scholarly journals Nitrogen-doped porous activated carbon derived from cocoon silk as a highly efficient metal-free electrocatalyst for the oxygen reduction reaction

RSC Advances ◽  
2017 ◽  
Vol 7 (22) ◽  
pp. 13383-13389 ◽  
Author(s):  
Peng Fu ◽  
Lihua Zhou ◽  
Lihua Sun ◽  
Baohua Huang ◽  
Yong Yuan
Keyword(s):  
Heat Treatment ◽  
Catalytic Activity ◽  
Activated Carbon ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Chemical Activation ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Porous Activated Carbon

Nitrogen-doped porous activated carbon (PAC) has been fabricated via a facile heat-treatment and chemical activation of cocoon silk. The prepared PAC exhibits excellent ORR catalytic activity.

Engineering Mn Atomic Sites in Multi-Dimensional Nitrogen-Doped Carbon for Highly Efficient Oxygen Reduction Reaction

2022 ◽  
Author(s):  
Huixin Ma ◽  
Daijie Deng ◽  
Honghui Zhang ◽  
Feng Chen ◽  
Junchao Qian ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Single Atom ◽  
Two Dimensional ◽  
One Dimensional ◽  
Nitrogen Doped ◽  
Half Wave ◽  
Nitrogen Doped Carbon

Nitrogen-coordinated single-atom manganese in multi-dimensional nitrogen-doped carbon electrocatalysts (Mn-NC) was successful constructed by combing two-dimensional nanosheets and one-dimensional nanofibers. The Mn-NC exhibited excellent oxygen reduction reaction catalytic activity with half-wave...

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 Carbonisation temperature dependence of electrochemical activity of nitrogen-doped carbon fibres from electrospinning as air-cathodes for aqueous-alkaline metal–air batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (47) ◽  
pp. 27231-27241
Author(s):  
Markus Gehring ◽  
Hermann Tempel ◽  
Alexandre Merlen ◽  
Roland Schierholz ◽  
Rüdiger-A. Eichel ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Temperature Dependence ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Carbon Fibres ◽  
Alkaline Metal ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon ◽  
Poly Acrylonitrile

Nitrogen-doped carbon fibres derived from electrospun poly-acrylonitrile display an optimum catalytic activity towards the oxygen reduction reaction in aqueous-alkaline metal–air batteries, when carbonised under argon at 850 °C.

Nitrogen doped amorphous carbon as metal free electrocatalyst for oxygen reduction reaction

2017 ◽  
Vol 42 (2) ◽  
pp. 876-885 ◽  
Author(s):  
Linmin Cao ◽  
Zhipeng Lin ◽  
Jilin Huang ◽  
Xiang Yu ◽  
Xiaoxian Wu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Amorphous Carbon ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Metal Free

scholarly journals Shale-oil-based nitrogen-doped porous carbon as efficient metal-free electrocatalyst for oxygen reduction reaction

2020 ◽  
Vol 146 ◽  
pp. 106131
Author(s):  
Xiaobo Chen ◽  
Zhiqiang Li ◽  
Rumeng Qin ◽  
Shengjie Shan ◽  
Yibin Liu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Reduction Reaction ◽  
Shale Oil ◽  
Nitrogen Doped ◽  
Metal Free

A nitrogen and boron co-doped metal-free carbon electrocatalyst for an efficient oxygen reduction reaction

2018 ◽  
Vol 5 (11) ◽  
pp. 2985-2991 ◽  
Author(s):  
Yunjie Zhou ◽  
Yue Sun ◽  
Huibo Wang ◽  
Cheng Zhu ◽  
Jin Gao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Carbon Material ◽  
Reduction Reaction ◽  
Free Carbon ◽  
Metal Free ◽  
Co Doped

A N, B co-doped carbon material exhibits excellent catalytic activity for an oxygen reduction reaction.

scholarly journals Noble-Metal-Free Iron Nitride/Nitrogen-Doped Graphene Composite for the Oxygen Reduction Reaction

ACS Omega ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 130-139 ◽  
Author(s):  
Tamás Varga ◽  
Lívia Vásárhelyi ◽  
Gergő Ballai ◽  
Henrik Haspel ◽  
Albert Oszkó ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Noble Metal ◽  
Reduction Reaction ◽  
Iron Nitride ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Graphene Composite ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene
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