Results 221 to 230 of about 118,659 (268)

Electrochemical Potential Spectroscopy: A New Electrochemical Measurement

Journal of The Electrochemical Society, 1979
A new electrochemical technique is described that involves applying a series of constant potential steps to an electrochemical cell. On each potential step the cell is permitted to attain quasi open‐circuit conditions by letting the current decay to a small, but finite, value.
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Electrochemical Measurements of DNA Melting on Surfaces

2013
Thermal denaturation, or melting, measurements are a classic technique for analysis of thermodynamics of nucleic base driven associations in solution, as well as of interactions between nucleic acids and small molecule ligands such as drugs or carcinogens.
Irina, Belozerova, Dongbiao, Ge, Rastislav, Levicky   +2 more
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Electrochemical Measurement Techniques

1989
Phase relations, thermodynamic and kinetic data are among the most fundamental materials parameters. They provide information about the existing stable phases, stability ranges, non-stoichiometries, atomic disorder, energies of formation, and electronic and ionic transport properties.
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Electrochemical Measurement of Oxide Formation

Journal of The Electrochemical Society, 1958
Measurements have been made of the potential developed between a metal wire covered with its oxide and a platinum wire over which air or oxygen was passed. The electrolyte was the eutectic mixture of Li/sub 2/SO/sub 4/ and K/sub 2/SO/sub 4/, containing dissolved CaO and operated at various temperatures between 550 deg and75O deg C.
Douglas G. Hill, Bernard Porter, Arthur S. Gillespie   +2 more
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The measurement of transmembrane electrochemical proton gradients

Journal of Bioenergetics, 1975
The recent interest in testing Mitchell's chemiosmotic hypothesis [1, 2] has stimulated the s tudy of t ransmembrane electrochemical p ro ton gradients in various biological systems. The main postulate of the chemiosmotic hypothesis is that in energy conserving membranes there are electrogenic p ro ton pumps, driven by electron transport , which builds
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Electrochemical Measurement of Corrosion Rate

CORROSION 1991, 1991
Abstract An overview of laboratory techniques for electrochemically measuring corrosion rate in aqueous solutions is presented. Techniques such as electrochemical impedance spectroscopy, polarization resistance, and potentiostatic polarization are discussed along with the assumptions made in using each technique.
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Organic Electrochemical Transistor to measure electrochemical potentials

2018
Organic Electrochemical Transistors (OECTs) have been proposed as low cost chemical sensors for the detection of several analytes thanks to their remarkable features such as signal amplification, the use of an easy and cheap readout electronics, low supply voltage (usually < 1 V), low power operation (< 100 μW), bio-compatibility, and, moreover, they ...
Isacco Gualandi, Marta Tessarolo, Federica Mariani, Domenica Tonelli, Tobias Cramer, Erika Scavetta, Beatrice Fraboni   +6 more
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Electrochemical Device for Measuring Oxygen

Review of Scientific Instruments, 1962
An electrochemical device for measuring oxygen in gases is described which utilizes a gold indicator electrode and a cadmium reference. Filled with electrolyte and encapsulated with a thin polyethylene membrane, this cell gives a current proportional to the oxygen partial pressure.
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Validation of Electrochemical Noise Measurements

CORROSION 2012, 2012
Abstract Electrochemical noise measurement is established as a means of estimation of corrosion rate, and methods for the identification of localized corrosion have been proposed. Many of these methods make the assumption that two electrodes used to measure current noise have similar behavior; this paper examines tests based on measured ...
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Impedance Measurements in Electrochemical Systems

1982
The application of relaxation techniques1 and steady state sinusoidal modulation (“ac impedance,” “ac polarography”) methods2–7 for the investigation of electrochemical phenomena has expanded rapidly over the past two decades. The various methods have been used to ascertain reaction mechanisms, particularly those for electrode processes involving ...
Digby D. Macdonald, Michael C. H. McKubre   +1 more
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