最新超级电容器文章——Nature Communications?Two-dimensional vanadyl phosphate ultrathin nanosheets for high energy density and flexible pseudocapacitorsChangzheng Wu, Xiuli Lu, Lele Peng, Kun Xu, Xu Peng, Jianliu Huang, Guihua Yu*, Yi Xie**Materials Science & Engineering program and Mechanical Engineering Department, The University of Texas at Austin, Austin, Texas 78712, USA*Hefei National Laboratory of Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, ChinaTwo-dimensional materials have been an ideal material platform for constructing flexible ultrathin-film supercapacitors, offering great advantages of flexibility, ultra-thinness and even transparency. Exploring new two-dimensional pseudocapacitive materials with high electrochemical activity is needed to achieve flexible ultrathin-film supercapacitors with higher energy densities. Here we report an inorganic graphene analogue, α1-vanadyl phosphate ultrathin nanosheets with less than six atomic layers, as a promising material to construct a flexible ultrathin-film pseudocapacitor in all-solid-state. The material exhibits a high potential plateau of ~ 1.0?V in aqueous solutions, approaching the electrochemical potential window of water (1.23?V). The as-established flexible supercapacitor achieves a high redox potential (1.0?V) and a high areal capacitance of 8,360.5?μF?cm?2, leading to a high energy density of 1.7?mWh?cm?2 and a power density of 5.2?mW?cm?2.http://www.nature.com/ncomms/201 ... ull/ncomms3431.htmlScheme.png查看更多6个回答 . 10人已关注