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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >Three-dimensional nickel nitride (Ni3N) nanosheets: free standing and flexible electrodes for lithium ion batteries and supercapacitors
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Three-dimensional nickel nitride (Ni3N) nanosheets: free standing and flexible electrodes for lithium ion batteries and supercapacitors

机译：三维氮化镍（Ni3N）纳米片：用于锂离子电池和超级电容器的独立式柔性电极

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摘要

The search for suitable electrode materials for electrochemical storage devices has led to the development of new electrode materials. Metal nitrides are regarded as an attractive and promising class of electrode materials for high-performance energy storage devices because they exhibit excellent electrical conductivity over the corresponding metal oxides and have considerably higher capacity than carbon based materials. Moreover, designing of different electrode nanostructures has been demonstrated to effectively improve the storage performance of energy storage devices. Hence, three dimensional (3D) nickel nitride (Ni3N) nanosheets were successfully fabricated on a carbon cloth by a simple hydrothermal and post annealing process that can be used directly as electrode storage materials for flexible lithium ion batteries and supercapacitors. Due to the electrode, architectures that demonstrated fast electron transport via direct connection to the flexible substrate and facile ion diffusion paths that ensured the participation of every nanosheet in the ultrafast electrochemical reaction, the 3D flexible Ni3N/carbon composites cloth exhibited a high capacity or capacitance and possessed an excellent rate performance.
机译：寻找适合用于电化学存储设备的电极材料导致了新电极材料的开发。金属氮化物被认为是用于高性能能量存储设备的有吸引力的和有前途的一类电极材料，因为它们比相应的金属氧化物表现出优异的导电性，并且比碳基材料具有更高的容量。而且，已经证明设计不同的电极纳米结构可以有效地改善能量存储装置的存储性能。因此，通过简单的水热和后退火工艺成功地在碳布上成功地制作了三维（3D）氮化镍（Ni3N）纳米片，可以直接用作柔性锂离子电池和超级电容器的电极存储材料。由于电极，通过直接连接到挠性基板表现出快速电子传输的体系结构以及确保每个纳米片参与超快电化学反应的便捷离子扩散路径，这种3D挠性Ni3N /碳复合材料布表现出高容量或电容性并具有出色的速率性能。

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