic reduction of CO2 on metallic silver surfaces

The potential dependent activity and selectivity of CO2 electroreduction on polycrystalline silver surfaces are investigated, providing insights into mechanistic aspects, including C–C coupling.

Graphical abstract: Insights into the electrocatalytic reduction of CO2 on metallic silver surfaces
Paper

A density functional theory study of oxygen reduction reaction on non-PGM Fe–Nx–C electrocatalysts

First-principles density functional theory (DFT) calculations were performed to explain the stability of catalytically active sites in Fe–Nx–C electrocatalysts, their ORR activity and ORR mechanism.

Graphical abstract: A density functional theory study of oxygen reduction reaction on non-PGM Fe–Nx–C electrocatalysts
Paper

The influence of reactive side products on the electrooxidation of methanol – a combined in situ infrared spectroscopy and online mass spectrometry study

The impact of formaldehyde and formic acid on the electrooxidation of methanol is studied by in situ infrared spectroscopy and online mass spectrometry revealing a non-additive behavior.

Graphical abstract: The influence of reactive side products on the electrooxidation of methanol – a combined in situ infrared spectroscopy and online mass spectrometry study
Paper

Electrocatalytic activity of various types of h-BN for the oxygen reduction reaction

Enhancement of oxygen reduction reaction activity of a Au electrode by modification with various types of BN nanostructure.

Graphical abstract: Electrocatalytic activity of various types of h-BN for the oxygen reduction reaction
Open Access Paper

The influence of a fibrous carbon envelope on the formation of CoFe nanoparticles for durable electrocatalytic oxygen evolution

Non-precious metal electrocatalyst: CoFe particles surrounded by fibrous carbon for the elongated stability of oxygen evolution from water molecules.

Graphical abstract: The influence of a fibrous carbon envelope on the formation of CoFe nanoparticles for durable electrocatalytic oxygen evolution
Open Access Paper

Towards the elucidation of the high oxygen electroreduction activity of PtxY: surface science and electrochemical studies of Y/Pt(111)

Insight into the high oxygen electroreduction activity of PtxY by studying single crystal Y/Pt(111).

Graphical abstract: Towards the elucidation of the high oxygen electroreduction activity of PtxY: surface science and electrochemical studies of Y/Pt(111)
Open Access Paper

Effect of ordering of PtCu3 nanoparticle structure on the activity and stability for the oxygen reduction reaction

The performance enhancement effect of structural ordering for the oxygen reduction reaction (ORR) on the PtCu3 nanoparticulate system is systematically studied.

Graphical abstract: Effect of ordering of PtCu3 nanoparticle structure on the activity and stability for the oxygen reduction reaction
Paper

In situ back-side illumination fluorescence XAFS (BI-FXAFS) studies on platinum nanoparticles deposited on a HOPG surface as a model fuel cell: a new approach to the Pt-HOPG electrode/electrolyte interface

We measured the in situ polarization-dependent X-ray absorption fine structure of PtNPs deposited on a flat HOPG substrate.

Graphical abstract: In situ back-side illumination fluorescence XAFS (BI-FXAFS) studies on platinum nanoparticles deposited on a HOPG surface as a model fuel cell: a new approach to the Pt-HOPG electrode/electrolyte interface
Paper

Alkali cation specific adsorption onto fcc(111) transition metal electrodes

Density functional theory suggests alkali metal specific adsorption may compete with hydrogen on some metal electrodes in alkaline electrolytes.

Graphical abstract: Alkali cation specific adsorption onto fcc(111) transition metal electrodes
Paper

Density functional theory study of carbon dioxide electrochemical reduction on the Fe(100) surface

The CO2 electroreduction mechanism and electrode stability on Fe(100) electrocatalysts is examined with density functional theory.

Graphical abstract: Density functional theory study of carbon dioxide electrochemical reduction on the Fe(100) surface
Paper

Tuning the oxygen reduction activity of the Pt–Ni nanoparticles upon specific anion adsorption by varying heat treatment atmospheres

A proper heat treatment atmosphere decisively influenced the oxygen reduction reaction, particularly upon specific anion adsorption from the half-cell to single-cell scale.

Graphical abstract: Tuning the oxygen reduction activity of the Pt–Ni nanoparticles upon specific anion adsorption by varying heat treatment atmospheres
Open Access Paper

On the faradaic selectivity and the role of surface inhomogeneity during the chlorine evolution reaction on ternary Ti–Ru–Ir mixed metal oxide electrocatalysts

Faradaic selectivity of the chlorine and oxygen evolution (left) is linked to the spatial inhomogeneity of the surface reactivity of Ti–Ru–Ir mixed metal oxide catalysts.

Graphical abstract: On the faradaic selectivity and the role of surface inhomogeneity during the chlorine evolution reaction on ternary Ti–Ru–Ir mixed metal oxide electrocatalysts
Paper

Structural effects on the oxygen reduction reaction on the high index planes of Pt3Co

Structural effects on the activity for the oxygen reduction reaction on the high index planes of Pt3Co.

Graphical abstract: Structural effects on the oxygen reduction reaction on the high index planes of Pt3Co
Paper

Specific adsorption of perchlorate anions on Pt{hkl} single crystal electrodes

Perchlorate anion adsorption inhibits the oxygen reduction reaction on Pt{hkl} electrodes in aqueous perchloric acid due to weak specific adsorption.

Graphical abstract: Specific adsorption of perchlorate anions on Pt{hkl} single crystal electrodes
Paper

Mechanistic and kinetic implications on the ORR on a Au(100) electrode: pH, temperature and H–D kinetic isotope effects

The potential determining reaction and the rate-determining step for the ORR on Au(100) in acidic and alkaline solution have been clarified.

Graphical abstract: Mechanistic and kinetic implications on the ORR on a Au(100) electrode: pH, temperature and H–D kinetic isotope effects
Paper

A density functional theory study of catalytic sites for oxygen reduction in Fe/N/C catalysts used in H2/O2 fuel cells

The oxygen reduction catalytic activity of carbon-supported FeN4 moieties bridging micropores between two graphene sheets was investigated by density functional theory (DFT).

Graphical abstract: A density functional theory study of catalytic sites for oxygen reduction in Fe/N/C catalysts used in H2/O2 fuel cells
Paper

Following ORR intermediates adsorbed on a Pt cathode catalyst during break-in of a PEM fuel cell by in operando X-ray absorption spectroscopy

In operando X-ray absorption spectroscopy data using the Δμ X-ray Absorption Near Edge Spectroscopy (XANES) analysis procedure is used to follow the ORR intermediate adsorbate coverage on a working catalyst in a PEMFC during initial activation and break-in.

Graphical abstract: Following ORR intermediates adsorbed on a Pt cathode catalyst during break-in of a PEM fuel cell by in operando X-ray absorption spectroscopy
Paper

Terpyridine complexes of first row transition metals and electrochemical reduction of CO2 to CO

Homoleptic terpyridine complexes of 3d transition metals are found to electrocatalytically reduce CO2 to either CO or tuneable CO–H2 mixtures.

Graphical abstract: Terpyridine complexes of first row transition metals and electrochemical reduction of CO2 to CO
Paper

Elucidating the activity of stepped Pt single crystals for oxygen reduction

The activity of stepped Pt can be described by a Sabatier type volcano, according to a voltammetric analysis.

Graphical abstract: Elucidating the activity of stepped Pt single crystals for oxygen reduction
Paper

Beyond the volcano limitations in electrocatalysis – oxygen evolution reaction

Oxygen evolution catalysis is restricted by the interdependence of adsorption energies of the reaction intermediates and the surface reactivity.

Graphical abstract: Beyond the volcano limitations in electrocatalysis – oxygen evolution reaction
Paper

Pt nanoparticles supported on Sb-doped SnO2 porous structures: developments and issues

Control of the metal oxide surface properties leads in the case of Sb–SnO2 to a support material for Pt nanoparticles with tailored catalyst corrosion stability and activity.

Graphical abstract: Pt nanoparticles supported on Sb-doped SnO2 porous structures: developments and issues
Paper

Electrocatalytic oxygen reduction kinetics on Fe-center of nitrogen-doped graphene

OOH dissociation is the key step in electrocatalytic oxygen reduction on Fe–N centers of graphite, as revealed from first principles.

Graphical abstract: Electrocatalytic oxygen reduction kinetics on Fe-center of nitrogen-doped graphene
Open Access Paper

Formic acid electrooxidation on thallium-decorated shape-controlled platinum nanoparticles: an improvement in electrocatalytic activity

Thallium deposited on Pt nanoparticles catalyzes formic acid electrooxidation.

Graphical abstract: Formic acid electrooxidation on thallium-decorated shape-controlled platinum nanoparticles: an improvement in electrocatalytic activity
Paper

Halide adsorption on close-packed metal electrodes

In this study, we provide a complete picture of how adatoms can reduce the work function of a metal surface by contrasting two independent mechanisms.

Graphical abstract: Halide adsorption on close-packed metal electrodes
Paper

High activity of cubic PtRh alloys supported on graphene towards ethanol electrooxidation

Cubic PtRh alloys supported on graphene (PtxRhy/GN) possess enhanced activity and high selectivity for ethanol electrooxidation.

Graphical abstract: High activity of cubic PtRh alloys supported on graphene towards ethanol electrooxidation
Paper

Electronic modification of Pt via Ti and Se as tolerant cathodes in air-breathing methanol microfluidic fuel cells

We reported herein on the use of novel tolerant cathode catalysts: PtxTiy and/or PtxSey. Their prospective use as nanomaterials in an air-breathing methanol microfluidic fuel cells (laminar flow, and mixed reactant mode) is demonstrated.

Graphical abstract: Electronic modification of Pt via Ti and Se as tolerant cathodes in air-breathing methanol microfluidic fuel cells
32 items

About this collection

Electrocatalysis deals with the catalysis of redox reactions and is a key discipline for the development for energy storage, fuel cells, solar fuels, and all other electrochemical devices, in which the control of interfacial charge transfer reactions plays an important role. With the projected future “electrification” of our society through solar and wind power, the conversion of electricity to chemical bonds and vice versa will be an essential field of physical chemistry in the decades to come. Basic fundamental understanding of these processes, both in model studies and at a more device level, requires detailed quantitative physical-chemistry approaches. Therefore, an issue of PCCP dealing with a physical chemistry approach to electrocatalysis, balancing fundamental and more applied studies, is timely, and will have a significant impact on the future directions of this important field.

Spotlight

Advertisements