基于纤维素的纳米发电机材料研究进展

Research progress of nanogenerator materials based on cellulose

纤维素是由植物或细菌制备的生物质材料,具有高比表面积、良好的生物相容性和优异的机械柔韧性.纤维素分子链上的羟基赋予其较强的失电子能力,分子链之间的氢键形成的偶极子赋予其压电性能,并且纤维素具有可再生和可降解等优点,可以作为一种环境友好材料用来制备柔性纳米发电机.本文主要介绍了近几年纤维素基压电纳米发电机、摩擦纳米发电机和压电/摩擦混合纳米发电机的研究进展,并对纤维素基纳米发电机的发展前景及面临的挑战进行了探讨.

Cellulose,a biomass material prepared by plants or bacterial,has high specific surface area,good biocompatibility and excellent mechanical flexibility.The hydroxyl group on the molecular chains of cellulose gives it a strong ability to lose electrons.The dipoles formed by the hydrogen bonds between the molecular chains endow it piezoelectric properties.Besides,cellulose has renewable and degradable merits,so it can be used as an environment-friendly material to prepare flexible nanogenerators.This paper mainly introduces the research progress of cellulose-based piezoelectric nanogenerators,friction nanogenerators and hybrid piezoelectric/friction nanogenerators in recent years.The development prospects and challenges of cellulose-based nanogenerators are also discussed.