What question did this study set out to answer?

To investigate the influence of unitary, binary, and ternary halogen surface terminations on the electrochemical behavior and capacity of Ti3C2 MXene cathodes in aqueous zinc ion batteries.

January 8, 2021ACS NanoOpen Access

Halogenated Ti 3 C 2 MXenes with Electrochemically Active Terminals for High-Performance Zinc Ion Batteries

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Authors

MLMian LiChongqing University of Science and Technology XLXinliang LiSinopec (China)GQGui-Fang QinHezhou University

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Implication

Experimental study demonstrates enhanced capacity from halogen-terminated Ti3C2 MXenes in aqueous zinc ion batteries, highlighting surface engineering for energy storage.

Key Points

To investigate the influence of unitary, binary, and ternary halogen surface terminations on the electrochemical behavior and capacity of Ti3C2 MXene cathodes in aqueous zinc ion batteries.
Synthesized Ti3C2 MXenes with varying halogen terminations (−Cl, −Br, −I, −BrI, and −ClBrI) via a Lewis-acidic-melt etching process.
Tested the synthesized halogenated MXenes as cathode materials in aqueous zinc ion batteries to measure discharge plateaus, capacity, and energy density.
Bromine- and iodine-terminated MXenes achieved single discharge plateaus with capacities of 97.6 mAh·g⁻¹ (Ti3C2Br2) and 135 mAh·g⁻¹ (Ti3C2I2).
Binary and ternary halogen terminals exhibited dual discharge platforms, yielding capacities of 117.2 mAh·g⁻¹ for Ti3C2(BrI) and 106.7 mAh·g⁻¹ for Ti3C2(ClBrI).
Ti3C2Cl2 and Ti3C2(OF) showed no distinct discharge platforms and delivered only approximately 50% of the capacity and energy density observed in Ti3C2Br2.

Cite This Study

Li et al. (2021) studied this question.

synapsesocial.com/papers/6aa2bbb981c14275e1240eb4 https://doi.org/10.1021/acsnano.0c07972

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Implication

Experimental study demonstrates enhanced capacity from halogen-terminated Ti3C2 MXenes in aqueous zinc ion batteries, highlighting surface engineering for energy storage.

Halogenated Ti 3 C 2 MXenes with Electrochemically Active Terminals for High-Performance Zinc Ion Batteries

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Implication

Key Points

Cite This Study

Halogenated Ti 3 C 2 MXenes with Electrochemically Active Terminals for High-Performance Zinc Ion Batteries

Discussion

Member takes

Implication

Key Points

Cite This Study

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