The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid
Konferencijski prilog (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Due to their high electrocatalytic activity, Pt-based materials are widely investigated as electrocatalysts for the electro-oxidation of small organic molecules for fuel cells technology applications, contributing to the potential reduction of fossil fuel use in the near future. In addition to methanol, formic acid has also gained increasing attention as a potential fuel for direct fuel cells due to lower toxicity, non-flammability and a lower storage cost. The electro-oxidation of formic acid on Pt-based thin films is taking place predominantly via indirect pathway, through the dehydrogenation reaction of formic acid, with the formation of CO as a poisoning species. The activity of electrocatalysts is dependent both on surface structure and surface orientation in terms of the arrangement of the atoms at the surface. Controlled heat treatment led to the rearrangement of surface atoms thus enhancing the catalytic properties. In order to investigate changes in morphology before and after... thermal annealing, Pt/CrNi catalysts were characterized using an atomic force microscope (AFM). The performance of all catalysts was tested in formic acid electro-oxidation reaction. The synergistic effect of individual metallic components, in the designed catalyst, resulted in high activity and exceptional stability. The approach demonstrated in this work may promote the development of new generation of high-performance catalysts for use in direct formic acid fuel cells (DFAFCs).
Ključne reči:
Pt thin films / NiCr supports / thermal treatment / electro-oxidation / formic acidIzvor:
Book of Abstracts - 7th Conference of the Serbian Society for Ceramic Materials, June 14-16 2023, Belgrade, Serbia, 2023, 112-112Izdavač:
- Belgrade : Institute for Multidisciplinary Research
Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200026 (Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju - IHTM) (RS-MESTD-inst-2020-200026)
- AdCatFC - Advanced Catalysts for Low Temperature Fuel Cells: From Model System to Sustainable Catalysts (RS-ScienceFundRS-Ideje-7739802)
Institucija/grupa
IHTMTY - CONF AU - Milošević, Dragana AU - Stevanović, Sanja AU - Nikolić, Nebojša D. AU - Tripković, Dušan PY - 2023 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6412 AB - Due to their high electrocatalytic activity, Pt-based materials are widely investigated as electrocatalysts for the electro-oxidation of small organic molecules for fuel cells technology applications, contributing to the potential reduction of fossil fuel use in the near future. In addition to methanol, formic acid has also gained increasing attention as a potential fuel for direct fuel cells due to lower toxicity, non-flammability and a lower storage cost. The electro-oxidation of formic acid on Pt-based thin films is taking place predominantly via indirect pathway, through the dehydrogenation reaction of formic acid, with the formation of CO as a poisoning species. The activity of electrocatalysts is dependent both on surface structure and surface orientation in terms of the arrangement of the atoms at the surface. Controlled heat treatment led to the rearrangement of surface atoms thus enhancing the catalytic properties. In order to investigate changes in morphology before and after thermal annealing, Pt/CrNi catalysts were characterized using an atomic force microscope (AFM). The performance of all catalysts was tested in formic acid electro-oxidation reaction. The synergistic effect of individual metallic components, in the designed catalyst, resulted in high activity and exceptional stability. The approach demonstrated in this work may promote the development of new generation of high-performance catalysts for use in direct formic acid fuel cells (DFAFCs). PB - Belgrade : Institute for Multidisciplinary Research C3 - Book of Abstracts - 7th Conference of the Serbian Society for Ceramic Materials, June 14-16 2023, Belgrade, Serbia T1 - The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid SP - 112 EP - 112 UR - https://hdl.handle.net/21.15107/rcub_cer_6412 ER -
@conference{ author = "Milošević, Dragana and Stevanović, Sanja and Nikolić, Nebojša D. and Tripković, Dušan", year = "2023", abstract = "Due to their high electrocatalytic activity, Pt-based materials are widely investigated as electrocatalysts for the electro-oxidation of small organic molecules for fuel cells technology applications, contributing to the potential reduction of fossil fuel use in the near future. In addition to methanol, formic acid has also gained increasing attention as a potential fuel for direct fuel cells due to lower toxicity, non-flammability and a lower storage cost. The electro-oxidation of formic acid on Pt-based thin films is taking place predominantly via indirect pathway, through the dehydrogenation reaction of formic acid, with the formation of CO as a poisoning species. The activity of electrocatalysts is dependent both on surface structure and surface orientation in terms of the arrangement of the atoms at the surface. Controlled heat treatment led to the rearrangement of surface atoms thus enhancing the catalytic properties. In order to investigate changes in morphology before and after thermal annealing, Pt/CrNi catalysts were characterized using an atomic force microscope (AFM). The performance of all catalysts was tested in formic acid electro-oxidation reaction. The synergistic effect of individual metallic components, in the designed catalyst, resulted in high activity and exceptional stability. The approach demonstrated in this work may promote the development of new generation of high-performance catalysts for use in direct formic acid fuel cells (DFAFCs).", publisher = "Belgrade : Institute for Multidisciplinary Research", journal = "Book of Abstracts - 7th Conference of the Serbian Society for Ceramic Materials, June 14-16 2023, Belgrade, Serbia", title = "The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid", pages = "112-112", url = "https://hdl.handle.net/21.15107/rcub_cer_6412" }
Milošević, D., Stevanović, S., Nikolić, N. D.,& Tripković, D.. (2023). The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid. in Book of Abstracts - 7th Conference of the Serbian Society for Ceramic Materials, June 14-16 2023, Belgrade, Serbia Belgrade : Institute for Multidisciplinary Research., 112-112. https://hdl.handle.net/21.15107/rcub_cer_6412
Milošević D, Stevanović S, Nikolić ND, Tripković D. The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid. in Book of Abstracts - 7th Conference of the Serbian Society for Ceramic Materials, June 14-16 2023, Belgrade, Serbia. 2023;:112-112. https://hdl.handle.net/21.15107/rcub_cer_6412 .
Milošević, Dragana, Stevanović, Sanja, Nikolić, Nebojša D., Tripković, Dušan, "The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid" in Book of Abstracts - 7th Conference of the Serbian Society for Ceramic Materials, June 14-16 2023, Belgrade, Serbia (2023):112-112, https://hdl.handle.net/21.15107/rcub_cer_6412 .