Province Key Laboratory of Forestry Intelligent Equipment Engineering, College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150000, China.
Key Laboratory of Bio-based Material Science & Technology, Ministry of Education, Northeast Forestry University, Harbin 150000, China.
Sensors (Basel). 2020 Jan 16;20(2):506. doi: 10.3390/s20020506.
In this paper, a kind of green triboelectric nano-generator based on natural degradable cellulose is proposed. Different kinds of regenerated cellulose composite layers are prepared by a blending doping method, and then assembled with poly(tetrafluoroethylene) (PTFE) thin films to form tribioelectric nanogenerator (TENG). The results show that the open circuit output voltage and the short circuit output current using a pure cellulose membrane is 7.925 V and 1.095 μA. After adding a certain amount of polyamide (PA6)/polyvinylidene fluoride (PVDF)/barium titanate (BaTiO), the open circuit output voltage peak and the peak short circuit output current increases by 254.43% (to 20.155 V) and 548.04% (to 6.001 μA). The surface morphology, elemental composition and functional group of different cellulose layers are characterized by Scanning Electronic Microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and tested by the electrochemical analyze. Moreover, after multiple assembly and rectification processing, the electrical output performance shows that the peak value of open-circuit output voltage and the peak value of short circuit output current increases by 132.06% and 116.13%. Within 500 s of the charge-discharge test, the single peak charge reached 3.114 V, and the two peak charges reached 3.840 V. The results demonstrate that the nano-generator based on cellulose showed good stability and reliability, and the application and development of natural biomaterials represented by cellulose are greatly promoted in miniature electronic sensing area.
本文提出了一种基于天然可降解纤维素的绿色摩擦纳米发电机。通过共混掺杂法制备了不同种类的再生纤维素复合层，然后与聚四氟乙烯（PTFE）薄膜组装形成摩擦电纳米发电机（TENG）。结果表明，纯纤维素膜的开路输出电压和短路输出电流分别为 7.925 V 和 1.095 μA。添加一定量的聚酰胺（PA6）/聚偏二氟乙烯（PVDF）/钛酸钡（BaTiO）后，开路输出电压峰值和峰值短路输出电流分别增加了 254.43%（至 20.155 V）和 548.04%（至 6.001 μA）。通过扫描电子显微镜（SEM）、傅里叶变换红外光谱（FT-IR）、X 射线衍射（XRD）对不同纤维素层的表面形貌、元素组成和官能团进行了表征，并通过电化学分析进行了测试。此外，经过多次组装和整流处理，电输出性能表明开路输出电压峰值和短路输出电流峰值分别增加了 132.06%和 116.13%。在 500 s 的充放电测试中，单个峰值电荷达到 3.114 V，两个峰值电荷达到 3.840 V。结果表明，基于纤维素的纳米发电机具有良好的稳定性和可靠性，极大地促进了以纤维素为代表的天然生物材料在微型电子传感领域的应用和发展。
