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Tafel Slope for Anodic Reaction from Tafel Equation Calculator

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✖The Overpotential is the potential difference between a half-reaction's thermodynamically determined reduction potential and the potential at which the redox event is experimentally observed.ⓘ Overpotential [η]			+10% -10%
✖The Electric current density is the amount of charge per unit of time that flows through the unit area of a chosen cross-section.ⓘ Electric Current Density [i]			+10% -10%
✖The Exchange Current Density is defined as the current in the absence of net electrolysis and at zero overpotential.ⓘ Exchange Current Density [i₀]			+10% -10%

✖The Tafel Slope describes how the electrical current through an electrode depends on the voltage difference between the electrode and the bulk electrolyte. The Tafel slope is measured experimentally.ⓘ Tafel Slope for Anodic Reaction from Tafel Equation [A_slope]

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Tafel Slope for Anodic Reaction from Tafel Equation Solution

STEP 0: Pre-Calculation Summary

Formula Used

Tafel Slope = +Overpotential/(log10(Electric Current Density/Exchange Current Density))
A_slope = +η/(log10(i/i₀))
This formula uses 1 Functions, 4 Variables

Functions Used

log10 - The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function., log10(Number)

Variables Used

Tafel Slope - (Measured in Volt) - The Tafel Slope describes how the electrical current through an electrode depends on the voltage difference between the electrode and the bulk electrolyte. The Tafel slope is measured experimentally.
Overpotential - (Measured in Volt) - The Overpotential is the potential difference between a half-reaction's thermodynamically determined reduction potential and the potential at which the redox event is experimentally observed.
Electric Current Density - (Measured in Ampere per Square Meter) - The Electric current density is the amount of charge per unit of time that flows through the unit area of a chosen cross-section.
Exchange Current Density - (Measured in Ampere per Square Meter) - The Exchange Current Density is defined as the current in the absence of net electrolysis and at zero overpotential.

STEP 1: Convert Input(s) to Base Unit

Overpotential: 0.03 Volt --> 0.03 Volt No Conversion Required
Electric Current Density: 0.405 Ampere per Square Meter --> 0.405 Ampere per Square Meter No Conversion Required
Exchange Current Density: 0.2 Ampere per Square Meter --> 0.2 Ampere per Square Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

A_slope = +η/(log10(i/i₀)) --> +0.03/(log10(0.405/0.2))

Evaluating ... ...

A_slope = 0.0979032301630047

STEP 3: Convert Result to Output's Unit

0.0979032301630047 Volt --> No Conversion Required

FINAL ANSWER

0.0979032301630047 ≈ 0.097903 Volt <-- Tafel Slope

(Calculation completed in 00.020 seconds)

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< Tafel Slope Calculators

Overpotential for Cathodic Reaction from Tafel Equation

LaTeX Go Overpotential = -(Tafel Slope)*(log10(Electric Current Density/Exchange Current Density))

Overpotential for Anodic Reaction from Tafel Equation

LaTeX Go Overpotential = +(Tafel Slope)*(log10(Electric Current Density/Exchange Current Density))

Tafel Slope for Cathodic Reaction from Tafel Equation

LaTeX Go Tafel Slope = -Overpotential/(log10(Electric Current Density/Exchange Current Density))

Tafel Slope for Anodic Reaction from Tafel Equation

LaTeX Go Tafel Slope = +Overpotential/(log10(Electric Current Density/Exchange Current Density))

Tafel Slope for Anodic Reaction from Tafel Equation Formula

LaTeX Go

Tafel Slope = +Overpotential/(log10(Electric Current Density/Exchange Current Density))
A_slope = +η/(log10(i/i₀))

What is Tafel equation?

The Tafel equation is an equation in electrochemical kinetics relating the rate of an electrochemical reaction to the overpotential. The Tafel equation was first deduced experimentally and was later shown to have a theoretical justification. The equation is named after Swiss chemist Julius Tafel.
" It describes how the electrical current through an electrode depends on the voltage difference between the electrode and the bulk electrolyte for a simple, unimolecular redox reaction ".

How to Calculate Tafel Slope for Anodic Reaction from Tafel Equation?

Tafel Slope for Anodic Reaction from Tafel Equation calculator uses Tafel Slope = +Overpotential/(log10(Electric Current Density/Exchange Current Density)) to calculate the Tafel Slope, The Tafel slope for anodic reaction from Tafel equation formula is defined as the positive product of overpotential to the ratio of the logarithm of current density per exchange current density. Tafel Slope is denoted by A_slope symbol.

How to calculate Tafel Slope for Anodic Reaction from Tafel Equation using this online calculator? To use this online calculator for Tafel Slope for Anodic Reaction from Tafel Equation, enter Overpotential (η), Electric Current Density (i) & Exchange Current Density (i₀) and hit the calculate button. Here is how the Tafel Slope for Anodic Reaction from Tafel Equation calculation can be explained with given input values -> 0.017658 = +0.03/(log10(0.405/0.2)).

FAQ

What is Tafel Slope for Anodic Reaction from Tafel Equation?

The Tafel slope for anodic reaction from Tafel equation formula is defined as the positive product of overpotential to the ratio of the logarithm of current density per exchange current density and is represented as A_slope = +η/(log10(i/i₀)) or Tafel Slope = +Overpotential/(log10(Electric Current Density/Exchange Current Density)). The Overpotential is the potential difference between a half-reaction's thermodynamically determined reduction potential and the potential at which the redox event is experimentally observed, The Electric current density is the amount of charge per unit of time that flows through the unit area of a chosen cross-section & The Exchange Current Density is defined as the current in the absence of net electrolysis and at zero overpotential.

How to calculate Tafel Slope for Anodic Reaction from Tafel Equation?

The Tafel slope for anodic reaction from Tafel equation formula is defined as the positive product of overpotential to the ratio of the logarithm of current density per exchange current density is calculated using Tafel Slope = +Overpotential/(log10(Electric Current Density/Exchange Current Density)). To calculate Tafel Slope for Anodic Reaction from Tafel Equation, you need Overpotential (η), Electric Current Density (i) & Exchange Current Density (i₀). With our tool, you need to enter the respective value for Overpotential, Electric Current Density & Exchange Current Density and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Tafel Slope?

In this formula, Tafel Slope uses Overpotential, Electric Current Density & Exchange Current Density. We can use 3 other way(s) to calculate the same, which is/are as follows -

Tafel Slope = -Overpotential/(log10(Electric Current Density/Exchange Current Density))
Tafel Slope = (ln(10)*[BoltZ]*Temperature)/(Elementary Charge*Charge Transfer Coefficient)
Tafel Slope = (ln(10)*Thermal Voltage)/Charge Transfer Coefficient

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