期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 31, 期 13, 页码 10574-10584出版社
SPRINGER
DOI: 10.1007/s10854-020-03606-1
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资金
- Province Nature Science Foundation of Liaoning Province [20180550564]
- National Natural Science Foundation of China [21571132]
We adopted a facile method consisting of the arc discharge method combined with the in situ self-polymerization process to synthesize the cubic TiN@CN nanocapsules in this work, and we also investigated the electrochemical performance and microwave absorption properties of the TiN@CN nanocapsules in detail. The results show that the TiN@CN nanocapsules exhibit excellent electrochemical performance. The specific capacitance of the TiN@CN nanocapsules is 119 F g(-1) at 1 A g(-1), and their capacitance retention rate is 92% after 5000 cycles at the current density of 2 A g (-1). Besides, the cubic TiN@CN nanocapsules also exhibit powerful microwave absorption capacity. The reflection loss (RL) below - 20 dB is achieved in a wide frequency range of 7.2-15.5 GHz with a thickness range of 1.1-2.3 mm, and the optimal RL value is - 40.6 dB at 10.6 GHz with a relatively thin thickness of 1.6 mm. Therefore, TiN@CN nanocapsules are promising and applicable as electrode materials for supercapacitors and as microwave absorbers.
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