Triboelectric-Generator-Driven Pulse Electrodeposition for Micropatterning
Triboelectric-Generator-Driven Pulse Electrodeposition for Micropatterning
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DOI：
10.1021/nl302560k
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发表时间：
2012-09-01
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;Pan, Caofeng;Wang, Zhong Lin
通过将环境能量转化为电能，能量收集至少能够抵消、甚至取代小型便携式电子产品对电池等传统电源的依赖。在这里，我们展示了一种新的、简单的、成本极低的发电机，用于有效地收集通常以振动和随机位移/变形的形式存在的机械能。由于接触充电和静电感应的耦合，两个聚合物薄膜之间的接触和分离循环过程实现了发电。为了理解所提出的机制，开发了一个详细的理论。在最大开路电压为110V时，瞬时电功率密度高达31.2 mW/cm(3)。并成功地将该电源作为脉冲电沉积微纳米银结构的直接电源。阴极电流效率高达86.6%。这项工作不仅提供了一种制造简单、发电量大、坚固耐用、成本极低的新型发电机，而且还将能量收集技术的应用扩展到电化学领域，进一步的利用包括但不限于污染物降解、防腐和水分解。
By converting ambient energy into electricity, energy harvesting is capable of at least offsetting, or even replacing, the reliance of small portable electronics on traditional power supplies, such as batteries. Here we demonstrate a novel and simple generator with extremely low cost for efficiently harvesting mechanical energy that is typically present in the form of vibrations and random displacements/deformation. Owing to the coupling of contact charging and electrostatic induction, electric generation was achieved with a cycled process of contact and separation between two polymer films. A detailed theory is developed for understanding the proposed mechanism. The instantaneous electric power density reached as high as 31.2 mW/cm(3) at a maximum open circuit voltage of 110 V. Furthermore, the generator was successfully used without electric storage as a direct power source for pulse electrodeposition (PED) of micro/nanocrystalline silver structure. The cathodic current efficiency reached up to 86.6%. Not only does this work present a new type of generator that is featured by simple fabrication, large electric output, excellent robustness, and extremely low cost, but also extends the application of energy-harvesting technology to the field of electrochemistry with further utilizations including, but not limited to, pollutant degradation, corrosion protection, and water splitting.