Tuning of catalytic properties for electrooxidation of small organic molecules on Pt-based thin films via controlled thermal treatment
Authorized Users Only
2019
Authors
Tripković, DušanPopović, Ksenija
Jovanović, Vladislava M.
Nogueira, Jessica Alves
Varela, Hamilton Brandao
Lopes, Pietro Papa
Strnčnik, Dušan
Stamenković, Vojislav
Marković, Nenad M.
Article (Published version)
,
Elsevier
Metadata
Show full item recordAbstract
Ability to utilize structure-function relationship in the design of electrocatalysts relies on fundamental understanding of physicochemical processes at the topmost surface. It has been demonstrated that reaction rate for majority of electrochemical reactions exhibit notable dependence on geometric arrangement of surface atoms due to varying levels of binding strength between different atomic structures and adsorbate molecules. Control of surface structure at nanoscale is being investigated here through a thin film approach. The surface characteristics of electrochemically deposited Pt thin films were probed for electrooxidation of small organic molecules such as formic acid and methanol. The low-index Pt single crystal electrodes were used for reactivity benchmarking which later guided thermal annealing processes, and ultimately, fine tuning of the ratio between (1 1 1) and (1 0 0) surface facets on Pt thin films. The tailored thin film structure is responsible for significant activat...ion of both formic acid and methanol oxidation reactions, which justifies the approach.
Keywords:
Pt thin films / thermal treatment / electro-oxidation / Formic acid / MethanolSource:
Journal of Catalysis, 2019, 371, 96-105Publisher:
- Elsevier
Funding / projects:
- New approach in designing materials for energy conversion and energy storage systems (RS-MESTD-Basic Research (BR or ON)-172060)
- U.S. Department of Energy Office of Science laboratory, operated by Chicago Argonne, LLC under Contract no. DE-AC02-06CH11357.
- São Paulo Research Foundation (FAPESP) #2013/16930-7
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) #306060/2017-5
DOI: 10.1016/j.jcat.2019.01.038
ISSN: 0021-9517
WoS: 000466251300011
Scopus: 2-s2.0-85061128720
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IHTMTY - JOUR AU - Tripković, Dušan AU - Popović, Ksenija AU - Jovanović, Vladislava M. AU - Nogueira, Jessica Alves AU - Varela, Hamilton Brandao AU - Lopes, Pietro Papa AU - Strnčnik, Dušan AU - Stamenković, Vojislav AU - Marković, Nenad M. PY - 2019 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2876 AB - Ability to utilize structure-function relationship in the design of electrocatalysts relies on fundamental understanding of physicochemical processes at the topmost surface. It has been demonstrated that reaction rate for majority of electrochemical reactions exhibit notable dependence on geometric arrangement of surface atoms due to varying levels of binding strength between different atomic structures and adsorbate molecules. Control of surface structure at nanoscale is being investigated here through a thin film approach. The surface characteristics of electrochemically deposited Pt thin films were probed for electrooxidation of small organic molecules such as formic acid and methanol. The low-index Pt single crystal electrodes were used for reactivity benchmarking which later guided thermal annealing processes, and ultimately, fine tuning of the ratio between (1 1 1) and (1 0 0) surface facets on Pt thin films. The tailored thin film structure is responsible for significant activation of both formic acid and methanol oxidation reactions, which justifies the approach. PB - Elsevier T2 - Journal of Catalysis T1 - Tuning of catalytic properties for electrooxidation of small organic molecules on Pt-based thin films via controlled thermal treatment VL - 371 SP - 96 EP - 105 DO - 10.1016/j.jcat.2019.01.038 ER -
@article{ author = "Tripković, Dušan and Popović, Ksenija and Jovanović, Vladislava M. and Nogueira, Jessica Alves and Varela, Hamilton Brandao and Lopes, Pietro Papa and Strnčnik, Dušan and Stamenković, Vojislav and Marković, Nenad M.", year = "2019", abstract = "Ability to utilize structure-function relationship in the design of electrocatalysts relies on fundamental understanding of physicochemical processes at the topmost surface. It has been demonstrated that reaction rate for majority of electrochemical reactions exhibit notable dependence on geometric arrangement of surface atoms due to varying levels of binding strength between different atomic structures and adsorbate molecules. Control of surface structure at nanoscale is being investigated here through a thin film approach. The surface characteristics of electrochemically deposited Pt thin films were probed for electrooxidation of small organic molecules such as formic acid and methanol. The low-index Pt single crystal electrodes were used for reactivity benchmarking which later guided thermal annealing processes, and ultimately, fine tuning of the ratio between (1 1 1) and (1 0 0) surface facets on Pt thin films. The tailored thin film structure is responsible for significant activation of both formic acid and methanol oxidation reactions, which justifies the approach.", publisher = "Elsevier", journal = "Journal of Catalysis", title = "Tuning of catalytic properties for electrooxidation of small organic molecules on Pt-based thin films via controlled thermal treatment", volume = "371", pages = "96-105", doi = "10.1016/j.jcat.2019.01.038" }
Tripković, D., Popović, K., Jovanović, V. M., Nogueira, J. A., Varela, H. B., Lopes, P. P., Strnčnik, D., Stamenković, V.,& Marković, N. M.. (2019). Tuning of catalytic properties for electrooxidation of small organic molecules on Pt-based thin films via controlled thermal treatment. in Journal of Catalysis Elsevier., 371, 96-105. https://doi.org/10.1016/j.jcat.2019.01.038
Tripković D, Popović K, Jovanović VM, Nogueira JA, Varela HB, Lopes PP, Strnčnik D, Stamenković V, Marković NM. Tuning of catalytic properties for electrooxidation of small organic molecules on Pt-based thin films via controlled thermal treatment. in Journal of Catalysis. 2019;371:96-105. doi:10.1016/j.jcat.2019.01.038 .
Tripković, Dušan, Popović, Ksenija, Jovanović, Vladislava M., Nogueira, Jessica Alves, Varela, Hamilton Brandao, Lopes, Pietro Papa, Strnčnik, Dušan, Stamenković, Vojislav, Marković, Nenad M., "Tuning of catalytic properties for electrooxidation of small organic molecules on Pt-based thin films via controlled thermal treatment" in Journal of Catalysis, 371 (2019):96-105, https://doi.org/10.1016/j.jcat.2019.01.038 . .