Please use this identifier to cite or link to this item: http://ena.lp.edu.ua:8080/handle/ntb/46339
Title: Електроокиснення CH3OH на поверхні наноструктурованих Pd-Au/GC електродів
Other Titles: Electrochemical oxidation of CH3OH on the surface of nanostructured bimetallic Pd-Au/GC electrodes
Authors: Добровецька, О. Я.
Стадник, Р. В.
Dobrovetska, O. Ya.
Stadnyk, R. V.
Affiliation: Національний університет “Львівська політехніка”
Bibliographic description (Ukraine): Добровецька О. Я. Електроокиснення CH3OH на поверхні наноструктурованих Pd-Au/GC електродів / О. Я. Добровецька, Р. В. Стадник // Chemistry, Technology and Application of Substances. — Lviv : Lviv Politechnic Publishing House, 2018. — Том 1. — № 2. — С. 105–110.
Bibliographic description (International): Dobrovetska O. Ya. Electrochemical oxidation of CH3OH on the surface of nanostructured bimetallic Pd-Au/GC electrodes / O. Ya. Dobrovetska, R. V. Stadnyk // Chemistry, Technology and Application of Substances. — Lviv : Lviv Politechnic Publishing House, 2018. — Vol 1. — No 2. — P. 105–110.
Is part of: Chemistry, Technology and Application of Substances, 2 (1), 2018
Issue: 2
Issue Date: 26-Feb-2018
Publisher: Lviv Politechnic Publishing House
Place of the edition/event: Lviv
Lviv
Keywords: біметалеві наноструктуровані електроди
Pd-Au
каталіз
електроокиснення
СН3ОН
bimetal nanostructured electrodes
Pd-Au
catalysis
elecrtooxidation
CH3OH
Number of pages: 6
Page range: 105-110
Start page: 105
End page: 110
Abstract: Методом циклічної вольтамперометрії досліджено каталітичну активність нано- структурованих Pd-Au/GC електродів у реакціях електрохімічного окиснення СН3ОН у лужному середовищі. Встановлено, що під час електрохімічного окиснення метанолу на поверхні Pd-Au/GC проявляється послідовна каталітична дія компонентів Pd та Au. Збільшення вмісту паладію пришвидшує повне окиснення метанолу, сприяючи зменшенню вмісту проміжних сполук, що підтверджує високу ефективність наноструктурованих Pd-Au/GC електродів.
The catalytic activity of nanostructured Pd-Au in electrochemical oxidation of СН3ОН in an alkaline environment was researched by the method of cyclic voltammetry. It was found, that during the in electrochemical oxidation of methanol on the surface of the Pd-Au/GC electrode is manifested sequential catalytic action of components Pd and Au. An increase in the content of palladium accelerates the complete oxidation of methane, contributing to a decrease in the content of intermediates, indicating the high efficiency of nanostructured Pd- Au/GC electrodes.
URI: http://ena.lp.edu.ua:8080/handle/ntb/46339
Copyright owner: © Національний університет „Львівська політехніка“, 2018
© Добровецька О. Я., Стадник Р. В., 2018
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2. Guzman J. Catalysis by supported gold: correlation between catalytic activity for CO oxidation and oxidation states of gold, J. Guzman, B. C. Gates, J. Amer. Chem. Soc, 2004, Vol. 126, No. 9, P. 2672–2673.
3. Savadogo O. New palladium alloys catalyst for the oxygen reduction reaction in an acid medium, O. Savadogo, K. Lee, K. Oishi, S. Mitsushima, N. Kamiya, Electrochem. Commun, 2004, Vol. 6, No. 2, P. 105–109.
4. Fernandez J. L. Thermodynamic guidelines for the design of bimetallic catalysts for oxygen electroreduction and rapid screening by scanning electrochemical microscopy. M-Co (M: Pd, Ag, Au), J. L. Fernandez, D. A. Walsh, A. J. Bard, J. Am. Chem. Soc. V, 2005, Vol. 127, No. 1, P. 357–365.
5. Sarkar A. Low cost Pd–W nanoalloy electrocatalysts for oxygen reduction reaction in fuel cells, A. Sarkar, A. V. Murugan, A. Manthiram, J. Mater. Chem, 2009, Vol. 19, N 1, P. 159–165.
6. Wang W. Carbon-supported Pd-Co bimetallic nanoparticles as electrocatalysts for the oxygen reduction reaction, W. Wang, D. Zheng, C. Dua, Z. Zoua, X. Zhang, B. Xia, H. Yang, D. L. Akins, J. Power Sources, 2007, Vol. 167, No. 2, P. 243–249.
7. Xu J. B. Stabilization of the palladium electrocatalyst with alloyed gold for ethanol oxidation, J. B. Xu, T. S. Zhao, S. Y. Shen, Y. S. Li., Int. J. Hydrogen Energy, 2010, Vol. 35, P. 6490–6500.
8. Hong W. Synthesis of dendritic PdAu nanoparticles with enhanced electrocatalytic activity, W. Hong, C. Shang, J. Wang, E. Wang, Electrochem. Commun, 2014, Vol. 48, P. 65–68.
9. Sirlane G. da Silva. PdAu/C Electrocatalysts as anodes for direct formate fuel cell, Sirlane G. da Silva, Júlio César M. Silva, Guilherme S. Buzzo, Estevam V. Spinacé, Almir O. Neto, Mônica H. M. T. Assumpção, Electrocatalysis, 2015, Vol. 6, P. 442–446.
10. Renjith A. One step preparation of ‘ready to use’ Au@Pd nanoparticle modified surface using deep eutectic solvents and a study of its electrocatalytic properties in methanol oxidation reaction, A. Renjith, V. Lakshminarayanan, J. Mater. Chem. A, 2015, Vol. 3, No. 6, P. 30193028.
11. Yin Z. Supported bimetallic PdAu nanoparticles with superior electrocatalytic activity towards methanol oxidation, Z. Yin, M. Chi, Q. Zhu, D. Ma, J. S. Xinhe, J. Mater. Chem. A, 2013, Vol. 1, No. 32, P. 9157–9163.
12. Pokhmurskii V. I. Formation of palladium nanoparticles under pulse current in a dimethylformamide solution, V. I. Pokhmurskii, O. I. Kuntyi, S. A. Kornii, O. I. Bilan’, E. V. Okhermchuk, Protection of Metals and Physic. Chem. Surfac, 2011, Vol. 47, P. 59–62.
13. Sus L. Controlled gold deposition by pulse electrolysis, L. Sus, Ye. Okhremchuk, I. Saldan, O. Kuntyi, O. Reshetnyak, S. Korniy, Materials Letters, 2015, Vol. 139, P. 296–299.
14. Fratini E. Nucleation and growth of Au and Au–Pd nanoparticles at the beginning of electrochemical deposition, E. Fratini, A. Girella, I. Saldan, C. Milanese, O. Dobrovetska, L. Sus, Ye. Okhremchuk, O. Kuntyi, O. Reshetnyak, Materials Letters, 2015, Vol. 161, P. 263–266.
Content type: Article
Appears in Collections:Chemistry, Technology and Application of Substances. – 2018. – Vol. 1, No. 2



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