Fig 1 Different preparation methods of graphene 3D structure materials. (a) Photograph of a piece of 3DG was prepared by self-assembly method standing on a dandelion, Adapted with permission from Ref. 42. Copyright 2012, Wiley-VCH; (b) Cartoonic presentation of 3DG preparation with Template method, Adapted with permission from Ref. 52. Copyright 2014, The Royal Society of Chemistry; (c) Schematic illustration of 3DG formation with CVD method. Adapted with permission from Ref. 56, Copyright 2016, American Chemical Society; (d) Schematic illustration of 3D-print, Adapted with permission from Ref. 64, Copyright 2015, Nature Publishing Group; (e) Photographs of a large-size and structure-intact GAB with an area of about 1 m2; Adapted with permission from Ref. 76, Copyright 2017, American Chemical Society; (f) Schemes of the 3D graphene preparation process on active metal substrate and on the arbitrary conductive target supported by active metal. Adapted with permission from Ref. 44. Copyright 2013, Nature Publishing Group.
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