scholarly journals Nitrogen, sulfur and phosphorus-codoped carbon with a tunable nanostructure as an efficient electrocatalyst for the oxygen reduction reaction

RSC Advances ◽  
2017 ◽  
Vol 7 (10) ◽  
pp. 5782-5789 ◽  
Author(s):  
Kai Chen ◽  
Yajuan Hao ◽  
Meirong Zhang ◽  
Dongying Zhou ◽  
Yingjie Cao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Reduction Reaction ◽  
Carbon Nanosheets ◽  
Carbon Catalysts

The N/S/P-codoped carbon catalysts with varied nanostructures were facilely prepared. The mesoporous carbon nanosheets exhibit the optimal catalytic activity for ORR.

scholarly journals Effect of Pyrolysis Conditions on the Performance of Co–Doped MOF–Derived Carbon Catalysts for Oxygen Reduction Reaction

Catalysts ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1163
Author(s):  
Ning Cui ◽  
Kexiao Bi ◽  
Wei Sun ◽  
Qianqian Wu ◽  
Yinan Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Heating Rate ◽  
Reduction Reaction ◽  
Half Wave ◽  
Step Heating ◽  
The Stability ◽  
Carbon Catalysts ◽  
Co Doped

MOF–derived porous carbon is a type of promising catalyst to replace expensive Pt–based catalysts for oxygen reduction reaction (ORR). The catalytic activity for ORR depends closely on pyrolysis conditions. In this work, a Co–doped ZIF–8 material was chosen as a research object. The effect of pyrolysis conditions (temperature, heating rate, two–step heating) on the ORR performance of ZIF–derived carbon catalysts was systematically studied. The Co–ZIF–8 catalyst carbonized at 900 °C exhibits better ORR catalytic activity than that carbonized at 800 °C and 1000 °C. Moreover, a low heating rate can enhance catalytic activity. Two–step pyrolysis is proven to be an effective way to improve the performance of catalysts. Reducing the heating rate in the low–temperature stage is more beneficial to the ORR performance, compared to the heating rate in the high–temperature stage. The results show that the Co–ZIF–8 catalyst exhibits the best performance when the precursor was heated to 350 °C at 2 °C/min, and then heated to 900 °C at 5 °C/min. The optimum Co–ZIF–8 catalyst shows a half–wave potential of 0.82 V and a current density of 5.2 mA·cm−2 in 0.1 M KOH solution. It also exhibits high content of defects and good graphitization. TEM mapping shows that Co and N atoms are highly dispersed in the polyhedral carbon skeleton. However, two–step pyrolysis has no significant effect on the stability of the catalyst.

Fe3Pt intermetallic nanoparticles anchored on N-doped mesoporous carbon for the highly efficient oxygen reduction reaction

2020 ◽  
Vol 56 (36) ◽  
pp. 4898-4901 ◽  
Author(s):  
Danke Chen ◽  
Zhuoyi Li ◽  
Yu Zhou ◽  
Xu Ma ◽  
Hanqing Lin ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Reduction Reaction ◽  
Highly Efficient ◽  
Carbon Catalysts ◽  
Intermetallic Nanoparticles

N-Doped mesoporous carbon catalysts dispersed with Fe3Pt intermetallic nanoparticles, exhibiting excellent ORR performance, were synthesised by direct pyrolysis of Pt–Fe co-functionalized ZIF-8.

KIT‐6 Three Dimensional Template Derived Mesoporous Carbon for Oxygen Reduction Reaction: Effect of Template Removal on Catalytic Activity

2018 ◽  
Vol 3 (42) ◽  
pp. 11864-11874 ◽  
Author(s):  
Velu Duraisamy ◽  
Soundarrajan Palanivel ◽  
Rangasamy Thangamuthu ◽  
Sakkarapalayam Murugesan Senthil Kumar
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Three Dimensional ◽  
Reduction Reaction ◽  
Template Removal

scholarly journals Mn3O4 nanoparticle-decorated hollow mesoporous carbon spheres as an efficient catalyst for oxygen reduction reaction in Zn–air batteries

2020 ◽  
Vol 2 (8) ◽  
pp. 3367-3374
Author(s):  
Yingjie He ◽  
Drew Aasen ◽  
Haoyang Yu ◽  
Matthew Labbe ◽  
Douglas G. Ivey ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Reduction Reaction ◽  
Carbon Spheres ◽  
Efficient Catalyst ◽  
Air Battery

Hybrids of hollow mesoporous carbon and Mn3O4 nanoparticles exhibit excellent catalytic activity on oxygen reduction reaction (ORR) in Zn–air battery.

Nitrogen-doped mesoporous carbon hollow spheres as a novel carbon support for oxygen reduction reaction

2014 ◽  
Vol 38 (11) ◽  
pp. 5521-5526 ◽  
Author(s):  
Chun-Han Hsu ◽  
Jhan-Yi Jan ◽  
Hong-Ping Lin ◽  
Ping-Lin Kuo
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Hollow Spheres ◽  
Carbon Support ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Carbon Hollow Spheres

The Pt/NMC catalyst has better catalytic activity than that of Pt/MC, EG–Pt/XC-72 and the commercial Pt/C catalyst.

Sulphur-Doped Ordered Mesoporous Carbon Hollow Spheres with High Catalytic Activity for the Oxygen Reduction Reaction and Exceptional Electrochemical Stability

2019 ◽  
Vol 92 (8) ◽  
pp. 679-687
Author(s):  
J.C. Carrillo-Rodríguez ◽  
Ivonne Liliana Alonso-Lemus ◽  
Luis de la Torre Saenz ◽  
Beatriz Escobar-Morales ◽  
A.M. Garay-Tapia ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Hollow Spheres ◽  
Reduction Reaction ◽  
Electrochemical Stability ◽  
Ordered Mesoporous Carbon ◽  
High Catalytic Activity ◽  
Ordered Mesoporous
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