Abstract
Abstract
Combining the new two-dimensional conductive MXene with transition metal oxide to build composite structure is a promising path to improve the conductivity of metal oxide. However, a critical challenge still remains in how to achieve a good combination of MXene and metal oxide. Herein, we develop a facile hydrothermal route to synthesize the MnO2/Ti3C2T
x
composite electrode for supercapacitors by synergistically coupling MnO2 nanowires with Ti3C2T
x
MXene nanoflakes. Compared with the pure MnO2 electrode, the morphology of the MnO2/Ti3C2T
x
composite electrode changes from nanowires to nanoflowers. Moreover, the overall conductivity and electrochemical performance of the composite electrode are greatly improved due to an addition of Ti3C2T
x
MXene. The specific capacitance of the MnO2/Ti3C2T
x
composite electrode achieves 210.8 F·g−1 at a scan rate of 2 mV·s−1, while that of the pure MnO2 electrode is only 55.2 F·g−1. Furthermore, the specific capacitance of the MnO2/Ti3C2T
x
composite electrode still can remain at 97.2% even after 10 000 charge–discharge cycles, revealing an excellent cycle stability. The synthesis strategy of this work can pave the way for the research and practical application of the electrode materials for supercapacitors.
Funder
The Key Science and Technology Developing Project of Shaanxi Province
The Key Project of the Natural Science Foundation of Shandong Province
Subject
Electrical and Electronic Engineering,Mechanical Engineering,Mechanics of Materials,General Materials Science,General Chemistry,Bioengineering
Cited by
3 articles.
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