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Nanoscale. 2019 Jun 17. doi: 10.1039/c9nr02103e. [Epub ahead of print]

Integrated MXene&CoFe2O4 electrodes with multi-level interfacial architectures for synergistic lithium-ion storage.

Author information

1
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China. bszhang@imr.ac.cn and Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, International Center of Future Science, Jilin University, Changchun 130012, China. weizhang@jlu.edu.cn wtzheng@jlu.edu.cn and Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
2
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China. bszhang@imr.ac.cn and Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China.
3
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China. bszhang@imr.ac.cn and Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
4
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China. bszhang@imr.ac.cn.
5
Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China.
6
Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, International Center of Future Science, Jilin University, Changchun 130012, China. weizhang@jlu.edu.cn wtzheng@jlu.edu.cn.
7
Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
8
Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, International Center of Future Science, Jilin University, Changchun 130012, China. weizhang@jlu.edu.cn wtzheng@jlu.edu.cn and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.

Abstract

Interfacial contacts within electrodes largely affect electronic transport and ion migration. Nanoscale electrode materials can achieve high reactivity, but their large interfacial contact areas lead to unavoidable impedance. Herein, a Ti3C2Tx MXene was used to construct a hybrid three-dimensional electrode material with a bilayer feature via a two-step vacuum filtration process. The introduced MXene flakes contributed to the electrode capacity, increased the electronic/ionic conductivity as a conductor and current collector, and enhanced the mechanical behaviour of the electrode by acting as a substrate. Such bilayer hybrid electrode design achieved promising cycling stability, and unlock an electrode architecture that can be applied to a wide range of two-dimensional materials.

PMID:
31206116
DOI:
10.1039/c9nr02103e

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