fig6
From: Design of manganese dioxide for supercapacitors and zinc-ion batteries: similarities and differences

Figure 6. (A) Synthesis of β-MnO2/parallel birnessite core/shell nanorod and a diagram illustrating the enhanced utilization of Mn. Reproduced with permission[105]. Copyright 2018, American Chemical Society. (B) preparation of 3D network composed of MnO2 sheets and PANI chains. Reproduced with permission[106]. Copyright 2017, American Chemical Society. (C) fabrication of Ti3C2Tx/MnO2 NW composite paper. Reproduced with permission[107]. Copyright 2018, Wiley-VCH. (D) fabrication of GQD/MnO2 heterostructures. Reproduced with permission[113]. Copyright 2018, Wiley-VCH. GQDs: graphene quantum dots.