Cobalt sulfides constructed heterogeneous interfaces decorated in N, S-codoped carbon nanosheets as highly efficient bifunctional oxygen electrocatalyst

Author(s):  
Changbin Sun ◽  
Jia Ding ◽  
Haozhi Wang ◽  
Jie Liu ◽  
Xiaopeng Han ◽  
...  

Rational design and controllable synthesis of excellent bifunctional oxygen reduction and evolution reaction (ORR/OER) electrocatalysts are of vital importance for zinc–air battery application. Herein, a nitrogen/sulfur-codoped carbon nanosheet (NSC) decorated...

Author(s):  
Menggeng Hao ◽  
Rongmin Dun ◽  
Yumiao Su ◽  
Lei He ◽  
Fandi Ning ◽  
...  

The nature of many highly efficient catalytic reactions catalyzed by metallocofactors is inspiring. Herein, the concept of metal cofactor was utilized in fabricating in-situ multiple metal and heteroatom self-doped porous...


2019 ◽  
Vol 7 (22) ◽  
pp. 13591-13601 ◽  
Author(s):  
Jin-Tao Ren ◽  
Zhong-Yong Yuan

Highly porous carbon nanosheets with N-coordinated metals are rationally developed and show outstanding electrocatalytic oxygen reduction and oxygen evolution performance.


Carbon ◽  
2018 ◽  
Vol 138 ◽  
pp. 300-308 ◽  
Author(s):  
Jingya Song ◽  
Yurong Ren ◽  
Jingsha Li ◽  
Xiaobing Huang ◽  
Fangyi Cheng ◽  
...  

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Seungwook Eom ◽  
Seyoung Ahn ◽  
Sanghwan Jeong

The optimum composition of cathode catalyst has been studied for rechargeable zinc air battery application. La0.9Ca0.1Co1−xFexO3  (x=0–0.4)perovskite powders were prepared using the citrate method. The substitution ratio of Co2+with Fe3+cations was controlled in the range of 0–0.4. The optimum substitution ratio of Fe3+cations was determined by electrochemical measurement of the air cathode composed of the catalyst, polytetrafluoroethylene (PTFE) binder, and Vulcan XC-72 carbon. The substitution by Fe enhanced the electrochemical performances of the catalysts. Considering oxygen reduction/evolution reactions and cyclability, we achieved optimum substitution level ofx=0.1in La0.9Ca0.1Co1−xFexO3.


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