Bimetallic electrocatalysts for hydrogen evolution and oxidation reaction in alkaline media

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Journal Title
Journal ISSN
Volume Title
Kemian tekniikan korkeakoulu | Master's thesis
Date
2023-08-22
Department
Major/Subject
Funtional Materials for Global Challenges
Mcode
CHEM3061
Degree programme
Master's Programme in Advanced Materials for Innovation and Sustainability
Language
en
Pages
64+8
Series
Abstract
The present work Focus on synthesizing platinum-based bimetallic catalysts with a metallic atomic ratio of 1:1, supported on ozone-treated carbon nanotubes, for applications in hydrogen evolution and hydrogen oxidation reactions in alkaline media. The synthesized materials are comprehensively characterized to determine their physical properties including structures, dispersion, and morphology. Additionally, the chemical composition is measured to determine the output metallic ratio. Initial results indicate unsatisfactory outcomes, suggesting a need for further investigation. The materials are extensively evaluated in term of their catalytic performances toward hydrogen evolution and hydrogen oxidation reactions in alkaline media. The primary objective is to establish a correlation between the oxophilicity of the second metal and the observed catalytic performances. Promising trends are being identified in the performance of the bimetallic catalyst, indicating the potential influence of the second metal on the catalyst's performance. However, further studies are required to validate these findings.
Description
Supervisor
Kallio, Tanja
Thesis advisor
Suominen, Milla
Keywords
electrocatalyst, bimetallic, nanoparticles, overpotential, hydrogen, oxophilicity
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