In this work, the external and internal integration of supercapacitive features in the electrodes of microbial fuel cells (MFCs) has been investigated to improve their power performance. The external integration relies on the direct parallel connection with a tailored green supercapacitor. The latter was assembled involving only sustainable components within the core of the circular economy. Instead, the integration of internal supercapacitive features is based on the decoration of the bacterial anode with high surface area activated carbon obtained from the pyrolysis of agricultural waste biomass. Both strategies are capable to improve the maximum power of MFCs by almost one order of magnitude (from 0.6 mW to 6.7 mW and 6.5 mW for the external and internal supercapacitive microbial fuel cell, respectively). The internal integration of supercapacitive features in MFCs, on the other hand, enables higher discharge energy at higher current pulses (from 1 μWh to 2.4 μWh to 42 μWh, for the internal, external supercapacitive and bare MFC, respectively). Overall, these two strategies are capable to improve the performance of MFCs without affecting the cell volume.

Poli, F., Santoro, C., Soavi, F. (2023). Improving microbial fuel cells power output using internal and external optimized, tailored and totally green supercapacitor. JOURNAL OF POWER SOURCES, 564(30 April 2023) [10.1016/j.jpowsour.2023.232780].

Improving microbial fuel cells power output using internal and external optimized, tailored and totally green supercapacitor

Santoro C.
Secondo
;
2023

Abstract

In this work, the external and internal integration of supercapacitive features in the electrodes of microbial fuel cells (MFCs) has been investigated to improve their power performance. The external integration relies on the direct parallel connection with a tailored green supercapacitor. The latter was assembled involving only sustainable components within the core of the circular economy. Instead, the integration of internal supercapacitive features is based on the decoration of the bacterial anode with high surface area activated carbon obtained from the pyrolysis of agricultural waste biomass. Both strategies are capable to improve the maximum power of MFCs by almost one order of magnitude (from 0.6 mW to 6.7 mW and 6.5 mW for the external and internal supercapacitive microbial fuel cell, respectively). The internal integration of supercapacitive features in MFCs, on the other hand, enables higher discharge energy at higher current pulses (from 1 μWh to 2.4 μWh to 42 μWh, for the internal, external supercapacitive and bare MFC, respectively). Overall, these two strategies are capable to improve the performance of MFCs without affecting the cell volume.
Articolo in rivista - Articolo scientifico
Green supercapacitor; High power performance; Integration; Microbial fuel cell; Supercapative electrodes;
English
24-feb-2023
2023
564
30 April 2023
232780
reserved
Poli, F., Santoro, C., Soavi, F. (2023). Improving microbial fuel cells power output using internal and external optimized, tailored and totally green supercapacitor. JOURNAL OF POWER SOURCES, 564(30 April 2023) [10.1016/j.jpowsour.2023.232780].
File in questo prodotto:
File Dimensione Formato  
Poli-2023-JPS-VoR.pdf

Solo gestori archivio

Descrizione: Research Article
Tipologia di allegato: Publisher’s Version (Version of Record, VoR)
Licenza: Tutti i diritti riservati
Dimensione 6.48 MB
Formato Adobe PDF
6.48 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/414976
Citazioni
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 3
Social impact