Table 3 A summary of electrochemical performance of Fe₂O₃ based nanostructures

Single-crystalline α -Fe₂O₃ nanosheets on conductive substrates

Thermal heating

700 mA h g⁻¹ after 80 cycles at 65 mA g ⁻¹

[20]

Uniform single-crystalline α-Fe₂O₃ nanodiscs

Controlled oxalic acid etching process

662 mA h g⁻¹ after 100 cycles at 200 mA g⁻¹

[102]

Single-crystalline α-Fe₂O₃ nanosheets grown directly on Ni foam

Template-free growth

518 mA h g⁻¹ after 50 cycles at 0.1 C

[103]

Hierarchical α-Fe₂O₃ hollow spheres with sheet-like subunits

Quasimicroemulsion-templated hydrothermal reaction

710 mA h g⁻¹ after 100 cycles at 200 mA g⁻¹

[85]

Hierarchical Fe₂O₃ microboxes

Annealing prussian blue (PB) microcubes

945 mA h g⁻¹ after 30 cycles at 200 mA g⁻¹

[54]

Carbon-coated α-Fe₂O₃ hollow nanohorns grafted on CNT backbones

Direct growth and thermal transformation of β-FeOOH nanospindles on CNTs, followed by carbon nano-coating

800 mA h g⁻¹ after 100 cycles at 500 mA g⁻¹

[104]

α-Fe₂O₃ nanowires

Low-temperature CVD

456 mA h g⁻¹ after 100 cycles at 0.1 C

[105]