A review of recent advances in electrode materials for emerging bioelectrochemical systems: From biofilm-bearing anodes to specialized cathodes
| Autor: | Alicia A. Mier, Adriana Longoria, Laura Verea, M. Mejía-López, Dulce María Arias, P.J. Sebastian, Hugo Olvera-Vargas |
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| Rok vydání: | 2021 |
| Předmět: |
Environmental Engineering
Materials science Microbial fuel cell Bioelectric Energy Sources Health Toxicology and Mutagenesis 0208 environmental biotechnology Population Nanotechnology 02 engineering and technology 010501 environmental sciences Wastewater 01 natural sciences Desalination Electrolysis law.invention Electricity law Microbial electrolysis cell Environmental Chemistry education Electrodes 0105 earth and related environmental sciences education.field_of_study Public Health Environmental and Occupational Health Biofilm General Medicine General Chemistry Pollution Cathode 020801 environmental engineering Anode Biofilms |
| Zdroj: | Chemosphere. 283 |
| ISSN: | 1879-1298 |
| Popis: | Bioelectrochemical systems (BES), mainly microbial fuel cells (MEC) and microbial electrolysis cells (MFC), are unique biosystems that use electroactive bacteria (EAB) to produce electrons in the form of electric energy for different applications. BES have attracted increasing attention as a sustainable, low-cost, and neutral-carbon option for energy production, wastewater treatment, and biosynthesis. Complex interactions between EAB and the electrode materials play a crucial role in system performance and scalability. The electron transfer processes from the EAB to the anode surface or from the cathode surface to the EAB have been the object of numerous investigations in BES, and the development of new materials to maximize energy production and overall performance has been a hot topic in the last years. The present review paper discusses the advances on innovative electrode materials for emerging BES, which include MEC coupled to anaerobic digestion (MEC-AD), Microbial Desalination Cells (MDC), plant-MFC (P-MFC), constructed wetlands-MFC (CW-MFC), and microbial electro-Fenton (BEF). Detailed insights on innovative electrode modification strategies to improve the electrode transfer kinetics on each emerging BES are provided. The effect of materials on microbial population is also discussed in this review. Furthermore, the challenges and opportunities for materials scientists and engineers working in BES are presented at the end of this work aiming at scaling up and industrialization of such versatile systems. |
| Databáze: | OpenAIRE |
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