Progress Toward the CO2 Reduction Activity and Stability of Porphyrins in Electrolyzers

Author

• Julie A. Jannise, Louisiana State University and Agricultural and Mechanical CollegeFollow

Semester of Graduation

Spring 2026

Degree

Master of Science (MS)

Department

Chemistry

Document Type

Thesis

Abstract

Excess greenhouse gases in the Earth’s atmosphere negatively affect the temperature of its surface. Since CO₂ makes up the majority of greenhouse gases, finding a way to lower the amount of CO₂ in the atmosphere can help cool down the planet. While lowering the amount of CO₂ is helpful, the overproduction of CO₂ is the root cause. To assist in both of these fields, CO₂ can be captured and stored for later use. CO₂ can be reduced to CO and other carbon products that can be used as chemical feedstock to replace the use of fossil fuels.

Iron porphyrins and copper nanoparticles have been shown to reduce CO₂ to CO and other carbon products. Using electrocatalysis, these two components can be used as tandem electrocatalysts for CO₂ reduction. The focus of this work is to look at the different components of the electrocatalysis to optimize the output of these chemical feedstock products. Three iron (III) porphyrins were investigated for their product distribution of carbon products. The porphyrins were tested in different conditions: changing out the binder used to adhere the conductive ink components on the modified electrodes and their effect on the product distribution and the effect of layering the components of the ink instead of mixing all together. After intimal product distributions were determined, method validation was done to ensure accurate results could be collected.

Date

3-27-2026

Recommended Citation

Jannise, Julie A., "Progress Toward the CO2 Reduction Activity and Stability of Porphyrins in Electrolyzers" (2026). LSU Master's Theses. 6345.
https://repository.lsu.edu/gradschool_theses/6345

Committee Chair

Elgrishi, Noemie

LSU Acknowledgement

1

LSU Accessibility Acknowledgment

1