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Showing 1 to 16 of 16 for “"butler-volmer"”.
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Asymptotic analysis of extreme electrochemical transport
… layer which mediates Faradaic reactions with Butler-Volmer kinetics. Our analysis differs from previous studies in two significant ways. First, we impose the full nonlinear, reactive boundary conditions appropriate for electrolytic/galvanic cells.
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A model-based approach for the development of a bioelectrochemical sensor for biochemical oxygen demand in wastewater
… on growth rate in an aerobic system. The Butler-Volmer Monod model is used to relate substrate concentration, anode potential, and generated current. Polarization curves generated at a range of different acetate concentrations were used to estimate the kinetic parameters of the model and …
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Model-based Experimental Design in Electrochemistry
… The approach is model-based and the classical Butler-Volmer description is chosen to describe the fundamental electrochemical reaction at a conductive interface. The methodology focuses on two significant design variables: the applied potential at the electrode and mass transport mode induced …
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The ferric leaching of pyrite
… potential decreased, in what appeared to be a Butler-Volmer-like manner. This, along with the observation that there was no significant effect of the total iron concentration, suggested the likelihood of an electrochemical mechanism being operative, with charge transfer at the pyrite surface …
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Transient Model of Heat,Mass,and Charge transfer as well as Electrochemistry in the Cathode Catalyst Layer of a PEMFC
… of a number of the closure relations such as the Butler-Volmer equation employed is included as is a discussion of the initial and boundary conditions applied. The mathematical model is solved using a finite elements approach developed at the I.U.S.T.I.
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Lifetime prediction for lithium-ion batteries undergoing fast charging protocols
… electrolytic Stefan-Maxwell diffusivity, and Butler-Volmer exchange currents. Parameter estimation and uncertainty quantification are formulated as least squares optimization over galvanostatic discharge curves with Bayesian estimation of uncertainties. A battery lifetime approach from the …
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Model-Based Experimental Investigation of Hydrogenase-Like Electrocatalytic Inactivation and Activation Mechanisms
… Fully model-based approaches combined with the Butler-Volmer model is employed from a pure theoretical model to a validation of practical chemical reactions. The initial chapters introduce the fundamentals and applications of the electrochemistry. Chapter 1 provides an overview of the electrode …
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Aqueous hydrogen sulphide corrosion of iron, iron/chromium and iron/nickle alloys.
… transfer coefficient. They are related in the Butler-Volmer equation which has been referred to as the first law of electrode kinetics. These parameters have an equal significance when considering the rate of charge-transfer controlled corrosion processes, which frequently determine the service …
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Electrochemical engineering of low-cost and high-power redox flow batteries
… study, incorporating electrolyte conductivities, Butler-Volmer kinetics, and transport in porous media, calculates cell polarization. With respect to active material and supporting electrolyte properties, the TE model provides bounded design spaces for cost effective RFBs, guiding material …
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Numerical investigation of ion transport mechanisms in electrochemical energy storage devices: Similarity correlation and exergy destruction analysis
… for RFBs instead of the most commonly used Butler Volmer empirical model. We detail the finite volume formulation with implicit time stepping along with a logarithmic transform of the concentration fields to solve the system of equations. A detailed stability analysis is conducted using the …
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Designer Porous Carbon Electrodes for Redox Flow Batteries
… and reactant properties, applying both Tafel and Butler-Volmer kinetic descriptions to reaction-diffusion processes within a porous sphere. From this analysis, I identify design principles for electrocatalyst sizing based on desired utilization efficiency and find markedly lower catalyst …
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Ionic liquid electrochemical processing of reactive metals
… at temperatures ranging from 347 to 423 K. The Butler-Volmer equation was fitted to the plots by varying the kinetic parameters. The cathodic reaction was found to be diffusion limited and the anodic reaction is limited by passivation at lower temperatures. The overpotential required for …
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Lithium-ion battery modeling using non-equilibrium thermodynamics
… and is presented in a form similar to the Butler-Volmer equation, which determines the reaction rate based on the local overpotential. This self-consistent set of equations allows both homogeneous and phase separating intercalation materials to be modeled. After the derivation of the set of …
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ecFOAM: A finite volume electrochemistry solver, with applications for molten salt systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms
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An electrochemical and leach study of the oxidative dissolution of chalcopyrite in ammoniacal solutions
… in exponential fashion supporting conventional Butler-Volmer behaviour with a anodic transfer coefficient of 0.42 and a rate constant k* CuFeS2 of 0.0431 cms⁻¹. Increasing total ammonia increased the rate of reaction only at low concentrations; at higher concentrations increasing total ammonia …