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Viability of Co₃O₄/TiO₂ Composite as Electrode Materials for Supercapacitor and efficient OER/HER Electrocatalysis
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DOI：10.1016/j.materresbull.2026.114204.png)
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Abstract
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• Co₃O₄ and Co₃O₄/TiO₂ composites were synthesized and tested for electrochemical performance. • Porous Co₃O₄/TiO₂ delivered a high capacitance of 522 F/g, showing superior charge storage ability. • The composite showed excellent OER with 493 mV at 150 mA/cm² and a low Tafel slope of 42 mV/dec. • The composite achieved efficient HER with 366 mV at 50 mA/cm² and a Tafel slope of 191 mV/dec. • A prototype of best device powered a hygrometer for 24 min and 10 LEDs for 3 min.
Keywords:
Co₃O₄/TiO₂ composite
electrochemical performance
supercapacitor
oxygen evolution reaction
hydrogen evolution reaction
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5.7
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2.9W
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