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Evaluation of the intrinsic kinetic activity of nanoparticle ensembles under steady-state conditions
(Elsevier, 2011-01)
We report theory and strategies for evaluating the intrinsic kinetic activity for oxygen reduction at Pt nanoparticle (NP) ensembles on a large glassy carbon electrode (GCE) under steady-state conditions. Pt NPs were ...
Nanoparticle ensemble electrodes: fabrication by short-pulse sputtering and characterization by scanning probe microscopy and voltammetry
(Springer, 2014-04)
Nanoparticle ensembles (NPEs) are useful platforms to study the electrocatalytic properties of nano-sized materials. A fabrication method that guarantees a good control over the morphological features, as well as a reliable ...
What Determines Electrochemical Surface Processes on Carbon Supported PdAu Nanoparticles?
(Amer Chemical Soc, 2018-03-01)
Supported bimetallic nanoparticles have good activities in heterogeneous catalysis and electrocatalysts. Among those systems, PdAu shows improved stability and enhanced catalytic activity toward electrochemical reactions ...
What Determines Electrochemical Surface Processes on Carbon-Supported PdAu Nanoparticles?
(2018-03-02)
Supported bimetallic nanoparticles have good activities in heterogeneous catalysis and electrocatalysts. Among those systems, PdAu shows improved stability and enhanced catalytic activity toward electrochemical reactions ...
Theory and experiments for voltammetric and SECM investigations and application to ORR electrocatalysis at nanoelectrode ensembles of ultramicroelectrode dimensions
(American Chemical Society, 2015-01)
Theoretical and experimental approaches to characterizing nanoelectrode (NE) ensembles of ultramicroelectrode dimensions (UME-NEEs) as a function of fraction of active area and random NE distribution are described. UME-NEEs ...
Statistical mechanics of few-particle systems: Exact results for two useful models
(IOP Publishing, 2017-11)
The statistical mechanics of small clusters (n ∼ 10-50 elements) of harmonic oscillators and two-level systems is studied exactly, following the microcanonical, canonical and grand canonical formalisms. For clusters with ...
Hierarchical nanoparticle ensembles synthesized by liquid phase directed self?assembly
(American Chemical Society, 2014-01)
A liquid metal filament supported on a dielectric substrate was directed to fragment into an ordered, mesoscale particle ensemble. Imposing an undulated surface perturbation on the filament forced the development of a ...
Silicon Quantum Dots Metal-Enhanced Photoluminescence by Gold Nanoparticles in Colloidal Ensembles: Effect of Surface Coating
(American Chemical Society, 2018-11)
In the present study, we report the photophysical properties of colloidal ensembles of silicon quantum dots (SiDs) and gold nanoparticles (AuNPs), particularly focusing on investigating metal-enhanced photoluminescence ...
Voltammetric and Scanning Electrochemical Microscopy Investigations of the Hydrogen Evolution Reaction in Acid at Nanostructured Ensembles of Ultramicroelectrode Dimensions: Theory and Experiment
(American Chemical Society, 2018-01)
Mechanistic studies of the hydrogen evolution reaction (HER) on nanoelectrode ensembles of ultramicroelectrode dimensions (UME-NEEs) are demonstrated using addressable nanoelectrode membrane arrays (ANEMAs). A kinetic model ...