Hybridization of carbon nanotube tissue and MnO2 as a generic advanced air cathode in metal–air batteries

2021 ◽  
Vol 514 ◽  
pp. 230597
Author(s):  
Natasha Ronith Levy ◽  
Polina Tereshchuk ◽  
Amir Natan ◽  
Ronja Haas ◽  
Daniel Schröder ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Air Cathode

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.

Manganese–polypyrrole–carbon nanotube, a new oxygen reduction catalyst for air-cathode microbial fuel cells

2013 ◽  
Vol 221 ◽  
pp. 381-386 ◽  
Author(s):  
Min Lu ◽  
Lin Guo ◽  
Shailesh Kharkwal ◽  
Hua’nan Wu ◽  
How Yong Ng ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Air Cathode ◽  
Oxygen Reduction Catalyst

High capacity Na–O2 batteries with carbon nanotube paper as binder-free air cathode

2014 ◽  
Vol 251 ◽  
pp. 466-469 ◽  
Author(s):  
Zelang Jian ◽  
Yong Chen ◽  
Fujun Li ◽  
Tao Zhang ◽  
Chang Liu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Capacity ◽  
Air Cathode ◽  
Free Air ◽  
Binder Free

scholarly journals Characterization of Carbon Nanotube/Graphene on Carbon Cloth as an Electrode for Air-Cathode Microbial Fuel Cells

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Hung-Yin Tsai ◽  
Wei-Hsuan Hsu ◽  
Ying-Chen Huang
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Microbial Fuel Cells ◽  
Electrode Materials ◽  
Modified Electrodes ◽  
Internal Resistance ◽  
Superior Performance ◽  
Carbon Cloth ◽  
Air Cathode ◽  
Microbial Decomposition

Microbial fuel cells (MFCs), which can generate low-pollution power through microbial decomposition, have become a potentially important technology with applications in environmental protection and energy recovery. The electrode materials used in MFCs are crucial determinants of their capacity to generate electricity. In this study, we investigate the performance of using carbon nanotube (CNT) and graphene-modified carbon-cloth electrodes in a single-chamber MFC. We develop a process for fabricating carbon-based modified electrodes andEscherichia coliHB101 in an air-cathode MFC. The results show that the power density of MFCs can be improved by applying a coat of either graphene or CNT to a carbon-cloth electrode, and the graphene-modified electrode exhibits superior performance. In addition, the enhanced performance of anodic modification by CNT or graphene was greater than that of cathodic modification. The internal resistance decreased from 377 kΩ for normal electrodes to 5.6 kΩ for both electrodes modified by graphene with a cathodic catalyst. Using the modified electrodes in air-cathode MFCs can enhance the performance of power generation and reduce the associated costs.

Self-supported N-doped CNT arrays for flexible Zn–air batteries

2020 ◽  
Vol 8 (35) ◽  
pp. 18162-18172 ◽  
Author(s):  
Lina Liu ◽  
Xiao Zhang ◽  
Feng Yan ◽  
Bo Geng ◽  
Chunling Zhu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Solid State ◽  
Carbon Fiber ◽  
Nanotube Arrays ◽  
Air Cathode ◽  
Carbon Nanotube Arrays ◽  
Carbon Fiber Cloth ◽  
Cnt Arrays ◽  
Zinc Air Batteries

N-Doped carbon nanotube arrays with encapsulated CoFe nanoparticles were directly grown on carbon fiber cloth as a self-supported air-cathode for flexible solid-state zinc–air batteries which can work even under extreme bending conditions.

Carbon Nanotube and Graphene Device Physics

2009 ◽  
Author(s):  
H.-S. Philip Wong ◽  
Deji Akinwande
Keyword(s):  
Carbon Nanotube ◽  
Device Physics
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