What question did this study set out to answer?

This research aims to investigate the performance of CaO@AC nanocomposite in energy storage and pollutant adsorption.

May 2, 2026RSC Advances0 citationsOpen Access

Engineering CaO@activated carbon nanocomposite for simultaneous energy storage and pollutant adsorption

ANArsh E NoorGovernment College University, Faisalabad SAShafaqat AliGovernment College University, Faisalabad AAAwais AhmadUniversity of Lahore

Key Points

This research aims to investigate the performance of CaO@AC nanocomposite in energy storage and pollutant adsorption.
Evaluated the capacitance retention after 5000 cycles in 3 M KOH.
Assessed the cyclic voltammetry (CV) area of the CaO@AC nanocomposite compared to activated carbon (AC) electrode.
CaO@AC nanocomposite retained approximately 99% of its initial capacitance after 5000 cycles.
Demonstrated an enlarged CV area, indicating enhanced electron adsorption capacity compared to the AC electrode.

Abstract

in 3 M KOH and retained approximately 99% of its initial capacitance after 5000 cycles. Additionally, the doped CaO@AC nanocomposite exhibited an enlarged CV area compared with the AC electrode, indicating an enhanced electron adsorption capacity due to the surface functionalities of the CaO@AC matrix. This work paves the way for the further exploration of the innovative CaO@AC bifunctional catalyst as a promising candidate for sustainable development.

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