Enhanced reversible Li-ion storage in Si@Ti3C2 MXene nanocomposite

Kong, Fanyu; He, Xiaodong; Liu, Qianqian; Qi, Xudong; Sun, Dongsong; Zheng, Yongting; Wang, Rongguo; Bai, Yinjuan

doi:10.1016/j.elecom.2018.10.003

Cited by 69 publications

(42 citation statements)

References 32 publications

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“…10 −14 –10 −13 cm 2 s −1 ), and a continually growing SEI which both degrades the electrode and consumes electrolyte over a short number of cycles . The use of MXenes to overcome these issues has seen a surge of interest in the last year (Table ), with titanium carbides being able to act as a multifunctional binder and reinforcement to silicon carbides, and viscous MXene inks being able to provide high Si mass loading to thick film electrodes . The first experimental example of a Si‐MXene electrode was published by Kong et al .…”

Section: Li‐ion Batteriesmentioning

confidence: 99%

“…The first experimental example of a Si‐MXene electrode was published by Kong et al . in December 2018 . Si‐MXene composite electrodes fabricated by filtering a mixed colloid of Ti 3 C 2 T X and commercial Si nanoparticles (typically 20–60 nm in diameter), such as those produced by Kong, are easy to prepare and show considerable improvement upon Si or Ti 3 C 2 T X alone .…”

Section: Li‐ion Batteriesmentioning

confidence: 99%

“…in December 2018 . Si‐MXene composite electrodes fabricated by filtering a mixed colloid of Ti 3 C 2 T X and commercial Si nanoparticles (typically 20–60 nm in diameter), such as those produced by Kong, are easy to prepare and show considerable improvement upon Si or Ti 3 C 2 T X alone . For example, Li et al produced a 1 : 1 Ti 3 C 2 T X : Si composite electrode whose capacity inexplicably increased beyond the 200 th cycle as it developed a progressively more capacitive character, and they were able to show that the MXene disrupted the unfavourable crystalline‐amorphous Si core‐shell structure typically seen in charge‐cycled Si nanoparticle electrodes .…”

Section: Li‐ion Batteriesmentioning

confidence: 99%

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MXene‐Based Anodes for Metal‐Ion Batteries

Greaves

Barg

Bissett

2020

Batteries & Supercaps

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2D transition metal carbides and nitrides (MXenes) are electrochemically active materials capable of exhibiting pseudocapacitance. Multilayer MXenes are similar to graphite, but with larger interlayer spacing and surface functionalities which allow them to readily disperse in water and undergo a range of reactions without compromising their electrical conductivity. The large interlayer spacing enables MXenes to readily intercalate large ions, and form composites with materials such as graphene, metal oxides, transition metal dichalcogenides and silicon, with which they make electrodes able to deliver exceptional capacities at high power rates over thousands of cycles. Research into MXenes for energy storage has grown exponentially since 2011, and it is now necessary, especially for readers new to the field, to review progress made in more specific areas. This critical review will therefore analyse the progress made in developing MXene‐based batteries, focusing solely on anodes developed for metal‐ion batteries such as Li‐ion, Na‐ion and K‐ion.

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Section: Li‐ion Batteriesmentioning

confidence: 99%

Section: Li‐ion Batteriesmentioning

confidence: 99%

Section: Li‐ion Batteriesmentioning

confidence: 99%

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MXene‐Based Anodes for Metal‐Ion Batteries

Greaves

Barg

Bissett

2020

Batteries & Supercaps

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“…Kong et al first reported Si@Ti 3 C 2 nanocomposites anodes prepared via ultrasonic mixing of Si powder and Ti 3 C 2 , only showing a capacity of 188 mAh g −1 and poor cycling stability. The main possible problem is that this deposition process of Si is less controllable, and it is hard to form a solid contact between Si nanoparticles and Ti 3 C 2 MXene.…”

Section: Introductionmentioning

confidence: 99%

Low‐Temperature Reduction Strategy Synthesized Si/Ti₃C₂ MXene Composite Anodes for High‐Performance Li‐Ion Batteries

Hui

Zhao

Zhang

et al. 2019

Advanced Energy Materials

276

219

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Silicon is attracting enormous attention due to its theoretical capacity of 4200 mAh g−1 as an anode for Li‐ion batteries (LIBs). It is of fundamental importance and challenge to develop low‐temperature reaction route to controllably synthesize Si/Ti3C2 MXene LIBs anodes. Herein, a novel and efficient strategy integrating in situ orthosilicate hydrolysis and a low‐temperature reduction process to synthesize Si/Ti3C2 MXene composites is reported. The hydrolysis of tetraethyl orthosilicate leads to homogenous nucleation and growth of SiO2 nanoparticles on the surface of Ti3C2 MXene. Subsequently, SiO2 nanoparticles are reduced to Si via a low‐temperature (200 °C) reduction route. Importantly, Ti3C2 MXene not only provides fast transfer channels for Li+ and electrons, but also relieves volume expansion of Si during cycling. Moreover, the characteristics of excellent pseudocapacitive performance and high conductivity of Ti3C2 MXene can synergistically contribute to the enhancement of energy storage performance. As expected, Ti3C2/Si anode exhibits an outstanding specific capacity of 1849 mAh g−1 at 100 mA g−1, even retaining 956 mAh g−1 at 1 A g−1. The low‐temperature synthetic route to Si/Ti3C2 MXene electrodes and involved battery‐capacitive dual‐model energy storage mechanism has potential in the design of novel high‐performance electrodes for energy storage devices.

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“…As shown in Fig. 5b, [56], and Si@Ti 3 C 2 [57] etc. Electrochemical impedance spectroscopy was employed to compare the reaction kinetics of the SnO 2 QDs/MXene-52 and the bare SnO 2 QDs.…”

mentioning

confidence: 74%

Electrostatic Self-assembly of 0D–2D SnO2 Quantum Dots/Ti3C2Tx MXene Hybrids as Anode for Lithium-Ion Batteries

et al. 2019

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HIGHLIGHTS • 0D-2D SnO 2 quantum dots/MXene (SnO 2 QDs/MXene) hybrids were synthesized by electrostatic self-assembly. • MXene not only provides efficient pathways for fast transport of electrons and Li ions, but also buffers the volume change of SnO 2 during charge/discharge process. • The 0D-2D SnO 2 QDs/MXene hybrids deliver high capacity, excellent cycle and rate performances as anode of lithium-ion batteries. ABSTRACT MXenes, a new family of two-dimensional (2D) materials with excellent electronic conductivity and hydrophilicity, have shown distinctive advantages as a highly conductive matrix material for lithium-ion battery anodes. Herein, a facile electrostatic self-assembly of SnO 2 quantum dots (QDs) on Ti 3 C 2 T x MXene sheets is proposed. The as-prepared SnO 2 /MXene hybrids have a unique 0D-2D structure, in which the 0D SnO 2 QDs (~ 4.7 nm) are uniformly distributed over 2D Ti 3 C 2 T x MXene sheets with controllable loading amount. The SnO 2 QDs serve as a high capacity provider and the "spacer" to prevent the MXene sheets from restacking; the highly conductive Ti 3 C 2 T x MXene can not only provide efficient pathways for fast transport of electrons and Li ions, but also buffer the volume change of SnO 2 during lithiation/delithiation by confining SnO 2 QDs between the MXene nanosheets. Therefore, the 0D-2D SnO 2 QDs/MXene hybrids deliver superior lithium storage properties with high capacity (887.4 mAh g −1 at 50 mA g −1), stable cycle performance (659.8 mAh g −1 at 100 mA g −1 after 100 cycles with a capacity retention of 91%) and excellent rate performance (364 mAh g −1 at 3 A g −1), making it a promising anode material for lithium-ion batteries.

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Enhanced reversible Li-ion storage in Si@Ti3C2 MXene nanocomposite

Cited by 69 publications

References 32 publications

MXene‐Based Anodes for Metal‐Ion Batteries

MXene‐Based Anodes for Metal‐Ion Batteries

Low‐Temperature Reduction Strategy Synthesized Si/Ti₃C₂ MXene Composite Anodes for High‐Performance Li‐Ion Batteries

Electrostatic Self-assembly of 0D–2D SnO2 Quantum Dots/Ti3C2Tx MXene Hybrids as Anode for Lithium-Ion Batteries

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Enhanced reversible Li-ion storage in Si@Ti3C2 MXene nanocomposite

Cited by 69 publications

References 32 publications

MXene‐Based Anodes for Metal‐Ion Batteries

MXene‐Based Anodes for Metal‐Ion Batteries

Low‐Temperature Reduction Strategy Synthesized Si/Ti3C2 MXene Composite Anodes for High‐Performance Li‐Ion Batteries

Electrostatic Self-assembly of 0D–2D SnO2 Quantum Dots/Ti3C2Tx MXene Hybrids as Anode for Lithium-Ion Batteries

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Low‐Temperature Reduction Strategy Synthesized Si/Ti₃C₂ MXene Composite Anodes for High‐Performance Li‐Ion Batteries