Highly efficient moisture-enabled electricity generation from graphene oxide frameworks
Highly efficient moisture-enabled electricity generation from graphene oxide frameworks
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DOI：
10.1039/c5ee03701h
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发表时间：
2016-01-01
影响因子：
32.5
通讯作者：
Qu, Liangti
中科院分区：
文献类型：
--
作者：
Zhao, Fei;Liang, Yuan;Qu, Liangti
基于氧化石墨烯的超亲水性三维组装，成功制备了一种高性能的发电装置。这种特别设计的氧化石墨烯组件的开放框架在很大程度上促进了水分子的扩散，以产生游离的带电离子作为自由载流子。同时，它的不对称含氧基团使离子梯度加速离子电荷载体的定向传输。一个高功率密度的CA。1 mW cm ~（-2），能量转换效率约为100%。实现了52%，其作为实用电源的潜力被一个简单的基于铯的化学势能收集系统所证明。
A high-performance power generator has been successfully fabricated based on a superhydrophilic three-dimensional assembly of graphene oxide. The open framework of this specially designed graphene oxide assembly largely facilitated the diffusion of water molecules to produce the dissociated charged ions as free carriers. Meanwhile, its asymmetrical oxygen-containing groups enabled an ionic gradient to accelerate the directed transport of the ionic charge carriers. A high power density of ca. 1 mW cm(-2) and an energy-conversion efficiency of ca. 52% were achieved and its potential as a practical power source was evidenced by a simple pendulum-based chemical potential energy harvesting system.