Work

Sustainable ZnCl2-activated cellulose-derived carbons enhanced with graphene as electrocatalysts in ORR

Year: 2025

Type: article

Abstract: In this study, we report on the sustainable synthesis of novel electrocatalysts using ZnCl 2 -activated microcrystalline cellulose (MCC) as a renewable carbon precursor. Zinc chloride acts simultaneously as a chemical activator and dehydration agent, facilitating the formation of highly porous carbon structures with a large surface area (up to 2700 m 2 /g) and abundant defect sites or enhanced active centers, exhibiting high electrocatalytic activity in the oxygen reduction reaction (ORR). Furthermore, the addition of graphene nanoplatelets (GNPs) improved the conductivity and overall electrochemical activity of the synthesised materials, demonstrating their potential for energy storage applications such as metal-free electrocatalysts in fuel cells or metal-air batteries. This approach adds value to biomass waste and supports the development of green, low-cost alternatives to platinum-based catalysts, providing a promising pathway toward practical and sustainable energy conversion technologies

Source: Applied Surface Science

DOI: 10.1016/j.apsusc.2025.165206

Authors: Aleksandra Ścigała, Piotr Madajski, Andrzej Olejniczak, Sonnur Kurtuluş, Paweł Binkowski, Piotr Kamedulski

Institution: Nicolaus Copernicus University

Language: English

Topic: Electrocatalysts for Energy Conversion

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDGs: Affordable and clean energy, Responsible consumption and production, Climate action

Open Access status: hybrid

Estimated APC paid: $3,930