A hybrid of titanium nitride and nitrogen-doped amorphous carbon supported on SiC as a noble metal-free electrocatalyst for oxygen reduction reaction

2015 ◽  
Vol 51 (13) ◽  
pp. 2625-2628 ◽  
Author(s):  
Yingdan Jia ◽  
Yanhui Wang ◽  
Liang Dong ◽  
Junjie Huang ◽  
Yan Zhang ◽  
...  

The NC–TiN/SiC electrocatalyst exhibits excellent electrocatalytic activity toward oxygen reduction reactions, outstanding stability and strong methanol resistance.

2017 ◽  
Vol 42 (2) ◽  
pp. 876-885 ◽  
Author(s):  
Linmin Cao ◽  
Zhipeng Lin ◽  
Jilin Huang ◽  
Xiang Yu ◽  
Xiaoxian Wu ◽  
...  

ACS Omega ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 130-139 ◽  
Author(s):  
Tamás Varga ◽  
Lívia Vásárhelyi ◽  
Gergő Ballai ◽  
Henrik Haspel ◽  
Albert Oszkó ◽  
...  

2015 ◽  
Vol 3 (3) ◽  
pp. 1058-1067 ◽  
Author(s):  
Xiangjie Bo ◽  
Mian Li ◽  
Ce Han ◽  
Yufan Zhang ◽  
Anaclet Nsabimana ◽  
...  

Porous Fe/N/GR materials are highly active, cheap, and selective noble metal-free electrocatalysts for the oxygen reduction reaction in both alkaline solutions and acidic solutions.


2019 ◽  
Vol 44 (45) ◽  
pp. 24922-24933 ◽  
Author(s):  
Sagar B. Ingavale ◽  
Indrajit Patil ◽  
Haridas Parse ◽  
Divya Catherin Sesu ◽  
Phiralang Marbaniang ◽  
...  

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 864 ◽  
Author(s):  
Zhenhua Yao ◽  
Ruiyang Fan ◽  
Wangyang Ji ◽  
Tingxuan Yan ◽  
Maocong Hu

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.


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