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

Sulfur-Doped Carbon Aerogel as a Metal-Free Oxygen Reduction Catalyst

ChemCatChem ◽  
2015 ◽  
Vol 7 (18) ◽  
pp. 2924-2931 ◽  
Author(s):  
Mykola Seredych ◽  
Krisztina László ◽  
Teresa J. Bandosz
Keyword(s):  
Oxygen Reduction ◽  
Carbon Aerogel ◽  
Free Oxygen ◽  
Metal Free ◽  
Oxygen Reduction Catalyst

A Durable Platinum Group Metal-Free Oxygen Reduction Catalyst for Polymer Electrolyte Fuel Cells

2021 ◽  
Vol MA2021-02 (39) ◽  
pp. 1144-1144
Author(s):  
Hanguang Zhang ◽  
Hoon T. Chung ◽  
Ulises Martinez ◽  
Edward F. Holby ◽  
Piotr Zelenay
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Polymer Electrolyte ◽  
Platinum Group Metal ◽  
Polymer Electrolyte Fuel Cells ◽  
Free Oxygen ◽  
Metal Free ◽  
Group Metal ◽  
Platinum Group ◽  
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.

A N, P Dual‐Doped Carbon with High Porosity as an Advanced Metal‐Free Oxygen Reduction Catalyst

2019 ◽  
Vol 6 (14) ◽  
pp. 1900592 ◽  
Author(s):  
Ya‐Nan Sun ◽  
Ming‐Li Zhang ◽  
Li Zhao ◽  
Zhu‐Yin Sui ◽  
Zhen‐Yu Sun ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
High Porosity ◽  
Free Oxygen ◽  
Metal Free ◽  
Oxygen Reduction Catalyst
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