Three-dimensional assemblies of graphene have been considered as promising starting materials for many engineering, energy, and environmental applications due to its desirable mechanical properties, high specific area, and superior thermal and electrical transfer ability. However, little has been done to introduce designed shapes into scalable graphene assemblies. In this work, we show here a combination of conventional graphene growing technique-chemical vapor deposition with additive manufacturing. Such synthesis collaboration enables a hierarchically constructed porous 3D graphene foam with large surface area (994.2 m2/g), excellent conductivity (2.39 S/cm), reliable mechanical properties (E = 239.7 kPa), and tunable surface chemistry that can be used as a strain sensor, catalyst support, and solar steam generator.

中文翻译：

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具有用于能源和环境应用的设计结构的三维可自由变形的石墨烯泡沫。

石墨烯的三维组装体由于其理想的机械性能，高比表面积以及出色的热和电传递能力，已被认为是许多工程，能源和环境应用中很有希望的原材料。但是，几乎没有做过将设计形状引入可缩放石墨烯组件的工作。在这项工作中，我们在这里展示了常规石墨烯生长技术-化学气相沉积与增材制造的结合。这种合成协作可实现具有大表面积（994.2 m2 / g），出色的电导率（2.39 S / cm），可靠的机械性能（E = 239.7 kPa）和可调整的表面化学性质的分层构造的多孔3D石墨烯泡沫。应变传感器，催化剂载体和太阳能蒸汽发生器。