Friday, 4/8/2022

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University

Shawnee State University

Major

Chemistry and History

Student Type

Undergraduate Student

Presentation Types

Oral Presentation

Keywords:

electrochemistry, cyclic voltammetry, computational chemistry, Gaussian 09W

Abstract

Electrochemistry is a frequently utilized branch of chemistry. As technological advances have accelerated at remarkable speeds in the last three decades, investigations into the field have demonstrated their importance. This experiment focuses on electron transfer kinetics. The two methods used to explore the subject were cyclic voltammetry and computational chemistry. Cyclic voltammetry, abbreviated CV, measures the electrical current produced as the electrical potential is changed. For oxidation-reduction reactions, the cyclic voltammogram will display a “duck graph,” exhibiting the voltages at which the current peaks. This experiment analyzed cyclic voltammograms for the electron transfers that occur between ferricyanide and ferrocyanide. A significant amount of optimization was implemented to produce accurate, “duck” shape graphs and extract useful information. Computational chemistry was performed using Gaussian 09W, and Hartree-Fock methods with a 6-31G basis set were utilized. The research conducted confirms accepted findings and provides a foundation for further experimentation.

Human Subjects

no

IRB Approval

no

Faculty Mentor Name

Andrew Napper

Faculty Mentor Title

Professor of Chemistry

Faculty Mentor Academic Department

Natural Sciences

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Electron Transfer Kinetics

Electrochemistry is a frequently utilized branch of chemistry. As technological advances have accelerated at remarkable speeds in the last three decades, investigations into the field have demonstrated their importance. This experiment focuses on electron transfer kinetics. The two methods used to explore the subject were cyclic voltammetry and computational chemistry. Cyclic voltammetry, abbreviated CV, measures the electrical current produced as the electrical potential is changed. For oxidation-reduction reactions, the cyclic voltammogram will display a “duck graph,” exhibiting the voltages at which the current peaks. This experiment analyzed cyclic voltammograms for the electron transfers that occur between ferricyanide and ferrocyanide. A significant amount of optimization was implemented to produce accurate, “duck” shape graphs and extract useful information. Computational chemistry was performed using Gaussian 09W, and Hartree-Fock methods with a 6-31G basis set were utilized. The research conducted confirms accepted findings and provides a foundation for further experimentation.