Circadian humidity fluctuation induced capillary flow for sustainable mobile energy

doi:10.1038/s41467-022-28998-y

CAS OpenIR

	Circadian humidity fluctuation induced capillary flow for sustainable mobile energy
	Tang, Jiayue 1; Zhao, Yuanyuan 2; Wang, Mi 3,4; Wang, Dianyu 5; Yang, Xuan 5; Hao, Ruiran 6; Wang, Mingzhan 4,7; Wang, Yanlei 4; He, Hongyan 3,4; Xin, John H.; Zheng, Shuang 8
	2022-03-11
Source Publication	NATURE COMMUNICATIONS
Volume	13 Issue:1 Pages:9
Abstract	Circadian humidity fluctuation is an important factor that affects human life all over the world. Here we show that spherical cap-shaped ionic liquid drops sitting on nanowire array are able to continuously output electricity when exposed to outdoor air, which we attribute to the daily humidity fluctuation induced directional capillary flow. Specifically, ionic liquid drops could absorb/desorb water around the liquid/vapor interface and swell/shrink depending on air humidity fluctuation. While pinning of the drop by nanowire array suppresses advancing/receding of triple-phase contact line. To maintain the surface tension-regulated spherical cap profile, inward/outward flow arises for removing excess fluid from the edge or filling the perimeter with fluid from center. This moisture absorption/desorption-caused capillary flow is confirmed by in-situ microscope imaging. We conduct further research to reveal how environmental humidity affects flow rate and power generation performance. To further illustrate feasibility of our strategy, we combine the generators to light up a red diode and LCD screen. All these results present the great potential of tiny humidity fluctuation as an easily accessible anytime-and-anywhere small-scale green energy resource. Droplet generators convert mechanical movements of droplets into small-scale electricity. Here, Tang et al. report a humidity-driven power generator by utilizing daily humidity fluctuation in atmosphere enabling continuous generation of electricity upon moisture absorption and desorption cycles.
DOI	10.1038/s41467-022-28998-y
Language	英语
WOS Keyword	IONIC LIQUID ; POWER-GENERATION ; GRAPHENE OXIDE ; ELECTRICITY ; TRANSPORT
Funding Project	Yellow River Conservancy Technical Institute ; China Postdoctoral Science Foundation[2021T140035] ; National Natural Science Foundation of China[21922813] ; National Natural Science Foundation of China[22078322] ; National Natural Science Foundation of China[22178344] ; Youth Innovation Promotion Association of CAS[2017066] ; Youth Innovation Promotion Association of CAS[2021046]
WOS Research Area	Science & Technology - Other Topics
WOS Subject	Multidisciplinary Sciences
Funding Organization	Yellow River Conservancy Technical Institute ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS
WOS ID	WOS:000767892300023
Publisher	NATURE PORTFOLIO
Citation statistics
Document Type	期刊论文
Identifier	http://ir.ipe.ac.cn/handle/122111/52485
Collection	中国科学院过程工程研究所
Corresponding Author	He, Hongyan; Zheng, Shuang
Affiliation	1.Hong Kong Univ Sci & Technol, Dept Chem, Hong Kong, Peoples R China 2.Hong Kong Polytech Univ, Inst Text & Clothing, Hong Kong, Peoples R China 3.Chinese Acad Sci, Beijing Key Lab Ionic Liquids Clean Proc, Inst Proc Engn, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Beihang Univ, Beijing 100191, Peoples R China 6.Yellow River Conservancy Tech Inst, Sch Environm Engn, Kaifeng 475004, Peoples R China 7.Univ Chicago, Pritzker Sch Mol Engn, Chicago, IL 60637 USA 8.City Univ Hong Kong, Dept Biomed Sci, Hong Kong, Peoples R China
Recommended Citation GB/T 7714	Tang, Jiayue,Zhao, Yuanyuan,Wang, Mi,et al. Circadian humidity fluctuation induced capillary flow for sustainable mobile energy[J]. NATURE COMMUNICATIONS,2022,13(1):9.
APA	Tang, Jiayue.,Zhao, Yuanyuan.,Wang, Mi.,Wang, Dianyu.,Yang, Xuan.,...&Zheng, Shuang.(2022).Circadian humidity fluctuation induced capillary flow for sustainable mobile energy.NATURE COMMUNICATIONS,13(1),9.
MLA	Tang, Jiayue,et al."Circadian humidity fluctuation induced capillary flow for sustainable mobile energy".NATURE COMMUNICATIONS 13.1(2022):9.

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