摘要
摩擦纳米发电机(TENG)作为一种新型可持续的能量收集设备,具有自供电、高输出、低成本、灵活性和轻量化等优点.然而,传统TENG的电极材料为金属薄膜、碳片和液态金属等,存在可拉伸性差、导电性差且在低温无法工作等缺点.文中将氯化锌(ZnCl2)、磺基甜菜碱(SBMA)、纳米纤维素(CNC)和柠檬酸(CA)引入聚丙烯酸(AA)基体中,制备了具有优异力学性能(拉伸强度2.16 MPa、断裂伸长率382％)、抗疲劳性、导电性能(9.3 mS/cm)、抗冻性能(-75 ℃)和保水性能的离子水凝胶材料.基于该离子水凝胶所制备的TENG具有良好的可拉伸性、抗冻性(-50 ℃)和稳定的输出电压(60 V),能够将人体运动产生的机械能转化为电能,并成功点亮了 39个LED灯.因此该水凝胶基TENG在能量收集领域展示出巨大的发展潜力,具有广阔的应用前景.
Abstract
Triboelectric nanogenerators(TENG),as a new type of sustainable energy harvesting device,have the advantages of self-power,high output,low cost,flexibility and light weight.However,the electrode materials of traditional TENG,such as metal films,carbon sheets and liquid metals,have the disadvantages of poor stretchability,poor conductivity and inability to work at low temperatures.In this paper,conductive ZCC hydrogel materials with excellent mechanical properties(tensile strength of 2.16 MPa,elongation at break of 382％),fatigue resistance,electrical conductivity(9.3 mS/cm),anti-freezing properties(-75 ℃)and water retention properties were prepared by introducing zinc chloride(ZnCl2),sulfobetaine(SBMA),nanocellulose(CNC),and citric acid(CA)into a polyacrylic acid(AA)polymer.The TENG prepared based on this conductive hydrogel has good stretchability,anti-freezing properties(-50 ℃)and stable output voltage(60 V),which can convert the mechanical energy generated by human movement into electrical energy and successfully light up 39 LEDs.Therefore,this hydrogel-based TENG shows great potential for development in the field of energy harvesting and has a broad application prospect.
基金项目
国家自然科学基金资助项目(31770630)
中国博士后面上基金项目(2022M721333)
齐鲁工业大学科教产融合培优基金项目(2023PYI007)
NETL
NSTL
万方数据