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Biological Nanofibrous Generator for Electricity Harvest from Moist Air Flow

机译：生物纳米纤维发生器，用于从潮湿气流中收集电能

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摘要

Electricity harvest from ubiquitous water has been endeavored, using nanogenerators based on carbon nanomaterials, to acquire renewable and clean energy and cope with fossil depletion and pollution as well. Meanwhile, though many biological organisms can harness water for bioelectricity, it is still challenging to produce biological nanogenerators based on biological nanomaterials with billions of tons of annual production in nature. Herein biological nanofibrils, including cellulose, chitin, silk fibroin, and amyloid, are produced either by liquid-exfoliation of biomasses or by supramolecular assembly of bio-macromolecules. With the intrinsic hydrophilicity and charged states, they can capture moisture from air and form hydrated nanochannels, in analogue to ionic channels of cytomembranes. When exposing their aerogels to moist air flow, there is a balance of water absorption and evaporation, thus producing a streaming potential and an open-circuit voltage across the aerogel. With flexibility, sustainability, biocompatibility, and biodegradability, these biological nanogenerators can harvest electricity from moist air flow in nature (e.g., wind, respiration and perspiration) and in industry, and serve for environmentally-friendly, low-cost, high-efficiency, wearable, and miniaturized power devices.
机译：人们一直在努力使用基于碳纳米材料的纳米发电机从无处不在的水中收集电能，以获取可再生和清洁能源，并应对化石的枯竭和污染。同时，尽管许多生物有机体可以利用水进行生物电发电，但要生产基于自然年产数十亿吨生物纳米材料的生物纳米发电机仍然具有挑战性。本文中，生物纳米原纤维，包括纤维素，甲壳质，丝纤蛋白和淀粉样蛋白，是通过生物质的液体剥落或通过生物大分子的超分子组装而产生的。具有固有的亲水性和带电状态，它们可以捕获空气中的水分，并形成类似于细胞膜离子通道的水合纳米通道。将其气凝胶暴露在潮湿的气流中时，吸水和蒸发之间存在平衡，从而在气凝胶上产生流动电势和开路电压。这些生物纳米发电机具有灵活性，可持续性，生物相容性和生物降解性，可以从自然界（例如风，呼吸和汗）和工业中的潮湿气流中收集电力，并为环境友好，低成本，高效率，可穿戴的微型电源设备。

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  • 来源
    《Advanced Functional Materials》 |2019年第32期|1901798.1-1901798.8|共8页
  • 作者

    Li Mingjie; Zong Lu; Yang Weiqing; Li Xiankai; You Jun; Wu Xiaochen; Li Zehui; Li Chaoxu;

  • 作者单位

    Chinese Acad Sci Qingdao Inst Bioenergy & Bioproc Technol Grp Biomimet Smart Mat Songling Rd 189 Qingdao 266101 Shandong Peoples R China;

    Chinese Acad Sci Qingdao Inst Bioenergy & Bioproc Technol Grp Biomimet Smart Mat Songling Rd 189 Qingdao 266101 Shandong Peoples R China|Qingdao Univ Coll Chem & Chem Engn 308 Ningxia Rd Qingdao 266071 Shandong Peoples R China;

    Chinese Acad Sci Qingdao Inst Bioenergy & Bioproc Technol Grp Biomimet Smart Mat Songling Rd 189 Qingdao 266101 Shandong Peoples R China|Univ Chinese Acad Sci Ctr Mat & Optoelect Engn 19A Yuquan Rd Beijing 100049 Peoples R China;

    Chinese Acad Sci Qingdao Inst Bioenergy & Bioproc Technol Grp Biomimet Smart Mat Songling Rd 189 Qingdao 266101 Shandong Peoples R China|Tsinghua Univ Sch Environm State Key Joint Lab Environm Simulat & Pollut Con Shuangqing Rd 30 Beijing 100084 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    biological nanofibrils; electricity generation; moist air; streaming potential;

    机译：生物纳米纤维发电;潮湿的空气;流潜力;

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