Naslov
Mechanochemical synthesis of fluoride-free Ti3C2

Autori
Ljubek, Gabrijela ; Kralj, Magdalena ; Kraljić Roković, Marijana ; Racar, Marko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
19th Ružička days "Today science – tomorrow industry" : book of abstracts = 19. međunarodni znanstveno-stručni skup Ružičkini dani "Danas znanost - sutra industrija" : knjiga sažetaka / Babić, Jurislav - Osijek : Zagreb : Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku ; Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2022, 71-71

Skup
International Conference 19th Ružička days "Today science – tomorrow industry" = 19. međunarodni znanstveno-stručni skup Ružičkini dani "Danas znanost - sutra industrija"

Mjesto i datum
Vukovar, Hrvatska, 21.09.2022. - 23.09.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
2D materijali : mehanokemija ; MXene
(2D materials ; ball-milling ; mechanochemistry ; solid state)

Sažetak
MXenes, a family of two-dimensional (2D) layered early transition metal carbides and carbonitrides, have rapidly drawn intensive research attention due to their high metallic conductivity, large theoretical specific surface area, excellent mechanical properties, and high hydrophilicity. Their general chemical formula is Mn+1XnTx (n=2- 4), where M represents a transition metal, X is carbon and/or nitrogen, and T stands for surface termination groups (–OH, –F, –O) [1]. Ti3C2Tx was the first MXene reported in 2011, and more than 25 different MXene compositions have been synthesised since then. To date, most MXenes have been prepared through the wet chemical etching methods where A-element atomic layers (e.g., aluminum) are etched from the Mn+1AXn phase (e.g., Ti3AlC2) using highly hazardous HF or LiF/HCl solutions [2]. Therefore, there is an urgent need to explore safe, reliable, and fluorine-free synthetic methods to prepare MXene. In this work, we describe several different fluoride-free mechanochemical routes for the preparation of the Ti3C2 MXene from the Ti3AlC2 MAX phase. It consists of a ball-milling of the MAX phase with LiCl or ZnCl2, followed by washing and ultrasonication in order to completely exfoliate the MXene sheets. The prepared Ti3C2 was studied by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), ultraviolet-visible (UV/Vis) spectrophotometry and dynamic light scattering (DLS). The results reported here pave the way for new preparation methods for various fluoride-free MXenes as ideal candidates for many functional applications such as energy storage, catalysis, electronics, and sensors.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Temeljne tehničke znanosti

POVEZANOST RADA