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Tafel Slope for Cathodic Reaction from Tafel Equation Formula

GoTafel Slope for Anodic Reaction from Tafel Equation Formula

GoTafel Slope given Temperature and Charge Transfer Coefficient Formula

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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. Check FAQs

A slope = - \frac{η}{\log 10 (\frac{i}{i 0})}

A_slope - Tafel Slope?η - Overpotential?i - Electric Current Density?i₀ - Exchange Current Density?

Tafel Slope for Cathodic Reaction from Tafel Equation Example

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Here is how the Tafel Slope for Cathodic Reaction from Tafel Equation equation looks like with Values.

Here is how the Tafel Slope for Cathodic Reaction from Tafel Equation equation looks like with Units.

Here is how the Tafel Slope for Cathodic Reaction from Tafel Equation equation looks like.

-0.0979 = - \frac{0.03}{\log 10 (\frac{0.405}{0.2})}

-0.0979V = - \frac{0.03V}{\log 10 (\frac{0.405A/m²}{0.2A/m²})}

-0.0979 = - \frac{0.03}{\log 10 (\frac{0.405}{0.2})}

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Tafel Slope » fx Tafel Slope for Cathodic Reaction from Tafel Equation

Tafel Slope for Cathodic Reaction from Tafel Equation Solution

Follow our step by step solution on how to calculate Tafel Slope for Cathodic Reaction from Tafel Equation?

FIRST Step Consider the formula

A slope = - \frac{η}{\log 10 (\frac{i}{i 0})}

Next Step Substitute values of Variables

∴

A slope = - \frac{0.03V}{\log 10 (\frac{0.405A/m²}{0.2A/m²})}

Next Step Prepare to Evaluate

∴

A slope = - \frac{0.03}{\log 10 (\frac{0.405}{0.2})}

Next Step Evaluate

∴

A slope = -0.0979032301630047V

LAST Step Rounding Answer

∴

A slope = -0.0979V

Tafel Slope for Cathodic Reaction from Tafel Equation Formula Elements

Variables

Functions

Tafel Slope

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.

Symbol: A_slope

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Tafel Slope

Overpotential

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.

Symbol: η

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Overpotential

Electric Current Density

The Electric current density is the amount of charge per unit of time that flows through the unit area of a chosen cross-section.

Symbol: i

Measurement: Surface Current DensityUnit: A/m²

Note: Value can be positive or negative.

Formulas to find Electric Current Density

Exchange Current Density

The Exchange Current Density is defined as the current in the absence of net electrolysis and at zero overpotential.

Symbol: i₀

Measurement: Surface Current DensityUnit: A/m²

Note: Value can be positive or negative.

Formulas to find Exchange Current Density

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.

Syntax: log10(Number)

Other Formulas to find Tafel Slope

Go Tafel Slope for Anodic Reaction from Tafel Equation

A slope = + \frac{η}{\log 10 (\frac{i}{i 0})}

Go Tafel Slope given Temperature and Charge Transfer Coefficient

A slope = \frac{\ln (10) \cdot [BoltZ] \cdot T}{e \cdot α}

Go Tafel Slope given Thermal Voltage

A slope = \frac{\ln (10) \cdot V t}{α}

Other formulas in Tafel Slope category

Go Overpotential for Anodic Reaction from Tafel Equation

η = + (A slope) \cdot (\log 10 (\frac{i}{i 0}))

Go Overpotential for Cathodic Reaction from Tafel Equation

η = - (A slope) \cdot (\log 10 (\frac{i}{i 0}))

Go Current Density for Anodic Reaction from Tafel Equation

i = (10^{\frac{η}{A slope}}) \cdot i 0

Go Current Density for Cathodic Reaction from Tafel Equation

i = (10^{\frac{η}{- A slope}}) \cdot i 0

How to Evaluate Tafel Slope for Cathodic Reaction from Tafel Equation?

Tafel Slope for Cathodic Reaction from Tafel Equation evaluator uses Tafel Slope = -Overpotential/(log10(Electric Current Density/Exchange Current Density)) to evaluate the Tafel Slope, The Tafel slope for cathodic reaction from Tafel equation formula is defined as the negative 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 evaluate Tafel Slope for Cathodic Reaction from Tafel Equation using this online evaluator? To use this online evaluator for Tafel Slope for Cathodic Reaction from Tafel Equation, enter Overpotential (η), Electric Current Density (i) & Exchange Current Density (i₀) and hit the calculate button.

FAQs on Tafel Slope for Cathodic Reaction from Tafel Equation

What is the formula to find Tafel Slope for Cathodic Reaction from Tafel Equation?

The formula of Tafel Slope for Cathodic Reaction from Tafel Equation is expressed as Tafel Slope = -Overpotential/(log10(Electric Current Density/Exchange Current Density)). Here is an example- -0.017658 = -0.03/(log10(0.405/0.2)).

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

With Overpotential (η), Electric Current Density (i) & Exchange Current Density (i₀) we can find Tafel Slope for Cathodic Reaction from Tafel Equation using the formula - Tafel Slope = -Overpotential/(log10(Electric Current Density/Exchange Current Density)). This formula also uses Common Logarithm (log10) function(s).

What are the other ways to Calculate Tafel Slope?

Here are the different ways to Calculate Tafel Slope-

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

Can the Tafel Slope for Cathodic Reaction from Tafel Equation be negative?

Yes, the Tafel Slope for Cathodic Reaction from Tafel Equation, measured in Electric Potential can be negative.

Which unit is used to measure Tafel Slope for Cathodic Reaction from Tafel Equation?

Tafel Slope for Cathodic Reaction from Tafel Equation is usually measured using the Volt[V] for Electric Potential. Millivolt[V], Microvolt[V], Nanovolt[V] are the few other units in which Tafel Slope for Cathodic Reaction from Tafel Equation can be measured.

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Tafel Slope for Cathodic Reaction from Tafel Equation Formula

​GoTafel Slope for Anodic Reaction from Tafel Equation Formula

​GoTafel Slope given Temperature and Charge Transfer Coefficient Formula

Tafel Slope for Cathodic Reaction from Tafel Equation Example

Tafel Slope for Cathodic Reaction from Tafel Equation Solution

Tafel Slope for Cathodic Reaction from Tafel Equation Formula Elements

Other Formulas to find Tafel Slope

Other formulas in Tafel Slope category

How to Evaluate Tafel Slope for Cathodic Reaction from Tafel Equation?

FAQs on Tafel Slope for Cathodic Reaction from Tafel Equation

Variable Name

GoTafel Slope for Anodic Reaction from Tafel Equation Formula

GoTafel Slope given Temperature and Charge Transfer Coefficient Formula