Wang Wei, Zhang Jishu, Li Tao, Wang Shuo
College of Textile & Garment Engineering, Changshu Institute of Technology Suzhou 215500 China
College of Textiles and Garments, Hebei University of Science and Technology Shijiazhuang 050018 China
RSC Adv. 2020 Nov 26;10(70):43109-43116. doi: 10.1039/d0ra06988d. eCollection 2020 Nov 23.
As an emerging energy storage material, amorphous Co-Ni-B alloy was firstly introduced to construct the flexible supercapacitor electrode. To ensure the high electrochemical property, amorphous Co-Ni-B alloy and RGO sheets were combined to form the three-dimensional hierarchical structure on the surface of the cotton fabric, which was beneficial to enhance the electrochemical property. Notably, the preparation conditions of this amorphous Co-Ni-B/RGO/fabric electrode were facile and mild with room temperature and atmospheric pressure, thus avoiding serious damage to the textile fabric because of high temperature and harsh chemical reactions of most preparation methods. This flexible electrode exhibited an optimum specific capacitance of 313.9 F g at 5 mV s and good cycling stability with specific capacitance retention of 85.0% after 3000 cycles. Such special architecture bestowed this electrode with nice electrochemical property, in addition to great promising application in the supercapacitor field.
作为一种新兴的储能材料，非晶态Co-Ni-B合金首次被引入用于构建柔性超级电容器电极。为确保高电化学性能，非晶态Co-Ni-B合金与氧化石墨烯片相结合，在棉织物表面形成三维分层结构，这有利于提高电化学性能。值得注意的是，这种非晶态Co-Ni-B/氧化石墨烯/织物电极的制备条件简便温和，在室温及大气压下即可进行，从而避免了大多数制备方法因高温和苛刻化学反应对纺织织物造成的严重损坏。这种柔性电极在5 mV s时表现出313.9 F g的最佳比电容，并具有良好的循环稳定性，在3000次循环后比电容保持率为85.0%。这种特殊结构赋予了该电极优异的电化学性能，此外在超级电容器领域还具有巨大的应用前景。
