Väitös (kemia): MSc Adefunke O. Koyejo
Aika
10.5.2024 klo 12.00 - 16.00
MSc Adefunke O. Koyejo esittää väitöskirjansa ”Electrocatalysts for environmental mitigation: Synthesis, characterization and application” julkisesti tarkastettavaksi Turun yliopistossa perjantaina 10.05.2024 klo 12.00 (Turun yliopisto, Natura, luentosali X, Turku).
Vastaväittäjänä toimii professori Csaba Janaky (University of Szeged, Unkari) ja kustoksena professori Carita Kvarnström (Turun yliopisto). Tilaisuus on englanninkielinen. Väitöksen alana on kemia.
Väitöskirja yliopiston julkaisuarkistossa: https://urn.fi/URN:ISBN:978-951-29-9685-8
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Tiivistelmä väitöstutkimuksesta:
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.
Vastaväittäjänä toimii professori Csaba Janaky (University of Szeged, Unkari) ja kustoksena professori Carita Kvarnström (Turun yliopisto). Tilaisuus on englanninkielinen. Väitöksen alana on kemia.
Väitöskirja yliopiston julkaisuarkistossa: https://urn.fi/URN:ISBN:978-951-29-9685-8
***
Tiivistelmä väitöstutkimuksesta:
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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