We present the fabrication of lightweight cellular carbon materials using an origami-inspired technique. Complex, porous shapes are fabricated by carbonizing an origami structure made by pre-creasing and manual folding a flat piece of pure cellulosic paper. This relatively simple process yields carbon origami shapes that feature density as low as 0.014 ± 0.005 g/cm³, 0.93% the density of bulk glassy carbon. Yet, the specific stiffness of this carbon origami and its capability to transfer load compare advantageously to other lightweight cellular materials such as carbon nanotube foams, graphene elastomers, metallic microlattices, silica aerogel, and carbon foams. Such promising mechanical properties coupled to the high temperature resistance and excellent chemical and electrochemical stability of carbon positions carbon origami as a candidate to fabricate lightweight, multifunctional materials.

我们介绍了使用折纸启发技术制造的轻质蜂窝状碳材料。通过碳化折纸结构来制作复杂的多孔形状，该折纸结构是通过预先压折和手动折叠纯纤维素纸的平整薄片而制成的。这种相对简单的过程产生的碳折纸形状具有低至0.014±0.005 g / cm ^3的密度密度为0.93％的玻璃状散装碳。然而，该碳折纸的比刚度及其传递载荷的能力与其他轻质多孔材料如碳纳米管泡沫，石墨烯弹性体，金属微晶格，二氧化硅气凝胶和碳泡沫相比具有优势。这种有前途的机械性能，再加上碳的耐高温性和出色的化学和电化学稳定性，使碳折纸成为制造轻巧，多功能材料的候选材料。