期刊
CATALYSTS
卷 12, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/catal12080894
关键词
biomass; MFCs; power output; carbon anode; nanocomposite; porous anode; exoelectrogens
资金
- Innovation Program for Carbon Neutralization of Jiangsu Province [BK20220003]
This review article focuses on the design and application of biomass-derived carbon anodes in microbial fuel cells (MFCs). Constructing carbon anodes from biomass has the advantage of improving the electrocatalytic behavior of the anodes. The article introduces different types of biomass-derived carbon anodes and analyzes their morphologies, characterizations, and carbonization processes. Finally, the drawbacks and prospects for biomass-derived carbon anodes are discussed.
Although microbial fuel cells (MFCs) have been developed over the past decade, they still have a low power production bottleneck for practical engineering due to the ineffective interfacial bioelectrochemical reaction between exoelectrogens and anode surfaces using traditional carbonaceous materials. Constructing anodes from biomass is an effective strategy to tackle the current challenges and improve the efficiency of MFCs. The advantage features of these materials come from the well-decorated aspect with an enriched functional group, the turbostratic nature, and porous structure, which is important to promote the electrocatalytic behavior of anodes in MFCs. In this review article, the three designs of biomass-derived carbon anodes based on their final products (i.e., biomass-derived nanocomposite carbons for anode surface modification, biomass-derived free-standing three-dimensional carbon anodes, and biomass-derived carbons for hybrid structured anodes) are highlighted. Next, the most frequently obtained carbon anode morphologies, characterizations, and the carbonization processes of biomass-derived MFC anodes were systematically reviewed. To conclude, the drawbacks and prospects for biomass-derived carbon anodes are suggested.
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