近日，实验室文顺涛同学，何斌鸿老师提出了一项基于Co2+-配位辅助的双网络水凝胶改进力学性能和离子动力学性能的策略。改性水凝胶展现出令人瞩目的拉伸性能，其拉伸断裂率达到了1925%，拉伸强度更是高达1696 kPa。除此之外，该水凝胶在离子动力学方面表现出色，特别是在全固态超级电容器中的应用，特殊电容高达182.8Fg−1。这一超级电容器的能量密度达到34.2Whkg−1，即便在功率密度为5 kW kg−1时，依然彰显了其在实际应用中的显著潜力。研究成果发表在Carbon Letters。
This paper reports an enhanced strategy for improving the mechanical fexibility and ionic kinetic properties of a double network hydrogel based on Co2+-coordination assistance. The modifed double-network hydrogel was obtained by using acrylic acid and N, N-dimethylacrylamide as monomers, adding cross-linking agents and 3D nitrogen-doped graphenes. The tensile fracture rate of the modifed hydrogel was 1925% and its tensile strength was 1696 kPa. In addition, the hydrogel exhibited excellent ionic dynamics, and its application to an all-solid-state supercapacitor was able to achieve a specifc capacitance of up to 182.8 F g−1. The supercapacitor exhibited an energy density of 34.2 Wh kg−1, even when operating at a power density of 5 kW kg−1, highlighting its signifcant potential for practical applications.
论文题目：Co2+coordination assisted enhancement of mechanical and iodynamic properties of 3D graphene based double network hydrogels for all solid state supercapacitors
论文作者：Binhong He , Shuntao Wen , Zhiming Wen , Yan Liang , Qianxi Yang , Minjie Zhou , Wei Wang , Guo Xiang Wang .
