Nitrogen-doped graphene/carbon nanotube/Co3O4 hybrids: one-step synthesis and superior electrocatalytic activity for the oxygen reduction reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (115) ◽  
pp. 94615-94622 ◽  
Author(s):  
Hengyi Lu ◽  
Yunpeng Huang ◽  
Jiajie Yan ◽  
Wei Fan ◽  
Tianxi Liu
Keyword(s):  
Carbon Nanotube ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Long Term Stability ◽  
Crossover Effects ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
One Step ◽  
Orr Activity

N-rGO/CNTs/Co3O4 hybrids were prepared through a simple one-step hydrothermal method, and exhibited comparable electrocatalytic ORR activity to Pt/C catalysts, excellent tolerance to methanol crossover effects, and even better long-term stability.

One step synthesis of chlorine-free Pt/Nitrogen-doped graphene composite for oxygen reduction reaction

Carbon ◽  
2018 ◽  
Vol 133 ◽  
pp. 90-100 ◽  
Author(s):  
Tamás Varga ◽  
Ágnes Tímea Varga ◽  
Gergő Ballai ◽  
Henrik Haspel ◽  
Ákos Kukovecz ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Graphene Composite ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
One Step

Enriched graphitic N in nitrogen-doped graphene as a superior metal-free electrocatalyst for the oxygen reduction reaction

2018 ◽  
Vol 42 (24) ◽  
pp. 19665-19670 ◽  
Author(s):  
Xiangyu Lu ◽  
Dan Wang ◽  
Liping Ge ◽  
Lihui Xiao ◽  
Haiyan Zhang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Active Center ◽  
Reduction Reaction ◽  
Key Factors ◽  
Total N ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Orr Activity

The active center of N-G catalysts for ORR is confirmed to be related to the graphitic N, and the total N content in N-G catalysts is not the key factors to determine the ORR activity.

A few-layered MoS2 nanosheets/nitrogen-doped graphene 3D aerogel as a high performance and long-term stability supercapacitor electrode

Nanoscale ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 4318-4327 ◽  
Author(s):  
Yue Yuan ◽  
Haipeng Lv ◽  
Qunjie Xu ◽  
Haimei Liu ◽  
YongGang Wang
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Mos2 Nanosheets ◽  
Supercapacitor Electrode ◽  
Nitrogen Doped ◽  
Long Term Stability ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Layered Mos2

Few-layered MoS2 nanosheets form hybrids with nitrogen-doped graphene to construct a three-dimensional aerogel and demonstrate greatly enhanced capacitance and long cycling life as a supercapacitor electrode.

MnO–nitrogen doped graphene as a durable non-precious hybrid catalyst for the oxygen reduction reaction in anion exchange membrane fuel cells

RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 95590-95600 ◽  
Author(s):  
A. Arunchander ◽  
M. Vivekanantha ◽  
S. Gouse Peera ◽  
A. K. Sahu
Keyword(s):  
Oxygen Reduction Reaction ◽  
Anion Exchange ◽  
Reduction Reaction ◽  
Anion Exchange Membrane ◽  
Hybrid Catalyst ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Orr Activity ◽  
Exchange Membrane

A MnO/NG catalyst exhibits superior ORR activity and durability compared to commercial Pt/C catalyst in an alkaline medium.

scholarly journals Density functional theory study of active sites on nitrogen-doped graphene for oxygen reduction reaction

2021 ◽  
Vol 8 (9) ◽  
pp. 210272
Author(s):  
Ping Yan ◽  
Song Shu ◽  
Longhua Zou ◽  
Yongjun Liu ◽  
Jianjun Li ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Reaction Mechanism ◽  
Active Sites ◽  
Density Functional ◽  
Reduction Reaction ◽  
Functional Theory ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Orr Activity

Oxygen reduction reaction (ORR) remains challenging due to its complexity and slow kinetics. In particular, Pt-based catalysts which possess outstanding ORR activity are limited in application with high cost and ease of poisoning. In recent years, nitrogen-doped graphene has been widely studied as a potential ORR catalyst for replacing Pt. However, the vague understanding of the reaction mechanism and active sites limits the potential ORR activity of nitrogen-doped graphene materials. Herein, density functional theory is used to study the reaction mechanism and active sites of nitrogen-doped graphene for ORR at the atomic level, focusing on explaining the important role of nitrogen species on ORR. The results reveal that graphitic N (GrN) doping is beneficial to improve the ORR performance of graphene, and dual-GrN-doped graphene can demonstrate the highest catalytic properties with the lowest barriers of ORR. These results provide a theoretical guide for designing catalysts with ideal ORR property, which puts forward a new approach to conceive brilliant catalysts related to energy conversion and environmental catalysis.

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