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Abstract
In this study, Co-bearing Metal-Organic Frameworks (MOFs) are grown via a facile solvothermal process on the surface of two kinds of conductive substrates – titanium dioxide nanotubes (TiO2NT) and fluorine-doped tin oxide (FTO) glass and tested as electrodes in the electrochemical hydrogen evolution reaction (HER). The materials derived from three organic linkers - terephthalic acid (Co-BDC), 2-aminoterephthalic acid (Co-BDCNH2), and trimesic acid (Co-BTC) are characterized by FTIR, Raman, XRD, SEM-EDS, BET, and XPS. Among the layers on FTO without post-synthesis treatment, Co-BTC shows the highest activity (overpotential of HER 1.72 V vs. Ag/AgCl/KCl). The effects of substrate change on TiO2NT and annealing of Co-BTC layers in air and argon on their electrocatalytic properties are also studied. Using TiO2 nanotubes as a substrate and annealing the material in air results in a reduction of the hydrogen evolution overpotential to 1.44 V vs. Ag/AgCl/KCl and a significant reduction in the exchange current density.
Citations
Authors (10)
-
Maria Alaide de Oliveira
-
Bráulio Silva Barros
-
Joanna Kulesza dr inż.
-
Anna Ilnicka
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
no. 92,
pages 90 - 101,
ISSN: 0360-3199 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Łukasik N., Roda D., de Oliveira M. A., Silva Barros B., Kulesza J., Łapiński M., Świątek H., Ilnicka A., Klimczuk T., Szkoda M.: Hydrogen evolution reaction catalyzed by Co-based metal-organic frameworks and their derivatives// INTERNATIONAL JOURNAL OF HYDROGEN ENERGY -,iss. 92 (2024), s.90-101
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.ijhydene.2024.10.262
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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