Synthesis of Ti3AlC2 max phase under vacuum, its structural characterization and using for Ti3C2Tx MXene preparation

E. A. Ovodok; M. I. Ivanovskaya; S. K. Poznyak; A. M. Maltanova; I. I. Azarko; M. Micusik; M. Omastava; Andrejs Aņiskevičs

doi:10.1016/j.tsf.2023.139759

Synthesis of Ti3AlC2 max phase under vacuum, its structural characterization and using for Ti3C2Tx MXene preparation

E. A. Ovodok^*
, M. I. Ivanovskaya
, S. K. Poznyak
, A. M. Maltanova
, I. I. Azarko
, M. Micusik
, M. Omastava
, Andrejs Aņiskevičs

^*Šī darba korespondējošais autors

Latvijas Universitāte

Belarusian State University
Slovak Academy of Sciences

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

27 Atsauces (Scopus)

Kopsavilkums

The MAX phase (Ti₃AlC₂) was synthesized by sintering Ti, TiC, Al precursors under vacuum. The effect of temperature on the formation of the Ti₃AlC₂ phase was studied. The MAX phase with a minimum amount of impurities was obtained under vacuum at 1300 °C. The phase composition, structure, and state of the surface of the MAX phase were investigated. It was found that carbon vacancies are formed in the Ti₃AlC₂ lattice. Oxidized states of Ti, C, and Al elements are present on the surface of Ti₃AlC₂ crystallites. Despite the presence of structural defects and oxidized surface states of titanium and aluminum, the synthesized MAX phase was suitable for preparing 2D MXene particles (Ti₃C₂T_x) and highly concentrated stable colloidal solutions (up to 5 g/L) based on them. Thin MXene films, prepared from such Ti₃C₂T_x colloidal solution, were characterized by a high electrical conductivity of 3000 S/cm.

Oriģinālvaloda	Angļu
Raksta numurs	139759
Lapas (no-līdz)	1-9
Žurnāls	Thin Solid Films
Sējums	771
DOIs	https://doi.org/10.1016/j.tsf.2023.139759
Publikācijas statuss	Publicēts - 30 apr. 2023

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@article{533328c0850a4d6c926c69fabaec0273,

title = "Synthesis of Ti3AlC2 max phase under vacuum, its structural characterization and using for Ti3C2Tx MXene preparation",

abstract = "The MAX phase (Ti3AlC2) was synthesized by sintering Ti, TiC, Al precursors under vacuum. The effect of temperature on the formation of the Ti3AlC2 phase was studied. The MAX phase with a minimum amount of impurities was obtained under vacuum at 1300 °C. The phase composition, structure, and state of the surface of the MAX phase were investigated. It was found that carbon vacancies are formed in the Ti3AlC2 lattice. Oxidized states of Ti, C, and Al elements are present on the surface of Ti3AlC2 crystallites. Despite the presence of structural defects and oxidized surface states of titanium and aluminum, the synthesized MAX phase was suitable for preparing 2D MXene particles (Ti3C2Tx) and highly concentrated stable colloidal solutions (up to 5 g/L) based on them. Thin MXene films, prepared from such Ti3C2Tx colloidal solution, were characterized by a high electrical conductivity of 3000 S/cm.",

keywords = "Vacuum, Ti AlC max phase, High-temperature synthesis, Structure, Ti C T MXene, Thin film",

author = "Ovodok, \{E. A.\} and Ivanovskaya, \{M. I.\} and Poznyak, \{S. K.\} and Maltanova, \{A. M.\} and Azarko, \{I. I.\} and M. Micusik and M. Omastava and Andrejs Aņiskevi{\v c}s",

note = "Publisher Copyright: {\textcopyright} 2023",

year = "2023",

month = apr,

day = "30",

doi = "10.1016/j.tsf.2023.139759",

language = "English",

volume = "771",

pages = "1--9",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Synthesis of Ti3AlC2 max phase under vacuum, its structural characterization and using for Ti3C2Tx MXene preparation

AU - Ovodok, E. A.

AU - Ivanovskaya, M. I.

AU - Poznyak, S. K.

AU - Maltanova, A. M.

AU - Azarko, I. I.

AU - Micusik, M.

AU - Omastava, M.

AU - Aņiskevičs, Andrejs

PY - 2023/4/30

Y1 - 2023/4/30

N2 - The MAX phase (Ti3AlC2) was synthesized by sintering Ti, TiC, Al precursors under vacuum. The effect of temperature on the formation of the Ti3AlC2 phase was studied. The MAX phase with a minimum amount of impurities was obtained under vacuum at 1300 °C. The phase composition, structure, and state of the surface of the MAX phase were investigated. It was found that carbon vacancies are formed in the Ti3AlC2 lattice. Oxidized states of Ti, C, and Al elements are present on the surface of Ti3AlC2 crystallites. Despite the presence of structural defects and oxidized surface states of titanium and aluminum, the synthesized MAX phase was suitable for preparing 2D MXene particles (Ti3C2Tx) and highly concentrated stable colloidal solutions (up to 5 g/L) based on them. Thin MXene films, prepared from such Ti3C2Tx colloidal solution, were characterized by a high electrical conductivity of 3000 S/cm.

AB - The MAX phase (Ti3AlC2) was synthesized by sintering Ti, TiC, Al precursors under vacuum. The effect of temperature on the formation of the Ti3AlC2 phase was studied. The MAX phase with a minimum amount of impurities was obtained under vacuum at 1300 °C. The phase composition, structure, and state of the surface of the MAX phase were investigated. It was found that carbon vacancies are formed in the Ti3AlC2 lattice. Oxidized states of Ti, C, and Al elements are present on the surface of Ti3AlC2 crystallites. Despite the presence of structural defects and oxidized surface states of titanium and aluminum, the synthesized MAX phase was suitable for preparing 2D MXene particles (Ti3C2Tx) and highly concentrated stable colloidal solutions (up to 5 g/L) based on them. Thin MXene films, prepared from such Ti3C2Tx colloidal solution, were characterized by a high electrical conductivity of 3000 S/cm.

KW - Vacuum

KW - Ti AlC max phase

KW - High-temperature synthesis

KW - Structure

KW - Ti C T MXene

KW - Thin film

UR - https://www.sciencedirect.com/science/article/pii/S0040609023000883

UR - https://www.scopus.com/pages/publications/85149938793

U2 - 10.1016/j.tsf.2023.139759

DO - 10.1016/j.tsf.2023.139759

M3 - Article

SN - 0040-6090

VL - 771

SP - 1

EP - 9

JO - Thin Solid Films

JF - Thin Solid Films

M1 - 139759

ER -

Synthesis of Ti3AlC2 max phase under vacuum, its structural characterization and using for Ti3C2Tx MXene preparation

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