Publication

A stochastic model for electrode effects

Hannes Bleuler
2004
Journal Articles

Abstract

The mechanism leading to the onset of the electrode effects is still under discussion in the literature. In this contribution it is proposed that the main mechanism responsible of the electrode effects is the formation of a gas film isolating the electrode. This gas film is formed because of a high population density of bubbles on the electrode surface. A simple model considering the bubble evolution as a stochastic renewal process is presented. By introducing some phenomenological relations, the model allows to evaluate the critical voltage and current density as well as the static current-voltage characteristics leading to the onset of the electrode effects.

Official source

https://infoscience.epfl.ch/entities/publication/f24487d7-d477-4742-ab90-968bdd31e0de

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Hannes Bleuler
2004
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/f24487d7-d477-4742-ab90-968bdd31e0de

About this result

Related concepts (32)

Electrode

An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or air). Electrodes are essential parts of batteries that can consist of a variety of materials depending on the type of battery. The electrophore, invented by Johan Wilcke, was an early version of an electrode used to study static electricity. Electrodes are an essential part of any battery. The first electrochemical battery made was devised by Alessandro Volta and was aptly named the Voltaic cell.

Liquid metal electrode

A liquid metal electrode is an electrode that uses a liquid metal, such as mercury, Galinstan, and NaK. They can be used in electrocapillarity, voltammetry, and impedance measurements. The dropping mercury electrode (DME) is a working electrode made of mercury and used in polarography. Experiments run with mercury electrodes are referred to as forms of polarography even if the experiments are identical or very similar to a corresponding voltammetry experiment which uses solid working electrodes.

Stochastic process

In probability theory and related fields, a stochastic (stəˈkæstɪk) or random process is a mathematical object usually defined as a sequence of random variables, where the index of the sequence has the interpretation of time. Stochastic processes are widely used as mathematical models of systems and phenomena that appear to vary in a random manner. Examples include the growth of a bacterial population, an electrical current fluctuating due to thermal noise, or the movement of a gas molecule.

Related publications (3)

A stochastic model for electrode effects

Chat with Graph Search

Design of Experiments Guided Identification of Coupled Component Interactions in Cu Gas Diffusion Electrodes for Electrochemical CO 2 Reduction to Multi‐Carbon Products

Injectable, self-opening, and freestanding retinal prosthesis for fighting blindness made of conjugated polymers

Analytical sensing platforms with inkjet printed electrodes