Toward Large-Scale Energy Harvesting by a Nanoparticle-Enhanced Triboelectric Nanogenerator
Toward Large-Scale Energy Harvesting by a Nanoparticle-Enhanced Triboelectric Nanogenerator
复制标题
DOI：
10.1021/nl4001053
复制
发表时间：
2013-02-01
期刊：
影响因子：
10.8
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Zhu, Guang;Lin, Zong-Hong;Wang, Zhong Lin
本文描述了一种简单、经济、可扩展的方法来制造具有超高电输出的摩擦纳米发电机（NG）。一个比手掌还小的NG，可以由周围常见的机械能（如人的脚步声）触发，产生最大2 mA的短路电流，向外部负载提供1.2 W的瞬时输出功率。在类似于1200v的开路电压下，输出功率对应的面积功率密度为313w /m(2)，体积功率密度为54268w /m(3)。能量转换效率达到14.9%。该电源能够瞬间点亮多达600个商用多色LED灯泡。创纪录的高功率输出归因于优化的结构，适当的材料选择和纳米级表面改性。这项工作证明了利用NG来收集大规模机械能的实用性，比如脚步声、滚动的车轮、风力和海浪。
This article describes a simple, cost-effective, and scalable approach to fabricate a triboelectric nanogenerator (NG) with ultrahigh electric output. Triggered by commonly available ambient mechanical energy such as human footfalls, a NG with size smaller than a human palm can generate maximum short-circuit current of 2 mA, delivering instantaneous power output of 1.2 W to external load. The power output corresponds to an area power density of 313 W/m(2) and a volume power density of 54 268 W/m(3) at an open-circuit voltage of similar to 1200 V. An energy conversion efficiency of 14.9% has been achieved. The power was capable of instantaneously lighting up as many as 600 multicolor commercial LED bulbs. The record high power output for the NG is attributed to optimized structure, proper materials selection and nanoscale surface modification. This work demonstrated the practicability of using NG to harvest large-scale mechanical energy, such as footsteps, rolling wheels, wind power, and ocean waves.