Xie Dong, Xia Xinhui, Wang Yadong, Wang Donghuang, Zhong Yu, Tang Wangjia, Wang Xiuli, Tu Jiangping
State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
School of Engineering, Nanyang Polytechnic, 569830, Singapore.
Chemistry. 2016 Aug 8;22(33):11617-23. doi: 10.1002/chem.201601478. Epub 2016 Jun 29.
Rational design and synthesis of advanced anode materials are extremely important for high-performance lithium-ion and sodium-ion batteries. Herein, a simple one-step hydrothermal method is developed for fabrication of N-C@MoS2 microspheres with the help of polyurethane as carbon and nitrogen sources. The MoS2 microspheres are composed of MoS2 nanoflakes, which are wrapped by an N-doped carbon layer. Owing to its unique structural features, the N-C@MoS2 microspheres exhibit greatly enhanced lithium- and sodium-storage performances including a high specific capacity, high rate capability, and excellent capacity retention. Additionally, the developed polyurethane-assisted hydrothermal method could be useful for the construction of many other high-capacity metal oxide/sulfide composite electrode materials for energy storage.
合理设计和合成先进的阳极材料对于高性能锂离子和钠离子电池极为重要。在此，借助聚氨酯作为碳源和氮源，开发了一种简单的一步水热法来制备N-C@MoS₂微球。MoS₂微球由MoS₂纳米片组成，其被氮掺杂碳层包裹。由于其独特的结构特征，N-C@MoS₂微球表现出大大增强的锂和钠存储性能，包括高比容量、高倍率性能和优异的容量保持率。此外，所开发的聚氨酯辅助水热法可用于构建许多其他用于储能的高容量金属氧化物/硫化物复合电极材料。
