20–23 Sept 2023
Metropol Lake Resort, Ohrid
Europe/Skopje timezone

Design of PtSnZn nanocatalysts for anodic reactions in fuel cells

Not scheduled
20m
Metropol Lake Resort, Ohrid

Metropol Lake Resort, Ohrid

Poster presentation

Speaker

Dr Sanja Stevanović (University of Belgrade - Institute of Chemistry, Technology and Metallurgy, Njegoševa 12, 11000 Belgrade, Republic of Serbia)

Description

In order to achieve widespread application of fuel cell technology, the development of an efficient and economical catalyst is a crucial step. Reducing the diameter of catalyst particles, producing particles with a specific orientation surface, and alloying noble metals with less expensive metals are possible approaches to improve catalyst performance. This study will be focused on novel ways for creating PtSnZn catalysts that are more effective for the anodic reactions in fuel cell such are methanol, ethanol and formic acid oxidation reactions. PtZn and PtSnZn nanoparticles were produced using the microwave assisted polyol method and were supported on high surface area carbon Vulcan XC-72R material. The electrochemical behavior of synthesized catalysts was investigated utilizing the cyclic voltammetry, chronoamperometric technique, and electro-oxidation of adsorbed CO. To determine the catalyst's physicochemical characteristics, X-ray diffraction (XRD), transmission electron microscopy analysis (TEM), and thermogravimetric analysis (TGA) were used. High catalytic activity of the PtSnZn/C catalysts was achieved thanks to the benefits of microwave synthesis and carefully adjusted metal alloying.
Acknowledgements: This work was financially supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia (contract no. 451-03-68/2022-14/200026) and the Science Fund of the Republic of Serbia under grant no. 7739802.

Keywords: platinum catalysts; methanol oxidation; ethanol oxidation, formic acid oxidation;

Primary authors

Dr Sanja Stevanović (University of Belgrade - Institute of Chemistry, Technology and Metallurgy, Njegoševa 12, 11000 Belgrade, Republic of Serbia) Dr Vladan Ćosović (University of Belgrade - Institute of Chemistry, Technology and Metallurgy, Njegoševa 12, 11000 Belgrade, Republic of Serbia)

Co-authors

Dr Dragana Milošević (University of Belgrade - Institute of Chemistry, Technology and Metallurgy, Njegoševa 12, 11000 Belgrade, Republic of Serbia) Dr Dušan Tripković (University of Belgrade - Institute of Chemistry, Technology and Metallurgy, Njegoševa 12, 11000 Belgrade, Republic of Serbia) Dr Nebojša Nikolić (University of Belgrade - Institute of Chemistry, Technology and Metallurgy, Njegoševa 12, 11000 Belgrade, Republic of Serbia) Dr Vesna Maksimović (University of Belgrade - Vinča Institute of Nuclear Sciences, Mike Petrovića Alasa 12-14, 11351 Vinča-Belgrade, Republic of Serbia)

Presentation materials