Nitrogen-Doped Carbon Material As the Electrocatalyst for Oxygen Reduction Reaction in Rechargeable Zinc-Air Flow Batteries

2020 ◽  
Vol MA2020-01 (3) ◽  
pp. 502-502
Author(s):  
Fatemeh Shakeri Hosseinabad ◽  
Samantha Luong ◽  
Mohammad Javad Parnian ◽  
Ashutosh Kumar Singh ◽  
Viola Ingrid Birss ◽  
...  
Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1460
Author(s):  
Aleksandrs Volperts ◽  
Ance Plavniece ◽  
Kätlin Kaare ◽  
Galina Dobele ◽  
Aivars Zhurinsh ◽  
...  

The goal of this research was to synthesize activated nitrogen-doped nanocarbons with high specific surface area and adjustable pore size distribution using wood charcoal as a raw material. The resulting carbon materials were tested for possible application as oxygen reduction reaction catalysts in alkaline media. Activated carbons were obtained using a thermochemical activation method with NaOH. Nitrogen was introduced into activated carbons using dicyandiamide solution. It was demonstrated that the content of introduced nitrogen depends on oxygen content in the structure of the activated carbon. The oxygen reduction reaction activity of the activated and nitrogen-doped carbon material was comparable with a commercial 20% Pt/C catalyst. Electrocatalytic properties of the synthesized N-doped wood-derived carbon catalysts may be associated with the highly developed surface area, specific ratio of micro- and mesopores, as well as the high percentage of pyridinic nitrogen.


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