Lu Yanhong, Huang Yi, Zhang Mingjie, Chen Yongsheng
J Nanosci Nanotechnol. 2014 Feb;14(2):1134-44. doi: 10.1166/jnn.2014.9102.
Development of advanced functional materials for energy conversion and storage technologies play a key role in solving the problems of the rapid depletion of fossil fuels and increasingly worsened environmental pollution caused by vast fossil-fuel consumption. Supercapacitors (SCs), also known as ultracapacitors, which store energy based on either ion adsorption or fast/reversible faradaic reactions, are supposed to be a promising candidate for alternative energy storage devices due to their high rate capability, pulse power supply, long cycle life, simple principles, high dynamics of charge propagation, and low maintenance cost. The performance of supercapacitors highly depends on the properties of electrode materials. Nitrogen-doped graphene (NG)-based materials exhibit great potential for application in supercapacitors because of their unique structure and excellent intrinsic physical properties, such as large surface area with appropriate pore structure, controllable two- or three-dimensional morphology, and extraordinarily electrical conductivity. In this review, we provide a brief summary of recent research progress on NG-based electrode materials for SCs, including the various synthesis methods and the mechanisms of electrochemical performance enhancement.
开发用于能量转换和存储技术的先进功能材料对于解决化石燃料快速枯竭以及大量消耗化石燃料导致的环境污染日益恶化等问题起着关键作用。超级电容器（SCs），也称为超级电容，其基于离子吸附或快速/可逆法拉第反应来存储能量，由于其高倍率性能、脉冲电源、长循环寿命、原理简单、电荷传播动力学高以及维护成本低，被认为是替代储能设备的一个有前途的候选者。超级电容器的性能高度依赖于电极材料的性质。基于氮掺杂石墨烯（NG）的材料因其独特的结构和优异的固有物理性质，如具有适当孔结构的大表面积、可控的二维或三维形态以及极高的电导率，在超级电容器应用中展现出巨大潜力。在本综述中，我们简要总结了基于NG的超级电容器电极材料的近期研究进展，包括各种合成方法以及电化学性能增强的机制。
