Electrooxidation of 1-propanol on the mixture of nanoparticles of Pt and RuO2
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2021
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The catalyst composed of a mixture of nanocrystals of metallic Pt and rutile RuO2 was prepared by a thermal procedure on a titanium substrate. An effect of the mixture composition on its microstructure, surface properties, and catalytic activity for an electrooxidation of 1-propanol in an alkaline environment was examined. The relation between the microstructure of the Pt/RuO2 catalyst and its catalytic activity was determined. It was found that the increase in the RuO2 content resulted in the increase in the catalytic activity, which reached its maximum value and then decreased. The catalytic effect was caused by the bifunctional mechanism of the catalyst Pt/RuO2. Ru-OH species were formed on Ru atoms of RuO2 nanocrystals at more negative potentials than on Pt. These oxy species oxidized firmly adsorbed intermediates propionyl, COad, C2Hyad, and CHad and, thus, released Pt atoms for the adsorption and dehydrogenation of the subsequent molecules of 1-propanol.
Izvor:
Monatshefte für Chemie - Chemical Monthly, 2021, 152, 5, 489-496Izdavač:
- Springer Link
Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200288 (Inovacioni centar Hemijskog fakulteta u Beogradu doo) (RS-MESTD-inst-2020-200288)
- Usmerena sinteza, struktura i svojstva multifunkcionalnih materijala (RS-MESTD-Basic Research (BR or ON)-172057)
DOI: 10.1007/s00706-021-02769-9
ISSN: 0026-9247
WoS: 000643165000002
Scopus: 2-s2.0-85104837209
Kolekcije
Institucija/grupa
Inovacioni centar / Innovation CentreTY - JOUR AU - Spasojević, Milica AU - Ribić-Zelenović, Lenka AU - Spasojević, Miroslav PY - 2021 UR - https://cherry.chem.bg.ac.rs/handle/123456789/4529 AB - The catalyst composed of a mixture of nanocrystals of metallic Pt and rutile RuO2 was prepared by a thermal procedure on a titanium substrate. An effect of the mixture composition on its microstructure, surface properties, and catalytic activity for an electrooxidation of 1-propanol in an alkaline environment was examined. The relation between the microstructure of the Pt/RuO2 catalyst and its catalytic activity was determined. It was found that the increase in the RuO2 content resulted in the increase in the catalytic activity, which reached its maximum value and then decreased. The catalytic effect was caused by the bifunctional mechanism of the catalyst Pt/RuO2. Ru-OH species were formed on Ru atoms of RuO2 nanocrystals at more negative potentials than on Pt. These oxy species oxidized firmly adsorbed intermediates propionyl, COad, C2Hyad, and CHad and, thus, released Pt atoms for the adsorption and dehydrogenation of the subsequent molecules of 1-propanol. PB - Springer Link T2 - Monatshefte für Chemie - Chemical Monthly T1 - Electrooxidation of 1-propanol on the mixture of nanoparticles of Pt and RuO2 VL - 152 IS - 5 SP - 489 EP - 496 DO - 10.1007/s00706-021-02769-9 ER -
@article{ author = "Spasojević, Milica and Ribić-Zelenović, Lenka and Spasojević, Miroslav", year = "2021", abstract = "The catalyst composed of a mixture of nanocrystals of metallic Pt and rutile RuO2 was prepared by a thermal procedure on a titanium substrate. An effect of the mixture composition on its microstructure, surface properties, and catalytic activity for an electrooxidation of 1-propanol in an alkaline environment was examined. The relation between the microstructure of the Pt/RuO2 catalyst and its catalytic activity was determined. It was found that the increase in the RuO2 content resulted in the increase in the catalytic activity, which reached its maximum value and then decreased. The catalytic effect was caused by the bifunctional mechanism of the catalyst Pt/RuO2. Ru-OH species were formed on Ru atoms of RuO2 nanocrystals at more negative potentials than on Pt. These oxy species oxidized firmly adsorbed intermediates propionyl, COad, C2Hyad, and CHad and, thus, released Pt atoms for the adsorption and dehydrogenation of the subsequent molecules of 1-propanol.", publisher = "Springer Link", journal = "Monatshefte für Chemie - Chemical Monthly", title = "Electrooxidation of 1-propanol on the mixture of nanoparticles of Pt and RuO2", volume = "152", number = "5", pages = "489-496", doi = "10.1007/s00706-021-02769-9" }
Spasojević, M., Ribić-Zelenović, L.,& Spasojević, M.. (2021). Electrooxidation of 1-propanol on the mixture of nanoparticles of Pt and RuO2. in Monatshefte für Chemie - Chemical Monthly Springer Link., 152(5), 489-496. https://doi.org/10.1007/s00706-021-02769-9
Spasojević M, Ribić-Zelenović L, Spasojević M. Electrooxidation of 1-propanol on the mixture of nanoparticles of Pt and RuO2. in Monatshefte für Chemie - Chemical Monthly. 2021;152(5):489-496. doi:10.1007/s00706-021-02769-9 .
Spasojević, Milica, Ribić-Zelenović, Lenka, Spasojević, Miroslav, "Electrooxidation of 1-propanol on the mixture of nanoparticles of Pt and RuO2" in Monatshefte für Chemie - Chemical Monthly, 152, no. 5 (2021):489-496, https://doi.org/10.1007/s00706-021-02769-9 . .