State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
Department of Chemistry, Yale University, New Haven, CT 06520, USA.
Int J Biol Macromol. 2023 Dec 31;253(Pt 3):126903. doi: 10.1016/j.ijbiomac.2023.126903. Epub 2023 Sep 14.
In recent years, the pursuit of high-performance nano-flexible electronic composites has led researchers to focus on nanocellulose-graphene composites. Nanocellulose has garnered widespread interest due to its exceptional properties and unique structure, such as renewability, biodegradability, and biocompatibility. However, nanocellulose materials are deficient in electrical conductivity, which limits their applications in flexible electronics. On the other hand, graphene boasts remarkable properties, including a high specific surface area, robust mechanical strength, and high electrical conductivity, making it a promising carbon-based nanomaterial. Consequently, research efforts have intensified in exploring the preparation of graphene-nanocellulose flexible electronic composites. Although there have been studies on the application of nanocellulose and graphene, there is still a lack of comprehensive information on the application of nanocellulose/graphene in flexible electronic composites. This review examines the recent developments in nanocellulose/graphene flexible electronic composites and their applications. In this review, the preparation of nanocellulose/graphene flexible electronic composites from three aspects: composite films, aerogels, and hydrogels are first introduced. Next, the recent applications of nanocellulose/graphene flexible electronic composites were summarized including sensors, supercapacitors, and electromagnetic shielding. Finally, the challenges and future directions in this emerging field was discussed.
近年来，人们对高性能纳米柔性电子复合材料的追求促使研究人员专注于纳米纤维素-石墨烯复合材料。纳米纤维素因其独特的性能和结构，如可再生性、生物降解性和生物相容性而受到广泛关注。然而，纳米纤维素材料的导电性较差，限制了其在柔性电子产品中的应用。另一方面，石墨烯具有出色的性能，包括高比表面积、强机械强度和高导电性，使其成为一种有前途的碳基纳米材料。因此，研究人员加大了探索制备石墨烯-纳米纤维素柔性电子复合材料的力度。尽管已经有关于纳米纤维素和石墨烯的应用研究，但纳米纤维素/石墨烯在柔性电子复合材料中的应用仍缺乏全面的信息。本文综述了纳米纤维素/石墨烯柔性电子复合材料的最新发展及其应用。在本文中，首先介绍了从三个方面制备纳米纤维素/石墨烯柔性电子复合材料：复合薄膜、气凝胶和水凝胶。接下来，总结了纳米纤维素/石墨烯柔性电子复合材料的最新应用，包括传感器、超级电容器和电磁屏蔽。最后，讨论了这一新兴领域的挑战和未来发展方向。
