缺陷工程石墨烯在高能量和高功率密度超级电容器器件中的应用。
Defect-Engineered Graphene for High-Energy- and High-Power-Density Supercapacitor Devices.
机构信息
Department of Physics and Astronomy, Clemson Nanomaterials Center, COMSET, Clemson University, Clemson, SC, 29634, USA.
ABV-Indian Institute of Information Technology and Management, Gwalior, 474010, Madhya Pradesh, India.
出版信息
Adv Mater. 2016 Sep;28(33):7185-92. doi: 10.1002/adma.201602028. Epub 2016 Jun 14.
Defects are often written off as performance limiters. Contrary to this notion, it is shown that controlling the defect configuration in graphene is critical to overcome a fundamental limitation posed by quantum capacitance and opens new channels for ion diffusion. Defect-engineered graphene flexible pouch capacitors with energy densities of 500% higher than the state-of-the-art supercapacitors are demonstrated.
缺陷通常被视为性能限制因素而被忽略。与这一观点相反，研究表明，控制石墨烯中的缺陷结构对于克服量子电容带来的基本限制至关重要，并为离子扩散开辟了新的途径。研究人员展示了具有缺陷工程的石墨烯柔性袋式电容器，其能量密度比最先进的超级电容器高出 500%。
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