Spontaneous power source in ambient air of a well-directionally reduced graphene oxide bulk†,Energy & Environmental Science

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Spontaneous power source in ambient air of a well-directionally reduced graphene oxide bulk†
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2018-07-17 00:00:00 , DOI: 10.1039/c8ee01502c
Huhu Cheng _{1,

2,

3,

4,

5} , Yaxin Huang _{1,

2,

3,

4,

5} , Fei Zhao _{6,

7,

8} , Ce Yang _{1,

2,

3,

4,

5} , Panpan Zhang _{1,

2,

3,

4,

5} , Lan Jiang _{1,

2,

3,

4,

5} , Gaoquan Shi _{5,

9,

10,

11} , Liangti Qu _{1,

2,

3,

4,

5}

Affiliation

Spontaneous electrical potential is essential and widely exists in living cell membranes of organism, and could provide a novel power-supply system without external stimuli. However, the highly complex and delicate biological structures have restricted the huge electrical energy in practical applications. Herein, we report the spontaneous electric generation of a functional groups-reconfigured graphene oxide membrane in ambient atmosphere, which was prepared by a directionally-induced thermal reduction strategy. The as-prepared asymmetric porous graphene oxide membrane (a-GOM) with a size of only 4 mm² can proactively generate a sustained electrical voltage of up to 450 mV in air without the need of external stimuli such as mechanical movement, light, heat, and liquid water. Of practical importance, it is easy to reach a high voltage of more than 10 V by simple series stacking of a-GOM units, powering many commercial electronic components such as liquid crystal displays (LCD) and light-emitting diodes (LED). In addition, flexible and foldable power generation devices having soft package technology (being used for the fabrication of commercial lithium-ion batteries) are achievable on the basis of the assembly of a-GOM units.

中文翻译：

定向减少的氧化石墨烯块体在周围空气中的自发电源†

自发电势是必不可少的，并且广泛存在于生物体的活细胞膜中，并且可以提供一种无需外部刺激的新型电源系统。然而，高度复杂和脆弱的生物结构限制了实际应用中的巨大电能。在本文中，我们报告了通过定向诱导的热还原策略制备的，在环境大气中功能性基团重新配置的氧化石墨烯膜的自发发电。制备的尺寸仅为4 mm ^2的不对称多孔氧化石墨烯膜（a-GOM）可以在空气中主动产生高达450 mV的持续电压，而无需外部刺激，例如机械运动，光，热和液态水。实际上，通过简单地串联堆叠a-GOM单元很容易达到10 V以上的高压，从而为许多商用电子组件（例如液晶显示器（LCD）和发光二极管（LED））供电。另外，基于a-GOM单元的组装，可以实现具有软包装技术的柔性且可折叠的发电装置（用于制造商用锂离子电池）。

更新日期：2018-07-17

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