Feng Junzong, Su Bao-Lian, Xia Hesheng, Zhao Shanyu, Gao Chao, Wang Lukai, Ogbeide Osarenkhoe, Feng Jian, Hasan Tawfique
Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA, UK.
Chem Soc Rev. 2021 Mar 21;50(6):3842-3888. doi: 10.1039/c9cs00757a. Epub 2021 Feb 1.
As an extraordinarily lightweight and porous functional nanomaterial family, aerogels have attracted considerable interest in academia and industry in recent decades. Despite the application scopes, the modest mechanical durability of aerogels makes their processing and operation challenging, in particular, for situations demanding intricate physical structures. "Bottom-up" additive manufacturing technology has the potential to address this drawback. Indeed, since the first report of 3D printed aerogels in 2015, a new interdisciplinary research area combining aerogel and printing technology has emerged to push the boundaries of structure and performance, further broadening their application scope. This review summarizes the state-of-the-art of printed aerogels and presents a comprehensive view of their developments in the past 5 years, and highlights the key near- and mid-term challenges.
作为一类极其轻质且多孔的功能性纳米材料家族，气凝胶在近几十年来引起了学术界和工业界的广泛关注。尽管气凝胶有诸多应用领域，但其适度的机械耐久性使其加工和操作颇具挑战，特别是在需要复杂物理结构的情况下。“自下而上”的增材制造技术有潜力解决这一缺点。事实上，自2015年首次报道3D打印气凝胶以来，一个将气凝胶与打印技术相结合的新的跨学科研究领域应运而生，以突破结构和性能的界限，进一步拓宽其应用范围。本综述总结了打印气凝胶的最新技术，并全面介绍了它们在过去5年中的发展情况，同时突出了关键的近期和中期挑战。
