@conference{
author = "Stevanović, Sanja and Milošević, Dragana and Pergal, Marija and Pešić, Ivan and Tripković, Dušan and Rakočević, Lazar and Maksimović, Vesna",
year = "2024",
abstract = "In recent years, direct methanol fuel cells (DMFC) as renewable energy sources are increasingly considered one of
the most environmentally friendly and promising alternatives for meeting growing energy needs. Although some
DMFC technologies are already commercially available there are still several challenges that need to be improved
for successful commercialization of DMFC. The biggest challenges are how to overcome the high cost of Pt-based
catalysts used in fuel cell reactions, the high catalyst loading required for methanol anodic oxidation reaction,
poisoning of Pt catalysts with CO interemdiers during methanol electro-oxidation, methanol crossover issues, and
most significantly long-term catalyst durability. One of the main reasons for agglomeration and detachment of
platinum nanoparticles from the catalyst support is degradation of the support due to poor oxidation stability, i.e.
non-resistance to electrochemical degradation in extremely difficult conditions in the working environment of fuel
cells. Recent studies have shown that MXenes can be stable and promising support for Pt nanoparticles with
improved reaction kinetics for methanol electro-oxidation reaction. MXenes, a rapidly developing family of twodimensional layered materials, has shown great potential for use in energy conversion and storage technologies
due to its high specific surface area, good resistance to electrochemical corrosion, strong interaction with metal
support and also enhanced electrical conductivity. For this reason, MXenes may find use as a catalyst support
material for anode processes in fuel cells. This is mainly contributed by the composition of MXenes since they have
various functional groups and metal nitride or metal carbonitride materials. The chemical formula of MXenes is
Mn+1XnTn, where M represents transition metals, X represents C/N and T represents chemical functional groups such
as –OH, -O, and –F groups on the MXene surface.
In this research, platinum nanoparticles deposited on MXenes were synthesized by the microwave-assisted polyol
method. The electrochemical behaviour of the synthesized catalyst was investigated by cyclic voltammetry, the
electro-oxidation of adsorbed CO, and hronoamperometric method. The physicochemical properties of prepared
catalysts were characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The high
catalytic activity of the Pt/MX catalyst was achieved thanks to the well-balanced conditions of the microwave
synthesis, as well as the choice of MXene as the catalyst support.",
publisher = "Serbian Chemical Society",
journal = "9th Regional Symposium on Electrochemistry - South-East Europe, Book of Abstracts, June 3-7, 2024, Novi Sad, Serbia",
title = "MXene-supported platinum catalyst for effective methanol electrooxidation",
pages = "92-92",
doi = "10.5281/zenodo.11194247"
}