A facile synthesis of porous N-doped carbon with hybridization of Fe3C nanoparticle-encased CNTs for an advanced oxygen reduction reaction electrocatalyst

2018 ◽  
Vol 5 (10) ◽  
pp. 2546-2553 ◽  
Author(s):  
Pingping Zhao ◽  
Hanqiu Nie ◽  
Jiahao Yu ◽  
Jianbo Wang ◽  
Gongzhen Cheng

Excellent ORR catalysis activity in both alkaline and acid media was found in porous N-doped carbon hybridized with Fe3C nanoparticle-encased CNTs by annealing ZIF-8, FeC2O4 and cyanoguanidine.

2016 ◽  
Vol 55 (24) ◽  
pp. 6842-6847 ◽  
Author(s):  
Tat Thang Vo Doan ◽  
Jingbo Wang ◽  
Kee Chun Poon ◽  
Desmond C. L. Tan ◽  
Bahareh Khezri ◽  
...  

ChemCatChem ◽  
2015 ◽  
Vol 8 (1) ◽  
pp. 163-170 ◽  
Author(s):  
Fuping Pan ◽  
Youxin Duan ◽  
Xinkai Zhang ◽  
Junyan Zhang

2013 ◽  
Vol 17 (04) ◽  
pp. 252-258 ◽  
Author(s):  
Qinggang He ◽  
Xiao Cheng ◽  
Ying Wang ◽  
Ruimin Qiao ◽  
Wanli Yang ◽  
...  

The dicobalt complex [ Co2(L2) ] of a Schiff-base pyrrole macrocycle adopts a Pacman structure in solution and the solid state and shows much greater catalytic activity and selectivity for the four-electron oxygen reduction reaction (ORR) than the mononuclear cobalt phthalocyanine (CoPc) counterpart. Soft X-ray absorption spectroscopy (XAS) shows that the Co center in Co2(L2) is of the same valence as mononuclear CoPc . However, the former complex shows higher unoccupied Co 3d density which is believed to be beneficial for electron transfers. Furthermore, the XAS data suggests that the crystal fields for Co2(L2) and CoPc are different, and that an interaction remains between two Co atoms in Co2(L2) . DFT calculations imply that the sterically hindered, cofacial structure of the dicobalt complex is critical for the operation of the four-electron reaction pathway during the ORR.


2016 ◽  
Vol 4 (10) ◽  
pp. 3678-3682 ◽  
Author(s):  
Shuqin Peng ◽  
Hongmei Jiang ◽  
Youming Zhang ◽  
Lu Yang ◽  
Shuqin Wang ◽  
...  

Co and N co-doped graphene networks derived from polyaniline nanofibers can show high oxygen reduction activity in acidic solutions.


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