Online Response Performance and Optimization of Sediment Microbial Fuel Cell‐Based Sensors to pH
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Le résumé fourni par la source
Sediment microbial fuel cells (SMFCs) offer a promising approach for in situ and online pH monitoring, and enhancing their sensitivity is critical for promoting practical application. In this study, the sensors with different anode areas (4, 18, and 81 cm2) and external resistance (50, 1 k, 20 kΩ, and open‐circuit) were constructed in flooded soil. Buffer solutions with pH values ranging from 2.2 to 11.8 were added to the surface of the cathode to simulate acidic and alkaline contaminations. Results showed that the addition of acidic buffer solutions triggered voltage peaks whereas alkaline solutions caused voltage drops. The highest sensitivity was observed with a 20 kΩ resistor and a larger anode area than 4 cm2. The two‐way ANOVA confirmed that the factors of the anode area and external resistance were significant (p < 0.001) for the sensitivity. The repeated contaminations did not alter pH value of soil where the anode was buried, and electrogenic bacteria were enriched on the anode after the operation of the SMFC sensors. As external resistance increases, the relative abundance of exoelectrogenic bacteria‐associated genera (EB‐genera) to total bacteria progressively decreased. Clostridium, Thermincola, Anaeromyxobacter, Acinetobacter, and Desulfitobacterium were the most abundant EB‐genera on the anode.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Online Response Performance and Optimization of Sediment Microbial Fuel Cell‐Based Sensors to pH
- Date Crossref
- 01/07/2025
- Éditeur
- Wiley
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Nanjing Normal University pays non établi dans la noticeUniversité ou école supérieure
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Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application pays non établi dans la noticeStructure de recherche
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School of Geography Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control pays non établi dans la noticeUniversité ou école supérieure
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College of Zhongbei pays non établi dans la noticeUniversité ou école supérieure
Nanjing Normal University, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application et Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control — School of Geography, avec 1 autre affiliation.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.