Improved electrocatalytic activity of Pt on carbon nanofibers for glucose oxidation mediated by support oxygen groups in Pt perimeter

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URI: http://hdl.handle.net/10498/31411

DOI: 10.1016/J.APCATB.2023.123046

ISSN: 0926-3373

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Author/s
Van der Ham, M.P.J.M.; Hersbach, T.J.P.; Delgado Jaén, Juan JoséAuthority UCA; Matson, B.D.; Lim, J.; Führer, M.; Van Haasterecht, T.; Verhoeven, M.W.G.M.; Hensen, E.J.M.; Sokaras, D.; Koper, M.T.M.; Bitter, J.H.
Date
2023
Department
Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
Source
Applied Catalysis B: Environmental - 2023, Vol. 338 pp. 1-12
Abstract
Support effects in supported metal catalysts are well studied for thermocatalytic reactions, but less studied for electrocatalytic reactions. Here, we prepared a series of Pt supported on carbon nanofiber catalysts which vary in their Pt particle size and the content of oxygen groups on the surface of the CNF. We show that the activity of these catalysts for electrocatalytic glucose oxidation relates linearly with the content of support oxygen groups. Since the electronic state of Pt (XAS) and Pt surface structure (CO-stripping) were indistinguishable for all materials, we conclude that sorption effects of glucose play a crucial role in catalytic activity. This was further confirmed by establishing a relation between the annulus of the Pt particles and the activity
Subjects
Pt on carbon nanofibers; Support oxygen groups; Electrocatalytic oxidation of glucose; Catalyst design; Perimeter
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Atribución 4.0 Internacional
This work is under a Creative Commons License Atribución 4.0 Internacional