fig2

Fe<sup>3+</sup>-driven tunnel engineering for stabilizing metastable ramsdellite MnO<sub>2</sub> in high-performance zinc-ion batteries

Figure 2. The TEM and HRTEM images with corresponding SAED images of (A) β-MnO2, (B) R-FexMn1-xO2. (C) corresponding elemental mapping images of R-FexMn1-xO2 powders. TEM: Transmission electron microscopy; HRTEM: high-resolution transmission electron microscopy; SAED: selective area electron diffraction.

Energy Materials
ISSN 2770-5900 (Online)
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