Polyelectrolyte Functionalized Carbon Nanotubes as Efficient Metal-free Electrocatalysts for Oxygen Reduction

2011 ◽  
Vol 133 (14) ◽  
pp. 5182-5185 ◽  
Author(s):  
Shuangyin Wang ◽  
Dingshan Yu ◽  
Liming Dai
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction ◽  
Functionalized Carbon Nanotubes ◽  
Metal Free

Fe, Co, N-functionalized carbon nanotubes in situ grown on 3D porous N-doped carbon foams as a noble metal-free catalyst for oxygen reduction

2015 ◽  
Vol 3 (7) ◽  
pp. 3559-3567 ◽  
Author(s):  
Ruizhong Zhang ◽  
Shuijian He ◽  
Yizhong Lu ◽  
Wei Chen
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction ◽  
Noble Metal ◽  
Carbon Foam ◽  
Functionalized Carbon Nanotubes ◽  
Metal Free ◽  
Electrocatalytic Performance ◽  
Carbon Foams

3D Fe, Co, N-functionalized carbon nanotubes grown on carbon foam were fabricated and the hybrid exhibited high ORR electrocatalytic performance.

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.

Boron-Doped Carbon Nanotubes as Metal-Free Electrocatalysts for the Oxygen Reduction Reaction

2011 ◽  
Vol 123 (31) ◽  
pp. 7270-7273 ◽  
Author(s):  
Lijun Yang ◽  
Shujuan Jiang ◽  
Yu Zhao ◽  
Lei Zhu ◽  
Sheng Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Metal Free ◽  
Boron Doped
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