Abstract
A Device to Measure the Effect of Time Gradient Magnetic Flux on Heterogeneous Electron Transfer
Meeting abstracts (Electrochemical Society), Vol.MA2025-02(59), pp.2774-2774
11/24/2025
DOI: 10.1149/MA2025-02592774mtgabs
Abstract
Interfacial electron transfer rates for the hydrogen evolution reaction (HER) are impacted by spatial gradients in the magnetic flux density, B (r,t).[1] From electromagnetic theory, Maxwell’s equations suggest that temporal gradients in magnetic flux impact current and potential. The question arises as to whether temporal gradients in B (r,t) also catalyze HER.
Here, experiments are undertaken to determine whether ∂ B (r,t)/∂t impacts electron transfer rates and electrocatalysis. We present a simple electrode device to study electrochemical reactions in oscillating magnetic gradients. This enables the study of how alternating magnetic fields may impact electron transfer kinetics and mass transport. From Butler Volmer kinetics, Tafel analysis about the equilibrium potential for reactions such as HER will allow evaluation of impacts on electron transfer absent mass transport. Tafel analysis at small overpotentials can be improved by incorporation of the Taffit algorithm to fit collected data to Butler-Volmer equation.[2] Evaluations with the frequency of the applied sinusoidal magnetic flux will be undertaken. Constraints inherent to Tafel analysis ensure that current measured during evaluation is accurate and without mass transport complications.
Impacts of ∂ B (r,t)/∂t on electron transfer rates and electrocatalysis are anticipated through the Maxwell-Faraday equation where ∂ B (r,t)/∂t impacts the electrical gradients that drive electron transfer kinetics.
Details
- Title: Subtitle
- A Device to Measure the Effect of Time Gradient Magnetic Flux on Heterogeneous Electron Transfer
- Creators
- Andy Peter LazickiJohna Leddy
- Resource Type
- Abstract
- Publication Details
- Meeting abstracts (Electrochemical Society), Vol.MA2025-02(59), pp.2774-2774
- DOI
- 10.1149/MA2025-02592774mtgabs
- ISSN
- 2151-2043
- eISSN
- 2151-2035
- Language
- English
- Date published
- 11/24/2025
- Academic Unit
- Chemistry
- Record Identifier
- 9985034936702771
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