Vibration-to-electric energy conversion with porous graphene oxide-nickel electrode
Vibration-to-electric energy conversion with porous graphene oxide-nickel electrode
复制标题
利用多孔氧化石墨烯-镍电极将振动能转换为电能
DOI：
10.1016/j.jpowsour.2017.09.074
复制
发表时间：
2017-11
影响因子：
9.2
通讯作者：
Xi Chen
中科院分区：
文献类型：
--
作者：
Chen Zhang;Fei Dang;Youlong Chen;Yuan Yan;Yilun Liu;Xi Chen
在这项工作中，我们提出了一种新的方法，利用多孔氧化石墨烯镍（pGO-Ni）电极和离子溶液的振动能量转换为电能。当通过振动致动时，离子溶液反复流过pGO-Ni电极，这改变了pGO-Ni电极和离子溶液之间的界面处的双电层。因此，观察到浸入静态离子溶液中的工作电极和参比电极之间的显著电势差。输出电压首先随着振动频率增加，然后随着振动频率增加到15 Hz逐渐接近饱和值70.12 mV。通过在能量转换系统上连接一个3 kΩ电阻，研究了能量转换系统的放电行为，结果表明能量转换系统的输出电压和电流均呈指数衰减。该能量转换系统类似于超级电容器，通过放电实验推导出其有效电容、内阻和能量转换效率。该工作提供了一种新的振动-电能转换机制，可能在流量传感器和回收废弃机械能或振动能方面具有潜在的应用前景。
In this work, we present a new approach of converting vibration energy to electric energy using porous graphene oxide-nickel (pGO-Ni) electrode and ionic solution. When actuated by vibration, the ionic solution repeatedly flows across the pGO-Ni electrode which changes the electric double layer at the interface between the pGO-Ni electrode and ionic solution. Therefore, a significant potential difference between the working electrode and the reference electrode immersed into the static ionic solution is observed. The output voltage first increases with the vibration frequency and then gradually approaches to a saturated value of 70.12 mV as the vibration frequency increases to 15 Hz. By connecting a 3 kΩ resistance to the energy conversion system, the discharging behaviors of the energy conversion system are studied, which shows an exponential decay of the output voltage and current. The proposed energy conversion system is analogous to a supercapacitor, whose effective capacitance, internal resistance and energy conversion efficiency are deduced based on the discharging experiments. The work provides a new vibration-to-electric energy conversion mechanism, which may inspire potential applications in flow sensor and harvesting waste mechanical or vibration energy.
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影响因子：
3.2
作者：
Liu, Jianwei;Dai, Liming;Baur, Jeff W.
通讯作者：
Baur, Jeff W.
影响因子：
2.3
作者：
Ming-Chang Lu;S. Satyanarayana;R. Karnik;A. Majumdar;Chi-Chuan Wang
通讯作者：
Ming-Chang Lu;S. Satyanarayana;R. Karnik;A. Majumdar;Chi-Chuan Wang
影响因子：
9.2
作者：
Kilsgaard, Bjorn Sjogren;Haldrup, Sofie;Bentien, Anders
通讯作者：
Bentien, Anders
平行板微通道中纳米流体的流动势和传热
DOI：
10.1016/j.colsurfa.2016.03.053
发表时间：
2016-06
期刊：
Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子：
--
作者：
Guangpu Zhao;Yongjun Jian;Fengqin Li
通讯作者：
Fengqin Li
通过限制在纳米通道中的机械驱动电解质流实现机械能到电能的转换
影响因子：
2.3
作者：
Hyuck Lim;Weiyi Lu;Yu Qiao;Xi Chen
通讯作者：
Xi Chen