Cui Siwen, Zheng Youbin, Liang Jun, Wang Daoai
State Key Laboratory of Solid Lubrication , Lanzhou Institute of Chemical Physics , Chinese Academy of Sciences , Lanzhou 730000 , China . Email:
University of Chinese Academy of Sciences , Beijing , 100049 , China.
Chem Sci. 2016 Oct 1;7(10):6477-6483. doi: 10.1039/c6sc02562e. Epub 2016 Jun 27.
As a new type of energy harvesting device, the triboelectric nanogenerator (TENG) can convert almost all kinds of mechanical energy into electricity based on the coupling of triboelectrification and electrostatic induction. Here, a novel TENG is constructed with a conducting polymer polypyrrole nanowire (PPy NW) electrode, which is prepared by an electrochemical polymerization method with anodic aluminum oxide (AAO) as the template. The PPy NW-based TENG shows high output performance with a maximum short circuit current density of 23.4 mA m and output voltage of 351 V, which can light 372 commercial red LEDs. Moreover, a self-powered anticorrosion system powered by the PPy NW-based TENG is designed, which can provide extra electrons to inject into the surface of the protected metals, forming effective impressed current cathodic protection by harvesting mechanical energy or wind energy. This smart device has potential applications for protecting metals from corrosion in daily life, industrial production and ocean exploration by harvesting the energies in the ambient environment.
作为一种新型的能量收集装置，摩擦电纳米发电机（TENG）能够基于摩擦起电和静电感应的耦合，将几乎所有种类的机械能转化为电能。在此，采用导电聚合物聚吡咯纳米线（PPy NW）电极构建了一种新型TENG，该电极通过以阳极氧化铝（AAO）为模板的电化学聚合法制备。基于PPy NW的TENG展现出高输出性能，最大短路电流密度为23.4 mA/m，输出电压为351 V，可点亮372个商用红色发光二极管。此外，设计了一种由基于PPy NW的TENG供电的自供电防腐系统，该系统能够提供额外电子注入到被保护金属表面，通过收集机械能或风能形成有效的外加电流阴极保护。这种智能装置通过收集环境中的能量，在日常生活、工业生产和海洋探索中具有保护金属免受腐蚀的潜在应用。
