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NanoMat 2018
Nano Research & Applications
ISSN: 2471-9838
Page 51
April 26-27, 2018
Rome, Italy
17
th
Edition of International Conference on
Emerging Trends in
Materials Science and
Nanotechnology
M
Xenes attract attention as electrodes for energy storage
applications e.g. for supercapacitors due to combination of
large theoretical electrochemically active surface; high theoretical
conductivity; and hydrophilic nature of their surfaces. The problem
is that the methods of MXenes preparation described in the
literature are often multi‐stage and complicated. So the purpose
of our work is the development ofmore simple and technologically
acceptable method of MXenes preparation. In the literature the
synthesis of MAX phases (precursors for MXenes synthesis) has
been realized by different methods. So we used one stage self-
propagating high-temperature synthesis (SHS) that seems most
suitable because of this method has several advantages like
simplicity; short reaction time; cost-effective; and little demand on
external energy. For SHS commercially available Ti, Al and carbon
black powders were used. Several phases (mainly Ti
3
AlC
2
, Ti
2
AlC,
TiC, Al
2
O
3
) were among the products after SHS. Obtained products
are crushed in a roll crusher and then automatic agate mortar.
For Al etching from the MAX phase a dilute solution of HF was
used. Then delamination of MXenes in N,N-dimethylformamide
and isopropanol mixture with sonication were lasted during three
days. The content of unreacted MAX phase particles in MXene
powder can be reduced by using hydrocyclone assembly and
alcohol medium instead of water. Suspension stability of MAX
phase particles decreases rapidly while suspension of MXene
particles is fairly stable. Also alcohol medium can protect Ti
3
C
2
T
x
MXene from oxidation. Then MXene powder was washed with
water several times and to remove residual water vacuum filter
was used. Since both layered Ti
3
C
2
T
x
and Ti
2
CTx obtained can be
used as electrodes for super capacitors, SHS method is suitable
for Tix+1AlCx phase preparation. In neutral aqueous electrolyte
(1 M solution of Na
2
SO
4
) obtained electrodes demonstrated
gravimetric capacitance up to 220 Fg
–1
at charge-discharge rates
2 mVs
–1
.
Recent Publications
1. S A Sergiienko, V A Kolotygin, N D Shcherban, S M
Filonenko, D O Moskovskikh, A A Nepapushev, D I
Arkhipov and O B Tursunov (2017) Structure and
transport properties of the spark plasma sintered
barium cerate based proton conductor. Ceramics
International 43(17):14905-14914.
2. N D Shcherban, S M Filonenko, S A Sergiienko, P S
Yaremov, M A Skoryk, V G Ilyin and D Yu Murzin (2018)
Morphological features of porous silicon carbide
obtained via a carbothermal method. International
Journal of Applied Ceramic Technology 15(1):36-41.
3. N D Shcherban, S M Filonenko, R Yu Barakov, S A
Sergiienko, Kai Yu, Ivo Heinmaa, A Ivaska and D Yu
Murzin (2017) New insights in evaluation of acid
sites in micro-mesoporous zeolitelike materials using
potentiometric titration method. Applied Catalysis A:
General 543:34–42.
4. N D Shcherban, S M Filonenko, P S Yaremov, S
A Sergiienko, V G Ilyin and D Yu Murzin (2017)
Carbothermal synthesis of porous silicon carbide
using mesoporous silicas. Journal of Materials
Science 52(7):3917–3926.
5. S Sergiienko, K Moor, K Gudun, Z Elemessova and
Physicochemical properties of Ti-based MXenes obtained from SHS
synthesized MAX phases and their application for energy storage
Sergii A Sergiienko
1
, Vladislav A Kolotygin
2
and
Nataliya D Shcherban
3
1
National University of Science and Technology MISiS, Russia
2
Institute of Solid State Physics RAS, Russia
3
L V Pisarzhevskii Institute of Physical Chemistry, Ukraine
Sergii A Sergiienko et al., Nano Res Appl, Volume:4
DOI: 10.21767/2471-9838-C1-008
Figure 1:
SEM images of Ti3C2 MXene