Journal
JOURNAL OF POROUS MATERIALS
Volume 26, Issue 5, Pages 1489-1494Publisher
SPRINGER
DOI: 10.1007/s10934-019-00745-7
Keywords
Fe2O3; NiO nanocomposites; Waste stainless-steel mesh; Negative electrode; Mesoporous structure; Areal capacitance
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Fe2O3/NiO nanocomposites were fabricated by anodising waste stainless-steel mesh under hydrothermal environment with high specific surface area and were then used as a flexible negative electrode. The as-prepared composites were studied by powder X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy and N-2 adsorption-desorption measurements. Electrochemical evaluations in 1 mol l(-1) KOH solution confirmed that the anodised stainless-steel mesh as a negative electrode exhibited a maximum areal capacitance of 1.22 F cm(-2) and remarkable cycling stability with 93.3% initial-capacitance retention after 10,000 charging and discharging cycles, indicating promising flexible-supercapacitor applications.
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