气候变化领域集成服务门户(CCPortal): Flexible, low-cost and scalable, nanostructured conductive paper-based, efficient hygroelectric generator

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DOI	10.1039/d0ee03111a
	Flexible, low-cost and scalable, nanostructured conductive paper-based, efficient hygroelectric generator
	Moreira K.S.; Lermen D.; Dos Santos L.P.; Galembeck F.; Burgo T.A.L.
发表日期	2021
ISSN	17545692
起始页码	353
结束页码	358
卷号	14 期号:1
英文摘要	Electric energy harvesting mediated by atmospheric humidity was first demonstrated in 2010, followed by the description of different approaches by many authors. Moisture-based energy-harvesting devices usually contain metals and/or are fabricated using nanomaterials and lithographic processes. Here we present a flexible energy harvesting device that is an asymmetric capacitor, formed by two electrodes made out of Kraft paper coated with exfoliated and reassembled graphite (ERG). The electrodes are doped with different chemicals and finished using standard papermaking processes. The voltage output of a single ERG-based hygroelectric generator (ERG-HEG) cell is as high as 0.5 V and it can deliver 250 nA of electric current through a 2 MO resistor, for days. The voltage and current outputs can be scaled up by connecting ERG-HEGs in series or parallel. Energy harvesting is also achieved by short (5 seconds) cyclic capacitor charge/discharge extending for more than two weeks. Examinaton of the electrodes during their operation, using Kelvin probe and microscopy analysis, showed that negative charge carriers are the main actors in the ERG-HEG devices. The low material cost, the simple fabrication processes and the energy output invite further development and scaling-up of this "green"alternative for producing electricity. © The Royal Society of Chemistry.
英文关键词	Atmospheric humidity; Carrier mobility; Costs; Graphite electrodes; Green manufacturing; Kraft paper; Asymmetric capacitors; Charge/discharge; Conductive papers; Energy harvesting device; Fabrication process; Lithographic process; Negative charge carriers; Papermaking process; Energy harvesting; electrical power; electrode; energy efficiency; equipment; humidity; hydroelectric power; nanotechnology; Conductive Papers; Costs; Electricity; Electrodes; Energy; Harvesting; Output; Processes
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190812
作者单位	Department of Chemistry, Federal University of Santa Maria, Santa Maria, RS 97105-900, Brazil; Institute of Chemistry, University of Campinas, Campinas, SP 13083-970, Brazil; Department of Physics, Federal University of Santa Maria, Santa Maria, RS 97105-900, Brazil
推荐引用方式 GB/T 7714	Moreira K.S.,Lermen D.,Dos Santos L.P.,et al. Flexible, low-cost and scalable, nanostructured conductive paper-based, efficient hygroelectric generator[J],2021,14(1).
APA	Moreira K.S.,Lermen D.,Dos Santos L.P.,Galembeck F.,&Burgo T.A.L..(2021).Flexible, low-cost and scalable, nanostructured conductive paper-based, efficient hygroelectric generator.Energy & Environmental Science,14(1).
MLA	Moreira K.S.,et al."Flexible, low-cost and scalable, nanostructured conductive paper-based, efficient hygroelectric generator".Energy & Environmental Science 14.1(2021).