Octahedral metal phase molybdenum disulfide (1T‐MoS₂) shows excellent capacitive behaviour by storing charge via double layers over individual two‐dimensional (2D) layers and through Faradaic reactions on the Mo centre because of its multiple oxidation states. In this study, we fabricate a free‐standing film based on large‐scale 1T‐MoS₂ nanosheets and use it as an electrode for a flexible supercapacitor without any additives. The resulting free‐standing electrodes have a layered structure, hydrophilicity and high electrical conductivity, which are beneficial for electrolyte accessibility and fast ions transport. The specific volumetric capacitance of this pure 1T‐MoS₂‐based electrode is up to 407.1 F ⋅ cm⁻³ (the corresponding mass and area capacitance were 26.1 F ⋅ g⁻¹ and 184.8 mF ⋅ cm⁻², respectively). The all‐solid‐state 1T‐MoS₂ based supercapacitor shows extended stability (92.8% retention after 12, 000 cycles), high flexibility (only 12% drop after bending 180 degrees for 100 cycles) and bending cycling stability (86.2% retention after in‐situ bending 1500 times).

中文翻译：

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用于独立式薄膜和柔性高性能超级电容器的附加加热增强型大型金属二硫化钼纳米片剥落

八面体金属相二硫化钼（1T-MoS ₂）通过在各个二维（2D）层上通过双层存储电荷以及通过Mo中心的法拉第反应来存储电荷，从而表现出出色的电容性能，这是由于其多种氧化态。在这项研究中，我们制造了基于大型1T-MoS ₂纳米片的自支撑膜，并将其用作不含任何添加剂的柔性超级电容器的电极。所得的独立式电极具有层状结构，亲水性和高电导率，这有利于电解质的可及性和离子的快速传输。这种基于1T-MoS ₂的纯电极的比电容高达407.1 F⋅cm ^-3（相应的质量和面积电容分别为26.1 F⋅g ^-1和184.8 mF⋅cm ^-2）。基于全固态1T-MoS ₂的超级电容器显示出扩展的稳定性（在12、000个循环后保持92.8％的保持力），高柔韧性（在100度弯曲180度后仅下降12％）和弯曲循环稳定性（在保持180°后保持86.2％原地弯曲1500次）。