This work reports a new procedure for low-cost Microbial Fuel Cells (MFCs) manufacture, based on the optimization of the most expensive MFC components: separator and cathode. For the first time, tubular MFC clay separators were fabricated by slip-casting, which allowed to reach the lowest thickness reported to date (1.55 mm), with a minimum cost (0.43 €·m−2). On the other hand, a novel cathode was fabricated by using commercial CuO based catalyst and Carbon Mesh (CM). The new cathode showed a power density of 110 mW m−2, more than 40% higher than other Cu based cathodes for Ceramic-MFCs (C-MFCs) studied in the literature. The proposed cell was operated for more than 6 months, with a power reduction of 29.4%, contrasting with Pt-cathodes (deactivation of almost 50% during the first month). A deep economic analysis showed a cost of 0.51 €/cell when energetic optimization and a semi-industrial production were considered, one of the lowest for C-MFCs ever reported.

Comprehensive characterization of a cost-effective microbial fuel cell with Pt-free catalyst cathode and slip-casted ceramic membrane

Laura Mais;Michele Mascia;Annalisa Vacca;Simonetta Palmas
2021-01-01

Abstract

This work reports a new procedure for low-cost Microbial Fuel Cells (MFCs) manufacture, based on the optimization of the most expensive MFC components: separator and cathode. For the first time, tubular MFC clay separators were fabricated by slip-casting, which allowed to reach the lowest thickness reported to date (1.55 mm), with a minimum cost (0.43 €·m−2). On the other hand, a novel cathode was fabricated by using commercial CuO based catalyst and Carbon Mesh (CM). The new cathode showed a power density of 110 mW m−2, more than 40% higher than other Cu based cathodes for Ceramic-MFCs (C-MFCs) studied in the literature. The proposed cell was operated for more than 6 months, with a power reduction of 29.4%, contrasting with Pt-cathodes (deactivation of almost 50% during the first month). A deep economic analysis showed a cost of 0.51 €/cell when energetic optimization and a semi-industrial production were considered, one of the lowest for C-MFCs ever reported.
2021
Low-cost microbial fuel cell; Ceramic separator; Slip-casting; Pt-free cathode; Copper oxide catalyst
File in questo prodotto:
File Dimensione Formato  
Jesus3.pdf

Solo gestori archivio

Descrizione: articolo completo
Tipologia: versione editoriale
Dimensione 2.81 MB
Formato Adobe PDF
2.81 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/11584/309209
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 21
  • ???jsp.display-item.citation.isi??? 17
social impact