Graphite/MnO2and MoS2Composites Used as Catalysts in the Oxygen Reduction Cathode of Microbial Fuel Cells

2017 ◽  
Vol 164 (14) ◽  
pp. E519-E524 ◽  
Author(s):  
Bolong Jiang ◽  
Thorben Muddemann ◽  
Ulrich Kunz ◽  
Leandro Gomes Silva e Silva ◽  
Hinnerk Bormann ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells

Polyelectrolyte–single wall carbon nanotube composite as an effective cathode catalyst for air-cathode microbial fuel cells

2014 ◽  
Vol 70 (10) ◽  
pp. 1610-1616 ◽  
Author(s):  
Huanan Wu ◽  
Min Lu ◽  
Lin Guo ◽  
Leonard Guan Hong Bay ◽  
Zheng Zhang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Reduction Process ◽  
Air Cathode ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Cathode Catalysts ◽  
Metal Free

Polyelectrolyte–single wall carbon nanotube (SCNT) composites are prepared by a solution-based method and used as metal-free cathode catalysts for oxygen reduction reaction (ORR) in air-cathode microbial fuel cells (MFCs). In this study, two types of polyelectrolytes, polydiallyldimethylammonium chloride (PDDA) and poly[bis(2-chloroethyl)ether-alt-1,3-bis[3-(dimethylamino)propyl]urea] (PEPU) are applied to decorate the SCNTs and the resulting catalysts exhibit remarkable catalytic ability toward ORR in MFC applications. The enhanced catalytic ability could be attributed to the positively charged quaternary ammonium sites of polyelectrolytes, which increase the oxygen affinity of SCNTs and reduce activation energy in the oxygen reduction process. It is also found that PEPU–SCNT composite-based MFCs show efficient performance with maximum power density of 270.1 mW m−2, comparable to MFCs with the benchmark Pt/C catalyst (375.3 mW m−2), while PDDA–SCNT composite-based MFCs produce 188.9 mW m−2. These results indicate that PEPU–SCNT and PDDA–SCNT catalysts are promising candidates as metal-free cathode catalysts for ORR in MFCs and could facilitate MFC scaling up and commercialization.

MnxOy- based cathodes for oxygen reduction reaction catalysis in microbial fuel cells

2019 ◽  
Vol 44 (9) ◽  
pp. 4432-4441 ◽  
Author(s):  
A. Chiodoni ◽  
G.P. Salvador ◽  
G. Massaglia ◽  
L. Delmondo ◽  
J.A. Muñoz-Tabares ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Reduction Reaction
Sign in / Sign up

Export Citation Format

Share Document