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Tuning of catalytic properties for electrooxidation of small organic molecules on Pt-based thin films via controlled thermal treatment

Samo za registrovane korisnike
2019
Autori
Tripković, Dušan
Popović, Ksenija
Jovanović, Vladislava M.
Nogueira, Jessica Alves
Varela, Hamilton Brandao
Lopes, Pietro Papa
Strnčnik, Dušan
Stamenković, Vojislav
Marković, Nenad M.
Članak u časopisu (Objavljena verzija)
,
Elsevier
Metapodaci
Prikaz svih podataka o dokumentu
Apstrakt
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.

Ključne reči:
Pt thin films / thermal treatment / electro-oxidation / Formic acid / Methanol
Izvor:
Journal of Catalysis, 2019, 371, 96-105
Izdavač:
  • Elsevier
Projekti:
  • Nov pristup dizajniranju materijala za konverziju i skladištenje energije (RS-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
[ Google Scholar ]
6
5
URI
http://cer.ihtm.bg.ac.rs/handle/123456789/2876
Kolekcije
  • Radovi istraživača / Researchers' publications
Institucija
IHTM
TY  - 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  - http://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",
url = "http://cer.ihtm.bg.ac.rs/handle/123456789/2876",
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 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. Journal of Catalysis. 2019;371:96-105
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.
Journal of CatalysisElsevier., 371, 96-105.
https://doi.org/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" 371 (2019):96-105,
https://doi.org/10.1016/j.jcat.2019.01.038 .

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