Nitrogen-doped activated carbon as metal-free oxygen reduction catalyst for cost-effective rolling-pressed air-cathode in microbial fuel cells

Fuel ◽  
2018 ◽  
Vol 223 ◽  
pp. 422-430 ◽  
Author(s):  
Xiaoyu Tian ◽  
Minghua Zhou ◽  
Ming Li ◽  
Chaolin Tan ◽  
Liang Liang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Activated Carbon ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Cost Effective ◽  
Air Cathode ◽  
Free Oxygen ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Oxygen Reduction Catalyst

scholarly journals Nitrogen and phosphorus co-doped carbon modified activated carbon as an efficient oxygen reduction catalyst for microbial fuel cells

RSC Advances ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 848-855 ◽  
Author(s):  
Kang Lv ◽  
Hua Zhang ◽  
Shuiliang Chen
Keyword(s):  
Fuel Cells ◽  
Activated Carbon ◽  
Oxygen Reduction ◽  
Electrocatalytic Activity ◽  
Microbial Fuel Cells ◽  
Air Cathode ◽  
Nitrogen And Phosphorus ◽  
Modified Activated Carbon ◽  
Oxygen Reduction Catalyst ◽  
Co Doped

Nitrogen and phosphorus co-doped carbon modified activated carbon shows decreased ORR over-potential, thus enhanced ORR electrocatalytic activity in the air-cathode of microbial fuel cells compared to pristine AC.

Nitrogen-doped biochar derived from watermelon rind as oxygen reduction catalyst in air cathode microbial fuel cells

2019 ◽  
Vol 242 ◽  
pp. 516-525 ◽  
Author(s):  
Kengqiang Zhong ◽  
Meng Li ◽  
Yue Yang ◽  
Hongguo Zhang ◽  
Bopeng Zhang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Air Cathode ◽  
Nitrogen Doped ◽  
Watermelon Rind ◽  
Oxygen Reduction Catalyst

KOH activated N-doped novel carbon aerogel as efficient metal-free oxygen reduction catalyst for microbial fuel cells

2018 ◽  
Vol 348 ◽  
pp. 775-785 ◽  
Author(s):  
Xiaoyu Tian ◽  
Minghua Zhou ◽  
Chaolin Tan ◽  
Ming Li ◽  
Liang Liang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Carbon Aerogel ◽  
Free Oxygen ◽  
Metal Free ◽  
Oxygen Reduction Catalyst

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.

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