Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; College of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization of Agricultural and Forest Biomass, Nanjing Forestry University, Nanjing 210037, China.
Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; College of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization of Agricultural and Forest Biomass, Nanjing Forestry University, Nanjing 210037, China.
Carbohydr Polym. 2021 Sep 1;267:118207. doi: 10.1016/j.carbpol.2021.118207. Epub 2021 May 16.
Herein, we report a simple approach to fabricate PANI/cellulose/PAAM conductive hydrogels with interpenetrating structure by in-situ polymerization of PANI into the acid tolerant cellulose/PAAM hydrogel. The obtained conductive hydrogels not only can achieve high flexibility and excellent conductivity, but also can be directly sandwiched between carbon clothes to fabricate all-in-one configured supercapacitors. Such supercapacitors show excellent electrochemical performances with a large areal capacitance of 835.0 mF/cm (corresponding to 4.175 F/cm), a high energy density of 74.22 μWh/cm and an enhanced cycling performance with 96% capacitance retention after 5000 cycles. What's more, the supercapacitors can withstand large bending/compressing deformations and wide temperature-tolerant from -60 to 80 °C. In addition, the PANI/cellulose/PAAM hydrogels can be fabricated into wearable motion sensors to monitor various human movements, such as finger bending and pressing, subtle clenching fist, swallowing and phonation in real-time. The obtained multifunctional performances may provide intriguing opportunities for practical applications.
在这里，我们报告了一种简单的方法来制备具有互穿结构的 PANI/纤维素/PAAM 导电水凝胶，方法是将 PANI 原位聚合到耐酸的纤维素/PAAM 水凝胶中。所得到的导电水凝胶不仅可以实现高柔韧性和优异的导电性，而且可以直接夹在碳布之间来制备一体式配置的超级电容器。这种超级电容器具有出色的电化学性能，面电容高达 835.0 mF/cm（相当于 4.175 F/cm），能量密度高，74.22 μWh/cm，经过 5000 次循环后，电容保持率为 96%，循环性能得到增强。此外，超级电容器可以承受大的弯曲/压缩变形和宽的温度范围，从-60°C 到 80°C。此外，PANI/纤维素/PAAM 水凝胶可以被制造为可穿戴运动传感器，以实时监测各种人体运动，如手指弯曲和按压、细微握拳、吞咽和发音。所获得的多功能性能可能为实际应用提供有趣的机会。
