Atomically Dispersed Binary Co‐Ni Sites in Nitrogen‐Doped Hollow Carbon Nanocubes for Reversible Oxygen Reduction and Evolution

2019 ◽  
Vol 31 (49) ◽  
pp. 1905622 ◽  
Author(s):  
Xiaopeng Han ◽  
Xiaofei Ling ◽  
Deshuang Yu ◽  
Dengyu Xie ◽  
Linlin Li ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Nitrogen Doped ◽  
Hollow Carbon

Nitrogen-Doped Hollow Carbon Nanoparticles with Excellent Oxygen Reduction Performances and Their Electrocatalytic Kinetics

2011 ◽  
Vol 115 (50) ◽  
pp. 25148-25154 ◽  
Author(s):  
Guixiang Ma ◽  
Rongrong Jia ◽  
Jianghong Zhao ◽  
Zhijian Wang ◽  
Chang Song ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Carbon Nanoparticles ◽  
Nitrogen Doped ◽  
Hollow Carbon

Assembly of Hollow Carbon Nanospheres on Graphene Nanosheets and Creation of Iron–Nitrogen-Doped Porous Carbon for Oxygen Reduction

ACS Nano ◽  
2018 ◽  
Vol 12 (6) ◽  
pp. 5674-5683 ◽  
Author(s):  
Haibo Tan ◽  
Jing Tang ◽  
Joel Henzie ◽  
Yunqi Li ◽  
Xingtao Xu ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Porous Carbon ◽  
Graphene Nanosheets ◽  
Carbon Nanospheres ◽  
Nitrogen Doped ◽  
Hollow Carbon

Dual active nitrogen doped hierarchical porous hollow carbon nanospheres as an oxygen reduction electrocatalyst for zinc–air batteries

Nanoscale ◽  
2017 ◽  
Vol 9 (35) ◽  
pp. 13257-13263 ◽  
Author(s):  
Jiawei Zhu ◽  
Huang Zhou ◽  
Chengtian Zhang ◽  
Jian Zhang ◽  
Shichun Mu
Keyword(s):  
Oxygen Reduction ◽  
Carbon Nanospheres ◽  
Active Nitrogen ◽  
Energy Devices ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Hollow Carbon ◽  
Zinc Air Batteries ◽  
Electrochemical Energy

Advanced dual active N-doped hollow carbon nanospheres possess superior ORR performance and can be applied in practical electrochemical energy devices.

In situ formation of nitrogen-doped carbon nanoparticles on hollow carbon spheres as efficient oxygen reduction electrocatalysts

Nanoscale ◽  
2016 ◽  
Vol 8 (42) ◽  
pp. 18134-18142 ◽  
Author(s):  
Tingsheng Zhou ◽  
Yao Zhou ◽  
Ruguang Ma ◽  
Zhenzhen Zhou ◽  
Guanghui Liu ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Carbon Nanoparticles ◽  
Carbon Spheres ◽  
Nitrogen Doped ◽  
In Situ Formation ◽  
Hollow Carbon ◽  
Nitrogen Doped Carbon ◽  
Hollow Carbon Spheres

scholarly journals Fe atoms anchored on defective nitrogen doped hollow carbon spheres as efficient electrocatalysts for oxygen reduction reaction

Nano Research ◽  
2020 ◽  
Author(s):  
Panpan Su ◽  
Wenjuan Huang ◽  
Jiangwei Zhang ◽  
Utsab Guharoy ◽  
Qinggang Du ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Density Functional ◽  
Reduction Reaction ◽  
Carbon Spheres ◽  
Coordination Structure ◽  
Nitrogen Doped ◽  
Orr Activity ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

AbstractDefective electrocatalysts, especially for intrinsic defective carbon, have aroused a wide concern owing to high spin and charge densities. However, the designated nitrogen species favorable for creating defects by the removal of nitrogen, and the influence of defects for the coordination structure of active site and oxygen reduction reaction (ORR) activity have not been elucidated. Herein, we designed and synthesized a pair of electrocatalysts, denoted as Fe-N/C and Fe-ND/C for coordination sites of atomic iron-nitrogen and iron-nitrogen/defect configuration embedded in hollow carbon spheres, respectively, through direct pyrolysis of their corresponding hollow carbon spheres adsorbed with Fe(acac)3. The nitrogen defects were fabricated via the evaporation of pyrrolic-N on nitrogen doped hollow carbon spheres. Results of comparative experiments between Fe-N/C and Fe-ND/C reveal that Fe-ND/C shows superior ORR activity with an onset potential of 30 mV higher than that of Fe-N/C. Fe-ND sites are more favorable for the enhancement of ORR activity. Density functional theory (DFT) calculation demonstrates that Fe-ND/C with proposed coordination structure of FeN4−x (0<x<4) anchored by OH as axial ligand during ORR, weakens the strong binding of OH* intermediate and promotes the desorption of OH* as rate-determining step for ORR in alkaline electrolyte. Thus, Fe-ND/C electrocatalysts present much better ORR activity compared with that of Fe-N/C with proposed coordination structure of FeN4.

Nitrogen-doped hollow carbon polyhedron derived from salt-encapsulated ZIF-8 for efficient oxygen reduction reaction

Carbon ◽  
2021 ◽  
Vol 171 ◽  
pp. 320-328
Author(s):  
Jin Yan ◽  
Xiangjun Zheng ◽  
Chaohui Wei ◽  
Zhihui Sun ◽  
Kai Zeng ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Hollow Carbon
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