Modern Thermoelectrochemistry

Abstract

Thermoelectrochemistry as a branch of electrochemistry like photoelectrochemistry is reviewed in an integral treatment of the subject. Especially modern thermoelectrochemistry is focused on new techniques to vary the temperature as an independent variable. This review based on a definition of modern thermoelectrochemistry includes all the classical work which contributes to the formation of modern thermoelectrochemistry, among them high-temperature electrochemistry, subcritical- and supercritical electrochemistry and in-situ electrochemical calorimetry. The main focus is on modern techniques like fast electrode heating by lasers or by alternating current as well as on heating of solution spots by microwaves and related methods. Here the state of the art in modern thermoelectrochemistry is critically reviewed for the first time.

High‐Temperature Electrochemical Characterization of Ru Core Pt Shell Fuel Cell Catalyst

“…For example, the electrical conductivity of aqueous electrolytes is decreasing above 90°C, mainly due to the strong decrease of the dielectric constant of the solvent [14]. This may affect the local reaction rates and, in turn, re-adsorption processes and subsequent oxidation of reaction products and finally the product distribution.…”

“…Noteworthy is also the effect that temperature has on the interaction between the electrode surface and solvent molecules. Adsorption properties are changing and the inner structure of the solvent is less ordered, favoring transport processes to and from the surface [14]. Electrochemical oxidation of small organic molecules, and methanol in particular, has been the topic of numerous studies in the last 50 years and has been reviewed several times (e.g.…”

Biparametric Potentiometric Analytical Microsystem Based on the Green Tape Technology

“…Sample throughput was estimated to be of 70 h À1 by using a sample volume of 200 mL in the configuration of the proposed system because a transitory peak is obtained in approximately 50 s and the total volume of reagents consumption was approximately 1.2 mL for each sample. The repeatability of the microsystem was evaluated from consecutive replicate analyses (n = 56) of a 5 ppm NO 3 À + 300 ppm Cl À mixed standard solution and the relative standard deviations of the signals provided by nitrate and chloride ion electrodes were 8.6 % and 1.5 %, respectively.…”

“…Pretreatment stages [1][2][3], different types of detection systems [4][5][6][7], actuators or measurement and data acquisition systems [8,9] can be easily integrated in a substrate through the fabrication of three-dimensional geometries by means of a multilayer approach. The technique was firstly conceived to develop compact and miniaturized electronic devices because of the symbiotic assembling of fluidics and electronics [10,11].…”

Reações oscilatórias e a temperatura: dos efeitos em escala <i>bulk</i> ao monitoramento local

“…A produção de calor durante processos induzidos pela passagem de corrente em uma célula eletroquímica pode surgir de diferentes fontes, tais como: 140,157 …”