Figure 10
From: Study on the microcrystal cellulose and the derived 2D graphene and relative carbon materials
Comparison of bMCC-derived b-GMC and lignin-derived l-GMC. (a) A photo of bMCC-derived b-GMC. (b) A SEM image of bMCC-derived b-GMC. The b-GMC is soft and elastic. (c) Molecular model of bMCC-derived b-GMC. (d) A SEM image of lignin-derived l-GMC. The l-GMC is hard, like glass and ceramic. (e) A HRTEM image of l-GMC. (f) Molecular model of lignin-derived GMC. In lignin-derived l-GMC the sp2 graphene microcrystal units are chemically bonded by sp3 carbon atoms, forming the sp2-sp3 hybrid hard GMC. On the other hand, the micrystal units of b-GMC are randomly piled together forming a soft and elastic aggregate without chemical bond connection.
