Futuristic energy materials are expected to be biocompatible, green, sustainable and economical. One of the ways to develop such energy storage materials is by utilizing natural sources such as plants, animals, and insects. Autotrophs fix nitrogen and carbon in the atmosphere through rhizobium and photosynthesis, respectively, which are later consumed by animals and insects as energy sources. Biocharring these plants and insects derived products that could help us regain this carbon and nitrogen in the form of biocharred energy materials. Insect-derived Tassar cocoon, Mulberry cocoon, and Tassar silk thread give N-doped carbon matrix upon biocharring which is further processed to obtain reduced graphene oxide, whereas plant-derived Jute gives a pure carbon matrix on biocharring, all four materials show typical properties of charge storage. Exploring further on these natural charge storage materials will help the energy industries to design green charge storage systems. Further, such an approach in future will open up new avenues of business for silk and jute farmers of the world.

中文翻译：

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昆虫和植物来源的天然纤维的生物炭化：生产“碳基电荷存储纳米材料”的绿色途径

未来能源材料有望具有生物相容性，绿色，可持续性和经济性。开发此类储能材料的方法之一是利用自然资源，例如植物，动物和昆虫。自养生物分别通过根瘤菌和光合作用将氮和碳固定在大气中，后来被动物和昆虫消耗为能源。对这些植物和昆虫衍生的产品进行生物炭化处理，可以帮助我们以生物炭化能源材料的形式重新获得碳和氮。昆虫来源的Tassar茧，桑树茧和Tassar丝线在生物炭化后提供了N掺杂的碳基体，然后对其进行进一步处理以获得还原的氧化石墨烯，而植物来源的黄麻在生物炭化后得到了纯碳基体，所有四种材料均显示出典型的特性电荷存储。进一步探索这些天然电荷存储材料将有助于能源行业设计绿色电荷存储系统。此外，将来这种方法将为世界各地的丝和黄麻种植者开辟新的业务渠道。