Richard G. Compton
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View article: Promoting Electrochemical Reversibility: Concave versus Convex Electrodes
Promoting Electrochemical Reversibility: Concave versus Convex Electrodes Open
The importance of electrode shape, alongside electrode size, as key factors in controlling the reversibility or otherwise of electrochemical responses, is recognized at the microscopic level but is explored here via finite-element simulati…
View article: Dissolution Kinetics of Solid Particles and the Role of Aggregation: Vaterite Dissolution
Dissolution Kinetics of Solid Particles and the Role of Aggregation: Vaterite Dissolution Open
View article: The dissolution and precipitation kinetics of solid particles: the influence of adsorption
The dissolution and precipitation kinetics of solid particles: the influence of adsorption Open
The dissolution or growth of solid particles, analogous to electro-dissolution and deposition processes, can occur either under mass transport or surface kinetic control with the latter considered increasingly likely as the size of the par…
View article: Vaterite/Hydroxyapatite Core–Shell Microspheres: Dissolution Kinetics and Mechanism
Vaterite/Hydroxyapatite Core–Shell Microspheres: Dissolution Kinetics and Mechanism Open
View article: Fluoro-Electrochemistry Based Phytoplankton Bloom Detection and Enumeration; Field Validation of a New Sensor for Ocean Monitoring
Fluoro-Electrochemistry Based Phytoplankton Bloom Detection and Enumeration; Field Validation of a New Sensor for Ocean Monitoring Open
Phytoplankton are essential for the health of our oceans, yet existing in situ methods for monitoring phytoplankton abundance and community structure are limited, with relatively poor spatiotemporal coverage and taxonomic resolution, parti…
View article: Correction to Vaterite Dissolution: Mechanism and Kinetics
Correction to Vaterite Dissolution: Mechanism and Kinetics Open
[This corrects the article DOI: 10.1021/acs.jpcc.4c02074.].
View article: Vaterite Dissolution: Mechanism and Kinetics
Vaterite Dissolution: Mechanism and Kinetics Open
The dissolution of porous spherulitic, vaterite particles in aqueous solution is investigated via microscopic monitoring of their size as a function of time. The latter is shown to provide a clear, generic distinction between dissolution c…
View article: Removing 65 Years of Approximation in Rotating Ring Disk Electrode Theory with Physics-Informed Neural Networks
Removing 65 Years of Approximation in Rotating Ring Disk Electrode Theory with Physics-Informed Neural Networks Open
The rotating Ring Disk Electrode (RRDE), since its introduction in 1959 by Frumkin and Nekrasov, has become indispensable with diverse applications in electrochemistry, catalysis, and material science. The collection efficiency () is an im…
View article: Double Electrode Experiments Reveal the Processes Occurring at PEDOT-Coated Neural Electrode Arrays
Double Electrode Experiments Reveal the Processes Occurring at PEDOT-Coated Neural Electrode Arrays Open
Neural electrodes have recently been developed with surface modifications of conductive polymers, in particular poly(3,4-ethylenedioxythiophene) (PEDOT), and extensively studied for their roles in recording and stimulation, aiming to impro…
View article: Innentitelbild: Discovering Electrochemistry with an Electrochemistry‐Informed Neural Network (ECINN) (Angew. Chem. 13/2024)
Innentitelbild: Discovering Electrochemistry with an Electrochemistry‐Informed Neural Network (ECINN) (Angew. Chem. 13/2024) Open
A festive electrochemistry-informed neural network (ECINN) is demonstrated by Richard G. Compton et al. (e202315937) in their Communication. The ECINN has three subnets, each made of three layers of "Chinese lantern" neurons, embedding div…
View article: Inside Cover: Discovering Electrochemistry with an Electrochemistry‐Informed Neural Network (ECINN) (Angew. Chem. Int. Ed. 13/2024)
Inside Cover: Discovering Electrochemistry with an Electrochemistry‐Informed Neural Network (ECINN) (Angew. Chem. Int. Ed. 13/2024) Open
A festive electrochemistry-informed neural network (ECINN) is demonstrated by Richard G. Compton et al. (e202315937) in their Communication. The ECINN has three subnets, each made of three layers of "Chinese lantern" neurons, embedding div…
View article: Discovering Electrochemistry with an Electrochemistry‐Informed Neural Network (ECINN)
Discovering Electrochemistry with an Electrochemistry‐Informed Neural Network (ECINN) Open
Machine learning is increasingly integrated into chemistry research by guiding experimental procedures, correlating structure and function, interpreting large experimental datasets, to distill scientific insights that might be challenging …
View article: The solubility product controls the rate of calcite dissolution in pure water and seawater
The solubility product controls the rate of calcite dissolution in pure water and seawater Open
The dissolution of calcite crystals into water is revealed to be under thermodynamic control such that the rate of dissolution is controlled by the rate of diffusion of ions from a saturated surface layer adjacent to the calcite surface.
View article: Controlling crystallisation and dissolution of biogenic CaCO<sub>3</sub><i>via</i> dissolved magnesium cations
Controlling crystallisation and dissolution of biogenic CaCO<sub>3</sub><i>via</i> dissolved magnesium cations Open
Lab microscopy experiments show a negligible difference between the rate of mass loss of biogenic and pure, laboratory-grown CaCO 3 particles.
View article: Electrochemical sensors for phytoplankton and ocean health
Electrochemical sensors for phytoplankton and ocean health Open
Electrochemistry is potentially at the forefront of offering a scalable, low-powered sensing solution in autonomous monitoring applications. In the past couple of decades, thousands of autonomous profiling floats have been deployed in the …
View article: Rotating Disk Electrodes beyond the Levich Approximation: Physics-Informed Neural Networks Reveal and Quantify Edge Effects
Rotating Disk Electrodes beyond the Levich Approximation: Physics-Informed Neural Networks Reveal and Quantify Edge Effects Open
Physics-informed neural networks are used to characterize the mass transport to the rotating disk electrode (RDE), the most widely employed hydrodynamic electrode in electroanalysis. The PINN approach was first quantitatively verified via …
View article: Calcifying Coccolithophore: An Evolutionary Advantage Against Extracellular Oxidative Damage
Calcifying Coccolithophore: An Evolutionary Advantage Against Extracellular Oxidative Damage Open
The evolutionary advantages afforded by phytoplankton calcification remain enigmatic. In this work, fluoroelectrochemical experiments reveal that the presence of a CaCO 3 shell of a naturally calcifying coccolithophore, Coccolithus braarud…
View article: Electrochemical and Nanostructural Characterization of Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) Films as Coatings for Neural Electrodes
Electrochemical and Nanostructural Characterization of Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) Films as Coatings for Neural Electrodes Open
Poly(3,4-ethylenedioxythiophene) (PEDOT), a well-characterized conducting polymer, has been applied for coating metal neural electrodes to improve their stimulating or recording performance. The coated electrodes possess advantages in bett…
View article: Direct Electrochemical Analysis in Seawater: Evaluation of Chloride and Bromide Detection
Direct Electrochemical Analysis in Seawater: Evaluation of Chloride and Bromide Detection Open
Chloride and bromide are two of the most abundant anions found in seawater, and knowledge of their concentrations is essential for environmental monitoring. However, the analysis of chloride and bromide in seawater is challenging due to th…
View article: Kinetics of Lipophilic Pesticide Uptake by Living Maize
Kinetics of Lipophilic Pesticide Uptake by Living Maize Open
We report the uptake of a lipophilic fungicide into the cuticle of living leaves of young maize from droplets of a suspension concentrate. The action of a "coffee-ring" effect is demonstrated during fungicide formulation drying, and the fu…
View article: A novel fluoro-electrochemical technique for classifying diverse marine nanophytoplankton
A novel fluoro-electrochemical technique for classifying diverse marine nanophytoplankton Open
To broaden our understanding of pelagic ecosystem responses to environmental change, it is essential that we improve the spatio-temporal resolution of in situ monitoring of phytoplankton communities. A key challenge for existing methods is…
View article: Electrochemistry needs electrochemists: “goodbye to rotating discs”
Electrochemistry needs electrochemists: “goodbye to rotating discs” Open
The essential need for expert, fully trained electrochemists in the successful application of the subject is illustrated with several examples including the use of rotating electrodes and impedance spectroscopy where the use of the techniq…
View article: Distinguishing Heterogeneous and Homogeneous CE Mechanisms: Theoretical Insights into Square-Wave Voltammetry
Distinguishing Heterogeneous and Homogeneous CE Mechanisms: Theoretical Insights into Square-Wave Voltammetry Open
A theoretical study of an electrode mechanism where the electrode reaction (E) is preceded by a chemical reaction that takes place solely at the electrode surface (Chet) is presented under conditions of square-wave voltammetry (SWV). Rigor…
View article: Machine learning in fundamental electrochemistry: Recent advances and future opportunities
Machine learning in fundamental electrochemistry: Recent advances and future opportunities Open
The last decade has seen a rapid increase in the use of machine learning techniques in an ever-broadening range of applications. Despite great opportunities, its benefits have, however, not yet been exploited to the full extent in the fiel…
View article: AI facilitated fluoro-electrochemical phytoplankton classification
AI facilitated fluoro-electrochemical phytoplankton classification Open
Schematic of fluoro-electrochemical microscopy. (a) Cartoon E. huxleyi is green under normal light, but (b) emits red fluorescence under UV. (c) Placed near an oxidizing electrode, its fluorescence fades and ultimately (d) “switches off”.
View article: A simple microscopy approach quantifies biomineralized CO<sub>2</sub> in <i>Coccolithus braarudii</i> – a calcifying marine phytoplankton
A simple microscopy approach quantifies biomineralized CO<sub>2</sub> in <i>Coccolithus braarudii</i> – a calcifying marine phytoplankton Open
This simple microscopic approach reveals a mass-transport limited rate of coccolith auto-dissolution in undersaturated aqueous solution and offers a routine method to quantify the mass of particulate inorganic carbon per coccolith.
View article: Does the life cycle stage matter for distinguishing phytoplankton via fluoro-electrochemical microscopy?
Does the life cycle stage matter for distinguishing phytoplankton via fluoro-electrochemical microscopy? Open
Phytoplankton have species-specific responses toward electrogenerated oxidants, allowing high-throughput species analysis. Herein, a fluoro-electrochemical method is used to expose single Chlamydomonas concordia vegetative cells at differe…
View article: Reversible Cyclic Voltammetry and Non-Unity Stoichiometry: The Ag/AgBr/Br<sup>–</sup>Redox Couple
Reversible Cyclic Voltammetry and Non-Unity Stoichiometry: The Ag/AgBr/Br<sup>–</sup>Redox Couple Open
The voltammetry of electrochemically reversible couples in which a soluble reactant is converted into an insoluble product is investigated computationally via simulation and, in the context of the Ag/AgBr/Br-redox couple, experi…
View article: A Critical Evaluation of Using Physics-Informed Neural Networks for Simulating Voltammetry: Strengths, Weaknesses and Best Practices
A Critical Evaluation of Using Physics-Informed Neural Networks for Simulating Voltammetry: Strengths, Weaknesses and Best Practices Open
The recent explosion of applications of physics-informed neural networks (PINNs) as a discretization-free tool to solve partial differential equations (PDEs) shows great potential for applications in electroanalytical simulations. However,…
View article: Voltammetry of Carbon Nanotubes and the Limitations of Particle-Modified Electrodes: Are Carbon Nanotubes Electrocatalytic?
Voltammetry of Carbon Nanotubes and the Limitations of Particle-Modified Electrodes: Are Carbon Nanotubes Electrocatalytic? Open
The use of carbon nanotubes (CNTs) as electrocatalysts is summarized; the limitations of using voltammetry based on CNT-modified electrodes is explained; and the role of mass transport, as well as electrode kinetics, with respect to dictat…