Efficient electrocatalytic oxygen reduction over metal free-nitrogen doped carbon nanocapsules

2011 ◽  
Vol 47 (15) ◽  
pp. 4463 ◽  
Author(s):  
Sangaraju Shanmugam ◽  
Tetsuya Osaka
Keyword(s):  
Oxygen Reduction ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Electrocatalytic Oxygen Reduction ◽  
Carbon Nanocapsules ◽  
Nitrogen Doped Carbon

Biomass chitosan derived cobalt/nitrogen doped carbon nanotubes for the electrocatalytic oxygen reduction reaction

2018 ◽  
Vol 6 (14) ◽  
pp. 5740-5745 ◽  
Author(s):  
Yijie Zhang ◽  
Luhua Lu ◽  
Si Zhang ◽  
Zaozao Lv ◽  
Dantong Yang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Oxygen Reduction Reaction Activity ◽  
Nitrogen Doped ◽  
Electrocatalytic Oxygen Reduction ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Scalable Synthesis ◽  
Nitrogen Doped Carbon

Biomass chitosan was used for the scalable synthesis of cobalt/nitrogen doped carbon nanotube composites with impressive oxygen reduction reaction activity and stability.

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 Harnessing inherently hierarchical microstructures of plant biomass to construct three-dimensional nanoporous nitrogen-doped carbons as efficient and durable oxygen reduction electrocatalysts

RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40326-40335 ◽  
Author(s):  
Hongqu Tang ◽  
Shilin Wei ◽  
Chuangchuang Yang ◽  
Peiyao Bai ◽  
Jiawei Qi ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Plant Biomass ◽  
Three Dimensional ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Nitrogen Doped Carbon ◽  
Carbon Based

Naturally hierarchical microstructures of E. tirucalli are utilized to prepare a nanoporous nitrogen-doped carbon-based metal-free ORR electrocatalyst that is superior to the benchmark Pt/C catalyst in catalytic activity and durability.

Metal-Free Ketjenblack Incorporated Nitrogen-Doped Carbon Sheets Derived from Gelatin as Oxygen Reduction Catalysts

Nano Letters ◽  
2014 ◽  
Vol 14 (4) ◽  
pp. 1870-1876 ◽  
Author(s):  
Gyutae Nam ◽  
Joohyuk Park ◽  
Sun Tai Kim ◽  
Dong-bin Shin ◽  
Noejung Park ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Oxygen Reduction Catalysts ◽  
Nitrogen Doped Carbon ◽  
Reduction Catalysts ◽  
Incorporated Nitrogen
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