Dissertation defence (Chemistry): MSc Adefunke O. Koyejo
Time
10.5.2024 at 12.00 - 16.00
MSc Adefunke O. Koyejo defends the dissertation in Chemistry titled “Electrocatalysts for environmental mitigation: Synthesis, characterization and application” at the University of Turku on 10 May 2024 at 12.00 (University of Turku, Natura, Lecture Hall X, Turku).
Opponent: Professor Csaba Janaky (University of Szeged, Hungary)
Custos: Professor Carita Kvarnström (University of Turku)
Doctoral Dissertation at UTUPub: https://urn.fi/URN:ISBN:978-951-29-9685-8
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Summary of the Doctoral Dissertation:
This research focuses on promoting sustainability by addressing two important phenomenon that raise significant environmental concerns (4NP and CO2 conversion). Electrocatalytic materials consisting of metal, metal oxides and graphene supports was explored for the conversion of 4-nitrophenol, 4NP and carbon dioxide (CO2) to value-added chemicals. With a focus on catalysts with high stability, activity, and ivity, various methods for catalyst synthesis were explored. All materials showed significant activity for 4NP electrocatalysis and CO2 electrocatalysis (ERCO2).
This research further introduces the use of RRDE as a suitable electroanalytical technique for the detection of product formed during CO2 reduction. Acetic acid, AA was qualitatively detected on the RRDE as a liquid product formed during. The formation of AA was validated using NMR and HPLC techniques.
The outcome of this research is of significant advantage to the development of catalyst materials and the improvement of electrochemical technique for energy conversion, storage, and environmental remediation.
Opponent: Professor Csaba Janaky (University of Szeged, Hungary)
Custos: Professor Carita Kvarnström (University of Turku)
Doctoral Dissertation at UTUPub: https://urn.fi/URN:ISBN:978-951-29-9685-8
***
Summary of the Doctoral Dissertation:
This research focuses on promoting sustainability by addressing two important phenomenon that raise significant environmental concerns (4NP and CO2 conversion). Electrocatalytic materials consisting of metal, metal oxides and graphene supports was explored for the conversion of 4-nitrophenol, 4NP and carbon dioxide (CO2) to value-added chemicals. With a focus on catalysts with high stability, activity, and ivity, various methods for catalyst synthesis were explored. All materials showed significant activity for 4NP electrocatalysis and CO2 electrocatalysis (ERCO2).
This research further introduces the use of RRDE as a suitable electroanalytical technique for the detection of product formed during CO2 reduction. Acetic acid, AA was qualitatively detected on the RRDE as a liquid product formed during. The formation of AA was validated using NMR and HPLC techniques.
The outcome of this research is of significant advantage to the development of catalyst materials and the improvement of electrochemical technique for energy conversion, storage, and environmental remediation.
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