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Charcoal to graphene: a sustainable route via electrochemical exfoliation
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DOI：10.1007/s42823-026-01108-4.png)
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Abstract
En 中文
Producing high-quality pristine graphene remains a major bottleneck for its widespread technological adoption due to the cost and limitations of conventional synthesis methods. Here, we emphasize biomass-derived charcoal as a sustainable, low-cost, and readily available carbon precursor, offering a practical alternative to traditional graphite sources. We demonstrate a simple and economical approach for graphene production involving charcoal pretreatment, controlled electrochemical exfoliation, surfactant-assisted sonication, and filtration. Comprehensive characterization using HRTEM, FESEM, EDS, XRD, XPS, AFM, FTIR and Raman spectroscopy confirms the formation of few-layer and single-layer graphene with structural properties comparable to commercial-grade materials. Electrochemical evaluation on graphene-modified screen-printed electrodes shows a 105% increase in electron mobility and a 17% reduction in charge transfer resistance, indicating enhanced electrical performance. These results highlight the potential of charcoal as a renewable carbon feedstock and establish a cost-effective, environmentally friendly pathway for graphene production, enabling applications in energy storage, sensing, and next-generation electronic devices.
Keywords:
Carbon
Nanomaterials
Charcoal
Graphene
Electrode
Electrochemical exfoliation
Cyclic Voltammetry
Electrodeposition
Journal
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1.5K
Citations:
4.2K
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