Mark Orazem

Distinguished Professor University of Florida

Gainesville FL

Mark Orazem studies corrosion, batteries, fuel cells, sensors, and electrodes for neural stimulation.

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Biography

Mark Orazem's research involves the application of electrochemical engineering to diverse topics such as cathodic protection models for pipelines and electrokinetic separation. His current work includes identifying possible mechanisms for localized corrosion of copper-clad steel containers, proposed for storage of spent nuclear fuel rods. He is leading an NIH-funded effort to use ultramicroelectrodes for neural stimulation. He serves as the William P. and Tracy Cirioli Professor of Chemical Engineering and associate chair for graduate studies.

Areas of Expertise

Electrodes

Fuel Cells

Corrosion

Electromagnetic Engineering

Electrochemical Impedance Spectroscopy

Batteries

Sensors

Social

Articles

Analysis of electrochemical impedance spectroscopy data for sputtered iridium oxide electrodes

IOP Science

Lutz, et al.

2025-05-07

Our objective was to perform a complete analysis of in-vitro impedance data for sputtered iridium oxide film (SIROF) micro-electrodes. An interpretation model was developed that considered the impedance of the bare surface and the contribution of a porous component, based on the de Levie model of porous electrodes.

On the Proper Use of a Warburg Impedance

Journal of The Electrochemical Society

Mark E. Orazem, et. al

2024-04-17

Recent battery papers commonly employ interpretation models for which diffusion impedances are in series with interfacial impedance. The models are fundamentally flawed because the diffusion impedance is inherently part of the interfacial impedance.

Comparison of Approaches for Assessing Linearity of Impedance Measurements

Journal of The Electrochemical Society

Jie Min Goh, et. al

2024-03-28

Electrochemical impedance spectroscopy experiments are inherently nonlinear for systems affected by faradaic reactions. The methods used to determine whether an experiment is sufficiently linear include observation of current as a function of potential, known as Lissajous plots, measurement of total harmonic distortion, and post-experiment assessment of consistency with the Kramers–Kronig relations.