Carbon powder from sugarcane bagasse: Controlled synthesis for on-demand H2O2 electrogeneration

D.C. Sperandio, J.C. Lourenço, B. Nogueira, M.S. Kronka, G.V. Fortunato, A.F. Siqueira, A. de Siervo, L.A. Rodrigues, M.A. Rodrigo, M.R.V. Lanza and R.S. Rocha

Renewable Energy, 2025, vol. 244, issue C

Abstract: In this study, we developed a green synthesis route to produce a conductive carbon material selective towards H2O2 electrogeneration, utilizing sugarcane bagasse (SCB), an abundant byproduct of the sugar and ethanol industries, as the feedstock. Through a tailored process involving impregnation with phosphoric acid and thermal activation, we synthesized amorphous porous carbon with outstanding properties - a surface area above 1500 m2g-1 and adjustable porosity from meso to micropores. The application of the optimized carbon material in the Gas Diffusion Electrode (GDE) yielded an H2O2 concentration of up to 1900 mg L−1 in 120 min of electrolysis, even at practical current densities of up to 160 mA cm−2. The findings of this study point to the suitability of SCB-derived carbon material as a sustainable and cost-effective alternative to the traditional petrol-derived carbon materials typically employed in H2O2 electrogeneration; clearly, these findings have promising implications for environmentally conscious practices.

Keywords: Sugarcane bagasse; Carbon; H2O2 production; Gas diffusion electrode; Chemical activation (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:244:y:2025:i:c:s0960148125003775

DOI: 10.1016/j.renene.2025.122715

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