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Electrode, hydrogen

The last example presented in this section deals with the pitting corrosion of Fe in CIO solutions. Perchlorate is less known as an aggressive ion but reveals some unique and remarkable characteristics with regard to pitting corrosion. For example, the critical pitting potential (1.46 V against a standard hydrogen electrode (SHE) for Fe/1 M NaClO ) can be measured with an accuracy of less than 4 mV [61] which is very unexpected if compared to... [Pg.2752]

Since it is not possible to measure a single electrode potential, one electrode system must be taken as a standard and all others measured relative to it. By international agreement the hydrogen electrode has been chosen as the reference ... [Pg.97]

For many purposes the hydrogen electrode is not convenient and it can be replaced by another cell of known standard electrode potential. A well-known example is the calomel cell shown in Figure 4.5. [Pg.99]

Figure 3-1 Voltage Measurements on a Silver-Silver Chloride, Hydrogen Cell at 298.15 K. The contribution of the Standard Hydrogen Electrode is taken as zero by convention. Figure 3-1 Voltage Measurements on a Silver-Silver Chloride, Hydrogen Cell at 298.15 K. The contribution of the Standard Hydrogen Electrode is taken as zero by convention.
Solid angle over which radi- Standard hydrogen electrode SHE... [Pg.107]

Standard Hydrogen Electrode The standard hydrogen electrode (SHE) is rarely used for routine analytical work, but is important because it is the reference electrode used to establish standard-state potentials for other half-reactions. The SHE consists of a Pt electrode immersed in a solution in which the hydrogen ion activity is 1.00 and in which H2 gas is bubbled at a pressure of 1 atm (Figure 11.7). A conventional salt bridge connects the SHE to the indicator half-cell. The shorthand notation for the standard hydrogen electrode is... [Pg.471]

A particular concentration measure of acidity of aqueous solutions is pH which usually is regarded as the common logarithm of the reciprocal of the hydrogen-ion concentration (see Hydrogen-ION activity). More precisely, the potential difference of the hydrogen electrode in normal acid and in normal alkah solution (—0.828 V at 25°C) is divided into 14 equal parts or pH units each pH unit is 0.0591 V. Operationally, pH is defined by pH = pH(soln) + E/K, where E is the emf of the cell ... [Pg.20]

Corrective action should be initiated when value is > — 0.23 V against the standard hydrogen electrode (SHE). Plant-specific values should be estabUshed for protection of stainless steels and nickel-based critical components. [Pg.195]

Laboratory experiments have shown that IGSCC can be mitigated if the electrochemical potential (ECP) could be decreased to —0.230 V on the standard hydrogen electrode (SHE) scale in water with a conductivity of 0.3 ]lS/cm (22). This has also been demonstrated in operating plants. Equipment has been developed to monitor ECP in the recirculation line and in strategic places such as the core top and core bottom, in the reactor vessel during power operation. [Pg.195]

Fig. 6. Band edge positions of several semiconductors ia contact with an aqueous electrolyte at pH 1 ia relation to the redox (electrode) potential regions (vs the standard hydrogen electrode) for the oxidation of organic functional groups (26,27). Fig. 6. Band edge positions of several semiconductors ia contact with an aqueous electrolyte at pH 1 ia relation to the redox (electrode) potential regions (vs the standard hydrogen electrode) for the oxidation of organic functional groups (26,27).
Other Coordination Complexes. Because carbonate and bicarbonate are commonly found under environmental conditions in water, and because carbonate complexes Pu readily in most oxidation states, Pu carbonato complexes have been studied extensively. The reduction potentials vs the standard hydrogen electrode of Pu(VI)/(V) shifts from 0.916 to 0.33 V and the Pu(IV)/(III) potential shifts from 1.48 to -0.50 V in 1 Tf carbonate. These shifts indicate strong carbonate complexation. Electrochemistry, reaction kinetics, and spectroscopy of plutonium carbonates in solution have been reviewed (113). The solubiUty of Pu(IV) in aqueous carbonate solutions has been measured, and the stabiUty constants of hydroxycarbonato complexes have been calculated (Fig. 6b) (90). [Pg.200]


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Batteries standard hydrogen electrode

Ceria hydrogen-electrodes

Chemical equilibria thermodynamics hydrogen electrode

Clark-type electrode, hydrogen peroxide

Convenient Hydrogen Electrode

Corrosion process hydrogen electrode reaction

Cycle hydrogen electrode reaction

Dynamic hydrogen electrode

Dynamic hydrogen reference electrode

Electrocatalysis hydrogen electrode reaction

Electrochemistry standard hydrogen electrode

Electrode for hydrogen peroxide

Electrode hydrogen sulfide

Electrode palladium-hydrogen

Electrode, antimony hydrogen

Electrodes Standard Hydrogen Electrode

Electrodes hydrogen ions reduction

Formic Acid hydrogen electrode

Free corrosion potential hydrogen electrode

Galvani Potential of the Hydrogen Electrode

HE (hydrogen electrode)

Heterogeneous Electron Transfer Kinetics at Hydrogen- Versus Oxygen-Terminated Electrodes

Hydrogen - water electrodes

Hydrogen Ion Discharge at Metal Electrodes

Hydrogen activities, glass electrode

Hydrogen atom diffusion into electrode

Hydrogen electrode 264 INDEX

Hydrogen electrode mixtures from

Hydrogen electrode overvoltage

Hydrogen electrode polarization

Hydrogen electrode process

Hydrogen electrode reactions, formulated

Hydrogen electrode secondary batteries

Hydrogen electrode, Nernst-equation

Hydrogen electrode, Nernst-equation calculation

Hydrogen electrode, potential measurement

Hydrogen electrodes purity

Hydrogen electrodes, measurement

Hydrogen gas electrode

Hydrogen ideally polarizable electrodes

Hydrogen peroxide carbon paste electrode

Hydrogen peroxide electrode

Hydrogen peroxide electrode behaviour

Hydrogen peroxide electrode surface

Hydrogen peroxide electrodes based

Hydrogen peroxide electrodes based enzyme

Hydrogen peroxide electrodes based networks

Hydrogen peroxide electrodes based operation

Hydrogen peroxide electrodes based redox centers

Hydrogen peroxide measurement modified electrode

Hydrogen peroxide sensor electrode system

Hydrogen proton exchange Electrode Assemblies

Hydrogen reference electrodes

Hydrogen, electrode oxidation

Hydrogen, electrode reactions

Hydrogen, electrode reactions isotope effect

Hydrogen, electrode standard entropy

Hydrogen, electrode standard free energy

Hydrogen, electrode standard heat capacity

Hydrogen-absorbing alloy electrode

Hydrogen-electrode concentration cell

Hydrogen-electrode concentration cell HECC)

Hydrogenation electrodes

Hydrogenation electrodes

Kinetic parameters hydrogen electrode process

Low hydrogen electrodes

Measurement against hydrogen electrode

Measurement against hydrogen electrode potential

Negative electrodes hydrogen evolution

Nickel-hydrogen batteries electrodes

Normal Standard Hydrogen Electrode

Normal hydrogen electrode

Normal hydrogen electrode NHE

Normal hydrogen electrode electrochemical cells

Normal hydrogen electrode half-reactions

Normal hydrogen electrode reduction potentials

Normal hydrogen electrode, definition

Normal hydrogen electrode, potential

Normal hydrogen electrode, potential absolute

Overall electrode reactions hydrogen evolution reaction

Platinum electrode hydrogen adsorption

Platinum hydrogen electrode

Potential of the normal hydrogen electrode

Potentiometric sensors hydrogen electrodes

Redox as Eh and the Standard Hydrogen Electrode (SHE)

Redox as pe and the Standard Hydrogen Electrode (SHE)

Reference electrode standard hydrogen

Reference electrodes hydrogen electrode

Reference electrodes standard hydrogen electrode

Reverse hydrogen electrode

Reversible hydrogen electrode

Reversible hydrogen electrode RHE

Reversible potentials hydrogen electrode

Self-Contained Hydrogen Electrode

Standard (Reversible) Hydrogen Electrode

Standard Hydrogen Electrode and Potentials

Standard Hydrogen Electrode scale

Standard hydrogen electrod

Standard hydrogen electrode

Standard hydrogen electrode half-cell

Standard hydrogen electrode pressure dependency

Standard hydrogen electrode) formal potential

Standard hydrogen electrode, definition

Standard hydrogen electrode, temperature

Standard hydrogen electrode, temperature dependence

Standard hydrogen electrode. SHE

Standard, hydrogen electrode potential

Standard, hydrogen electrode rate constant

The Standard Hydrogen Electrode

The hydrogen electrode

Voltaic cells standard hydrogen electrode

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