Equation for solvent activity correlation in ternary solutions with electrolyte and molecular components

Passamonti, Francisco Javier; Chialvo, María R. Gennero de; Chialvo, Abel C.

doi:10.1016/j.fluid.2014.12.039

Cited by 4 publications

(4 citation statements)

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“…Moreover, a H 2 O can also be accurately approximated for more complex solutions with the following equation a H 2 O = 1 − ∑ m i n H 2 O o where m i is the concentration of the species i in the reference electrode solution, being i an electrolyte or a molecular nonvolatile solute . Moreover an extended, more complete, equation can be also used . Thus, eq can be rewritten on terms of ϕ E R H E = E S H E o − R T F false{ 2.3026 pH + 0.5 × ln [ false( P − e − v m ϕ / n normalH 2 normalO normalo P normalH 2 normalO normalo false) / P * ] false} or on terms of composition E R H …”

Section: Introductionmentioning

confidence: 99%

“…19 Moreover an extended, more complete, equation can be also used. 20 Thus, eq 10 can be rewritten on terms of ϕ…”

Section: ■ Introductionmentioning

confidence: 99%

“…19 Moreover an extended, more complete, equation can be also used. 20 Thus, eq 10 can be rewritten on terms of ϕ . The application of eqs 17 and (18) requires the evaluation of both, pH and water activity of the solution used in the hydrogen electrode.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Moreover, a H 2 O can also be accurately approximated for more complex solutions with the following equation where m i is the concentration of the species i in the reference electrode solution, being i an electrolyte or a molecular nonvolatile solute . Moreover an extended, more complete, equation can be also used . Thus, eq can be rewritten on terms of ϕ or on terms of composition …”

Section: Introductionmentioning

confidence: 99%

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Design and Characterization of a Close Compartment Hydrogen Reference Electrode for Electrocatalytic Studies

Montero

Chialvo

2023

ACS Catal.

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The reference electrode plays an important role in the determination of the electrocatalytic activity of a given electrode material. The hydrogen reference electrode has several advantages, as it is stable, can be used in the whole range of pH values, and does not contaminate the system. However, its use is not widespread due to certain difficulties related to its construction and operation. In this context, we report the design of a reversible hydrogen electrode (RHE) characterized by its simplicity, reproducibility, portability, stability, and precision. Moreover, rigorous equations for the variation of the RHE potential on the solution concentration, temperature, and pressure were derived as well as for the conversion of a working electrode potential referred to RHE to the standard hydrogen electrode (SHE).

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