Term of Award
Fall 2022
Degree Name
Master of Science, Applied Physical Science
Document Type and Release Option
Thesis (open access)
Copyright Statement / License for Reuse
This work is licensed under a Creative Commons Attribution 4.0 License.
Department
Department of Chemistry and Biochemistry
Committee Chair
Beverly Briggs Penland
Committee Member 1
Mitch Weiland
Committee Member 2
Brandon Quillian
Abstract
The synthesis of palladium nanoparticles (Pd NPs) using materials-directed peptides is a novel, nontoxic approach which exerts a high level of control over the particle size and shape. This biomimetic technique is environmentally benign, featuring nonhazardous ligands and ambient conditions. Nanoparticles are extremely reactive catalysts, boasting a large surface-to-volume ratio when compared to their bulk counterparts. The rational design of these nanoparticles using peptides has been very successful in aqueous environments, but no research has been done to apply it in organic systems. As such, the biomimetic synthesis of Pd NPs in an organic system is here investigated, with ethanol and dimethyl sulfoxide (DMSO) as solvents of interest. These systems adapt palladium-binding peptides to incorporate a hydrophobic region on the -N terminus, -C terminus, and both N and C termini to aid in solvent interaction during nanoparticle synthesis. These peptides proved to successfully synthesize colloidal nanoparticles in both ethanol and DMSO. Their subsequent application as catalysts in the Suzuki-Miyaura carbon cross-coupling reaction facilitated a comparison of the peptide-capped nanoparticles’ catalytic activity. Catalytic studies indicate that the S2Pd4S2 peptide, with two hydrophobic regions, produced nanoparticles with the highest catalytic activity as compared to the other major peptides, suggesting that materials-directed peptides may be adapted and tuned to operate effectively in organic solvents.
OCLC Number
901236589
Catalog Permalink
https://galileo-georgiasouthern.primo.exlibrisgroup.com/permalink/01GALI_GASOUTH/1r4bu70/alma9916469948002950
Recommended Citation
Groover, Emily A., "Biomimetic Synthesis of Palladium Nanoparticles for Catalytic Application" (2022). Electronic Theses and Dissertations. 2523.
https://digitalcommons.georgiasouthern.edu/etd/2523
Research Data and Supplementary Material
No
