la8b01953_si_001.pdf (920.51 kB)
Effect of Synthesis on Performance of MXene/Iron Oxide Anode Material for Lithium-Ion Batteries
journal contribution
posted on 2018-08-31, 00:00 authored by Adnan Ali, Kanit Hantanasirisakul, Ahmed Abdala, Patrick Urbankowski, Meng-Qiang Zhao, Babak Anasori, Yury Gogotsi, Brahim Aïssa, Khaled A. MahmoudTwo-dimensional
heterostructures, such as Fe2O3/MXene nanoparticles,
can be attractive anode materials for lithium-ion
batteries (LIBs) due to the synergy between high lithium-storage capacity
of Fe2O3 and stable cyclability and high conductivity
provided by MXene. Here, we improved the storage performance of Ti3C2Tx (MXene)/Fe2O3 nanocomposite by confining Fe2O3 nanoparticles into Ti3C2Tx nanosheets with different mixing ratios using a
facile and scalable dry ball-milling process. Composites of Ti3C2Tx-25 wt % Fe2O3 and Ti3C2Tx-50 wt % Fe2O3 synthesized
by ball-milling resulted in uniform distribution of Fe2O3 nanoparticles on Ti3C2Tx nanosheets with minimum oxidation of MXene
as compared to composites prepared by hydrothermal or wet sonication.
Moreover, the composites demonstrated minimum restacking of the nanosheets
and higher specific surface area. Among all studied composites, the
Ti3C2Tx-50 wt %
Fe2O3 showed the highest reversible specific
capacity of ∼270 mAh g–1 at 1C (∼203
mAh g–1 based on the composite) and rate performance
of 100 mAh g–1 at 10C. This can open the door for
synthesizing stable and high-performance MXene/transition metal oxide
composites with significantly enhanced electrochemical performance
for LIB applications.
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Keywords
surface arealithium-storage capacityMXeneFe 2 O 3 nanoparticlesball-milling processanode materialsLithium-Ion Batteries Two-dimensional heterostructureswt10 CTi 3 C 2 T x nanosheetsstorage performancemAhcompositeLIB applicationselectrochemical performancerate performanceFe 2 O 3uniform distributionTi 3 C 2 T xlithium-ion batteries
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