Co9S8 nanoparticles anchored on nitrogen and sulfur dual-doped carbon nanosheets as highly efficient bifunctional electrocatalyst for oxygen evolution and reduction reactions

Nanoscale ◽  
2017 ◽  
Vol 9 (34) ◽  
pp. 12432-12440 ◽  
Author(s):  
Can Wu ◽  
Yuhang Zhang ◽  
Duo Dong ◽  
Haiming Xie ◽  
Jinghong Li

Co9S8/N,S–C nanosheets were prepared using an NaCl-templated strategy, and exhibited excellent OER and ORR catalytic performance.

2021 ◽  
Author(s):  
Xinxin Sang ◽  
Hengbo Wu ◽  
Nan Zang ◽  
Huilian Che ◽  
Dongyin Liu ◽  
...  

Co2P hybridized with multi-doped carbon nanoleaves is obtained via direct carbonization of ZIF-L/PEI/PA and show good electro-catalytic performance in OER.


2018 ◽  
Vol 8 (9) ◽  
pp. 2289-2293 ◽  
Author(s):  
Haitao Lei ◽  
Mingxing Chen ◽  
Zuozhong Liang ◽  
Chengyu Liu ◽  
Wei Zhang ◽  
...  

Ni2P hollow microspheres are synthesized via a facile two-step strategy and shown to be an active bifunctional electrocatalyst for oxygen evolution and reduction reactions.


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.


NANO ◽  
2019 ◽  
Vol 14 (08) ◽  
pp. 1950101 ◽  
Author(s):  
Dandan Zhang ◽  
Renxing Huang ◽  
Huaming Xie ◽  
Xingyong Liu ◽  
Ying Lei ◽  
...  

Development of low-cost, highly active catalyst for efficient oxygen evolution reaction based on earth-abundant metals is still a great challenge. Here, we report that a rod-like bimetallic NiFe metal-organic framework (NiFe-MOF) can directly act as a highly efficient oxygen evolution reaction (OER) catalyst synthesized by a convenient-to-operate hydrothermal method. The rod-like NiFe-MOF can derive 10[Formula: see text]mA[Formula: see text]cm[Formula: see text] with a low overpotential of only 26[Formula: see text]mV, and its Tafel slope is 40.82[Formula: see text]mV[Formula: see text]dec[Formula: see text], which is superior to that of monometallic Ni-MOF or Fe-MOF, and even can be comparable to that of RuO2. To identify the origin of enhancing OER activity, we resorted to X-ray diffraction, scanning electron microscope, transmission electron microscope, high resolution transmission electron microscopy image and nitrogen adsorption–desorption techniques and various electrochemical techniques to probe it gingerly. The results indicate that its high electrochemically active area and the synergistic effect of bimetallic node could be responsible for the surprisingly high catalytic performance of the NiFe-MOF. These results suggest that this kind of bimetallic MOF (NiFe-MOF) could be a promising electrocatalyst for oxygen evolution reaction.


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