In situ synthesis of CNTs@Ti3C2 hybrid structures by microwave irradiation for high-performance anodes in lithium ion batteries
In situ synthesis of CNTs@Ti3C2 hybrid structures by microwave irradiation for high-performance anodes in lithium ion batteries
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微波辐照原位合成CNTs@Ti3C2杂化结构用于锂离子电池高性能负极
DOI：
10.1039/c7ta10394h
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发表时间：
2018-02
影响因子：
11.9
通讯作者：
Sun Z M
中科院分区：
文献类型：
--
作者：
Zheng W;Zhang P;Chen J;Tian W B;Zhang Y M;Sun Z M
为了稳定MXenes的层状结构，在常温下用简易的微波辐射方法成功地原位生长了碳纳米管。以Ti3C2、Ti2C和V2C等MXenes为基的复合材料呈杂化结构，多壁碳纳米管均匀分布在层状MXene网络结构上。由于其独特的结构特点，这些复合材料在锂离子电池负极材料中表现出优异的电化学性能。碳纳米管@Ti3C2复合材料的可逆容量分别为430 mA g−1(1 A g−1)和175 mA g−1(10 A g−1(31.25℃))，不仅优于原始的Ti3C2(分别为99 mA g−1和45 mA g−1)，而且优于最近报道的MXEn复合材料。这种令人印象深刻的电化学性能归功于连接的碳纳米管桥、大容量金属/金属氧化物和良好的导电MXene基质的协同作用。这种碳纳米管的原位生长策略在调节纳米材料的结构和性能方面显示出巨大的潜力。
To stabilize the layer structures of MXenes, carbon nanotubes (CNTs) have been successfully grown in situ by a facile microwave irradiation method under ambient conditions. The synthesized composites based on various MXenes including Ti3C2, Ti2C and V2C exhibited hybrid structures with uniformly distributed multi-walled CNTs anchored on the layer structured MXene networks. Benefiting from the unique structural features, these composites exhibit excellent electrochemical properties as anode materials in lithium ion batteries. The CNTs@Ti3C2 composite exhibits high reversible capacities of 430 mA h g−1 at 1 A g−1 and 175 mA h g−1 at 10 A g−1 (31.25 C), and is not only better than the pristine Ti3C2 (99 mA h g−1 and 45 mA h g−1, respectively), but also superior to the recently reported MXene composites. The impressive electrochemical performance is attributed to the synergetic effects of the connective CNT bridges, large-capacity metal/metal oxides and the fine conductive MXene matrix. This in situ growth strategy of CNTs shows great potential in modulating the structure and properties of nanomaterials for advanced applications.
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影响因子：
10.9
作者：
Bae, Seok-Hu;Karthikeyan, Kaliyappan;Oh, Il-Kwon
通讯作者：
Oh, Il-Kwon
影响因子：
4
作者：
M. Shigeno;S. Morohashi
通讯作者：
M. Shigeno;S. Morohashi
影响因子：
4
作者：
Ren, Chang E.;Zhao, Meng-Qiang;Gogotsi, Yury
通讯作者：
Gogotsi, Yury
影响因子：
17.6
作者：
Xie, Xiuqiang;Zhao, Meng-Qiang;Gogotsi, Yury
通讯作者：
Gogotsi, Yury
DOI：
--
发表时间：
2011
期刊：
Materials review
影响因子：
--
作者：
Fang Guangxin
通讯作者：
Fang Guangxin