Nitrogen-doped carbon nanotubes as efficient and durable metal-free cathodic catalysts for oxygen reduction in microbial fuel cells

2011 ◽  
Vol 4 (5) ◽  
pp. 1892 ◽  
Author(s):  
Leiyu Feng ◽  
Yuanyuan Yan ◽  
Yinguang Chen ◽  
Lijun Wang
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cells ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Nitrogen Doped Carbon

scholarly journals N8− Polynitrogen Stabilized on Nitrogen-Doped Carbon Nanotubes as an Efficient Electrocatalyst for Oxygen Reduction Reaction

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 864 ◽  
Author(s):  
Zhenhua Yao ◽  
Ruiyang Fan ◽  
Wangyang Ji ◽  
Tingxuan Yan ◽  
Maocong Hu
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Rotating Disk ◽  
Reduction Reaction ◽  
Rotating Disk Electrode ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Temperature Programmed ◽  
Nitrogen Doped Carbon

In this work, non-traditional metal-free polynitrogen chain N8− deposited on a nitrogen-doped carbon nanotubes (PN-NCNT) catalyst was successfully synthesized by a facile cyclic voltammetry (CV) approach, which was further tested in an oxygen reduction reaction (ORR). The formation of PN on NCNT was confirmed by attenuated total reflectance–Fourier transform infrared spectroscopy (ATR-FTIR) and Raman spectroscopy. Partial positive charge of carbon within NCNT facilitated electron transfer and accordingly induced the formation of more PN species compared to CNT substrate as determined by temperature-programmed decomposition (TPD). Rotating disk electrode (RDE) measurements suggested that a higher current density was achieved over PN-NCNT than that on PN-CNT catalyst, which can be attributed to formation of the larger amount of N8− on NCNT. Kinetic study suggested a four-electron pathway mechanism over PN-NCNT. Moreover, it showed long stability and good methanol tolerance, which indicates its great potential application. This work provides insights on designing and synthesizing non-traditional metal-free catalysts for ORR in fuel cells.

scholarly journals Green-Synthesized Nitrogen-Doped Carbon-Based Aerogels as Environmentally Friendly Catalysts for Oxygen Reduction in Microbial Fuel Cells

2018 ◽  
Vol 6 (6) ◽  
pp. 1052-1059 ◽  
Author(s):  
Gian Paolo Salvador ◽  
Matteo Gerosa ◽  
Adriano Sacco ◽  
Nadia Garino ◽  
Micaela Castellino ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Environmentally Friendly ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon ◽  
Carbon Based
Sign in / Sign up

Export Citation Format

Share Document