Highly nitrogen doped carbon nanosheets as an efficient electrocatalyst for the oxygen reduction reaction

2015 ◽  
Vol 51 (59) ◽  
pp. 11791-11794 ◽  
Author(s):  
Lei Wang ◽  
Shuo Dou ◽  
Jiantie Xu ◽  
Hua Kun Liu ◽  
Shuangyin Wang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Stability ◽  
Reaction Pathway ◽  
Reduction Reaction ◽  
Disodium Salt ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Nitrogen Doped Carbon

In this work, highly nitrogen doped carbon nanosheets (HNCNSs) have been successfully prepared by annealing EDTA calcium disodium salt. They exhibited a direct four-electron reaction pathway and high stability as an efficient metal-free catalyst for the oxygen reduction reaction.

Nitrogen-Doped Carbon Nanosheets with Size-Defined Mesopores as Highly Efficient Metal-Free Catalyst for the Oxygen Reduction Reaction

2014 ◽  
Vol 126 (6) ◽  
pp. 1596-1600 ◽  
Author(s):  
Wei Wei ◽  
Haiwei Liang ◽  
Khaled Parvez ◽  
Xiaodong Zhuang ◽  
Xinliang Feng ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Highly Efficient ◽  
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.

FeCo nanoalloys embedded in nitrogen-doped carbon nanosheets/bamboo-like carbon nanotubes for the oxygen reduction reaction

2021 ◽  
Vol 8 (1) ◽  
pp. 109-121
Author(s):  
Xiao-Wei Song ◽  
Shuwei Zhang ◽  
Haihong Zhong ◽  
Yuan Gao ◽  
Luis A. Estudillo-Wong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Molar Ratio ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Initial Molar Ratio ◽  
Nitrogen Doped Carbon

Herein, FeCo bimetallic organic frameworks (MOFs) with different compositions were fabricated by controlling the initial molar ratio of Fe3+/Co2+ ions.

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