Publication

Probe for amperometric measurement of dissolved hydrogen

Christos Comninellis, Urs von Stockar
1996
Patents

Abstract

A probe for amperometric measurement of dissolved hydrogen dissolved in a liq. contains an Pt indicating electrode and a metallic pseudoref. electrode, constituted of, preferably, Ag or Hg, with a deposit of oxide on the pseudoref. electrode, preferably, Ag2O or AgO. The probe is filled with a neutral or basic electrolyte soln. nonsusceptible to deactivating the indicating electrode or undergoing an electro-oxidn., such as solns. of KOH or K2SO4. The hydrogen probe can be realized from a Clark-type oxygen probe. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/0c7a63ea-055b-414b-99cd-ae9492113d76

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Christos Comninellis, Urs von Stockar
1996
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/0c7a63ea-055b-414b-99cd-ae9492113d76

About this result

Related concepts (22)

Standard hydrogen electrode

In electrochemistry, the standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials. Its absolute electrode potential is estimated to be 4.44 ± 0.02 V at 25 °C, but to form a basis for comparison with all other electrochemical reactions, hydrogen's standard electrode potential (E°) is declared to be zero volts at any temperature. Potentials of all other electrodes are compared with that of the standard hydrogen electrode at the same temperature.

Hydrogen

Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen is the lightest element. At standard conditions hydrogen is a gas of diatomic molecules having the formula . It is colorless, odorless, tasteless, non-toxic, and highly combustible. Hydrogen is the most abundant chemical substance in the universe, constituting roughly 75% of all normal matter. Stars such as the Sun are mainly composed of hydrogen in the plasma state. Most of the hydrogen on Earth exists in molecular forms such as water and organic compounds.

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.

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Probe for amperometric measurement of dissolved hydrogen

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