fig5
![Recent development in addressing challenges and implementing strategies for manganese dioxide cathodes in aqueous zinc ion batteries](https://image.oaes.cc/d5959b56-cecc-4c5d-aa21-b59c15b140b6/em30119.fig.5.jpg)
Figure 5. (A) The reaction path of β-MnO2; (B) The XRD patterns of α-MnO2; This figure is reprinted (adapted) with permission from Pan et al. Copyright (2016) Nature Research[65]. (C) In situ pH changes of β-MnO2/Zn. This figure is reprinted (adapted) with permission from Liu et al. Copyright (2021) Elsevier[78].