基于还原-冷压制备的Janus湿气诱导水伏发电GO-rGO复合材料

张玮峰; 王荦敏; 邓元

doi:10.13801/j.cnki.fhclxb.20230323.001

基于还原-冷压制备的Janus湿气诱导水伏发电GO-rGO复合材料

doi: 10.13801/j.cnki.fhclxb.20230323.001

张玮峰^1, ,,
王荦敏^{1, 2},
邓元^{1, 2}

1.
北京航空航天大学杭州创新研究院　浙江省智能传感与芯片集成技术重点实验室，杭州 310051
2.
北京航空航天大学　前沿科学技术创新研究院，北京 100191

基金项目: 国家自然科学基金青年科学基金项目(52003015)；浙江省自然科学基金重点项目(LZ23E020004)；国家重点研发计划(2018YFA0702100)；浙江省重点研发计划(2021C01026)；浙江省领军型创新创业团队(2020R01007)

详细信息

通讯作者:
张玮峰，博士，副研究员，硕士生导师，研究方向为新能源材料、超浸润材料的设计与应用　E-mail: weifengzhang0205@163.com

中图分类号: O647；TB332
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出版历程
- 收稿日期: 2023-02-02
- 修回日期: 2023-03-14
- 录用日期: 2023-03-17
- 网络出版日期: 2023-03-24
- 刊出日期: 2023-12-01

Janus moisture induced hydrovoltaic electricity GO-rGO composite material via reduction and tabletting method

ZHANG Weifeng^{1
, ,},
WANG Luomin^{1, 2},
DENG Yuan^{1, 2}

1.
Key Laboratory of Intelligent Sensing Materials and Chip Integration Technology of Zhejiang Province, Hangzhou Innovation Institute of Beihang University, Hangzhou 310051, China
2.
Research Institute for Frontier Science, Beihang University, Beijing 100191, China

Funds: National Natural Science Foundation of China (52003015); Zhejiang Provincial Natural Science Foundation of China (LZ23E020004); National Key Research and Development Program of China (2018YFA0702100); Zhejiang Provincial Key Research and Development Program (2021C01026); Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang (2020R01007)

摘要

摘要: 随着万物互联、信息时代下新型传感器自供电需求的增加与传统化石能源使用所造成的全球变暖和环境问题的加剧，亟需开发新的能源利用与发电方式。水伏发电作为一种无源、零碳、负热的电能转化方式，能够充分利用自然界中的水循环，具有重要的研究价值。本文以湿气诱导水伏发电为能源利用形式，以氧化石墨烯(GO)为原材料，通过多巴胺自聚合反应将部分原材料反应为还原氧化石墨烯(rGO)，结合冻干与压片的方法制备出具有两面特性的Janus水伏发电GO-rGO复合材料。该材料具有明显的含氧官能团梯度分布性质，在高湿度条件下可以进行长时发电，集成后的单个器件的开路电压接近400 mV，功率密度可达25 μW/cm³，同时具有良好的稳定性，在使用1年后仍然具有较好的输出性能。更重要的是，此发电机通过串联可实现阵列化，从而进一步提升发电性能，8个器件串联输出电压便可轻易达到3 V以上，可用于小功率器件的驱动与呼气-吸气行为的响应。本湿气发电材料及器件制备方法简单，输出性能优异，在自供电与传感领域展现出良好的应用前景。
- 水伏发电 /
- 化学还原 /
- Janus材料 /
- 湿气诱导 /
- 自供电 /
- 传感
Abstract: With the increasing demand of sensor self-power supply device under the information age and the aggravation of global warming and environmental problems caused by the use of traditional fossil energy, it is urgent to come up with new energy utilization and power generation ways. As a passive, zero-carbon and negative heat energy conversion method, hydrovoltaic power generation can make full use of the water cycle in nature and has significant research value. In this paper, moisture induced hydrovoltaic technology is chosen as the energy utilization form and graphene oxide (GO) was used as the raw material. Through the self-polymerization reaction of dopamine, part of the raw material could be reacted to reduced grapheme oxide (rGO), and the freeze-drying and tableting were combined to fabricate the Janus hydrovoltaic GO-rGO composite material. The as-prepared material has obvious characteristics of gradient distribution of oxygen-containing functional groups and can generate electricity for a long time under high humidity conditions, the output voltage of a single hydrovoltaic device is nearly 400 mV and the peak power density is up to 25 μW/cm³. Besides, it exhibits excellent stability which still maintain good output performance after 1 year. More importantly, this generator can be arrays in series to further improve the generation property for driving low-power devices and responding the expiration-inspiration behavior, the output voltage of 8 devices in series can easily reach to 3 V. The as-prepared moisture hydrovoltaic material and generator have the advantage of simple preparation method and excellent output performance, thus showing good application prospect in the field of self-power supply and sensing.
- hydrovoltaic power /
- chemical reduction /
- Janus material /
- moisture induction /
- self-power mode /
- sensing

HTML全文

图 1 Janus湿气诱导水伏发电氧化石墨烯(GO)-还原氧化石墨烯(rGO)复合材料的制备流程与水伏发电器件示意图

Figure 1. Fabrication process of the Janus moisture induced electricity generation graphene oxide (GO)-reduced grapheme oxide (rGO) composite material and the corresponding hydrovoltaic generator

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图 2 Janus湿气诱导水伏发电GO-rGO复合材料的表面形貌：GO部分((a), (b))和rGO部分((c), (d))的数码照片与SEM图像

Figure 2. Surface morphology of the Janus moisture induced electricity generation GO-rGO composite material: Digital image and SEM image of the GO surface ((a), (b)) and rGO surface ((c), (d))

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图 3 Janus湿气诱导水伏发电GO-rGO复合材料的官能团浓度梯度表征：(a) Janus水伏发电材料(MEGM)的SEM截面照片；(b) GO区域与rGO区域的O/C原子含量比；((c), (d)) GO区域与rGO区域的C元素XPS C1s谱图；(e) GO面与rGO面的FTIR图谱

Figure 3. Characterization of functional group concentration gradient in Janus moisture induced electricity generation GO-rGO composite material: (a) Cross section SEM image of the Janus moisture induced electricity generation material (MEGM); (b) O/C atomic ratio of the GO surface and rGO surface; ((c), (d)) High-resolution XPS C as narrow scans of the GO surface and rGO surface, respectively; (e) FTIR spectra of GO surface and rGO surface

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图 4 Janus湿气诱导水伏发电GO-rGO复合材料与发电机的发电性能: (a) Janus湿气诱导水伏发电复合材料的发电机制；(b) 材料在不同湿度下的输出电压； (c) 水伏器件的输出电压/输出电流随外接负载的变化；(d) 水伏器件长时间工作时的输出电压；(e) 材料在0天与放置365天后的输出电压；(f) 纯rGO与GO膜材料的湿气发电性能

Figure 4. Performance of the Janus moisture induced electricity generation GO-rGO composite material and generator: (a) Electricity generation scheme of the Janus GO-rGO composite material; (b) Output voltage of the as-prepared material at different moisture condition; (c) Output voltage and current density of the Janus MEGM with different electric resistors; (d) Output voltage of the hydrovoltaic device working for a long time; (e) Output performance of the material at the original state and after 365 days, respectively; (f) Output voltage of the pure rGO and GO material, respectively

RH—Relative humidity

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图 5 湿气诱导水伏发电机的应用展示：(a) Janus湿气诱导水伏发电机输出电压随呼气-吸气的变化；(b) 8器件串联水伏器件阵列的输出电压，附图是阵列外观数码照片

Figure 5. Application illustration of the moisture induced hydro-voltaic generator: (a) Responsive performance of the Janus hydrovoltaic device between expiration and inspiration; (b) Output voltage of the hydrovoltaic array with 8 individual devices connected in series, insets are the digital photo of the device array and the illustration of LED self-powered application

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