fig7
From: Design of manganese dioxide for supercapacitors and zinc-ion batteries: similarities and differences
Figure 7. (A) Phase transition between Zn-birnessite and α-MnO2. Reproduced with permission[114]. Copyright 2018, Wiley-VCH. (B and C) reaction pathway of Zn insertion in prepared γ-MnO2 cathode. Reproduced with permission[118]. Copyright 2015, American Chemical Society. (D) Zn2+ intercalation/deintercalation mechanism for orthorhombic MnO2. Reproduced with permission[120]. Copyright 2021, Royal Society of Chemistry.
