Metal-free N, S co-doped graphene for efficient and durable nitrogen reduction reaction

2019 ◽  
Author(s):  
Ye Tian ◽  
Dazhong Xu ◽  
Ke Chu ◽  
Zhen Wei ◽  
Wuming Liu
Keyword(s):  
Reduction Reaction ◽  
Nitrogen Reduction ◽  
Metal Free ◽  
Doped Graphene ◽  
Co Doped

One-pot synthesis of nitrogen and sulfur co-doped graphene as efficient metal-free electrocatalysts for the oxygen reduction reaction

2014 ◽  
Vol 50 (37) ◽  
pp. 4839-4842 ◽  
Author(s):  
Xin Wang ◽  
Jie Wang ◽  
Deli Wang ◽  
Shuo Dou ◽  
Zhaoling Ma ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Current Density ◽  
Reaction Pathway ◽  
Reduction Reaction ◽  
One Pot ◽  
Onset Potential ◽  
Metal Free ◽  
Doped Graphene ◽  
Co Doped

Novel N and S co-doped graphene (NSG) was prepared by annealing GO with thiourea. The NSG electrodes show a direct four-electron reaction pathway, higher onset potential, current density and stability than undoped graphene.

Nitrogen and sulfur co-doped graphene aerogels as an efficient metal-free catalyst for oxygen reduction reaction in an alkaline solution

RSC Advances ◽  
2016 ◽  
Vol 6 (27) ◽  
pp. 22781-22790 ◽  
Author(s):  
Mei Wu ◽  
Zhiyu Dou ◽  
Jingjing Chang ◽  
Lili Cui
Keyword(s):  
Alkaline Solution ◽  
Reduction Reaction ◽  
Limiting Current ◽  
Random Orientation ◽  
Onset Potential ◽  
Metal Free ◽  
Limiting Current Density ◽  
3D Network ◽  
Doped Graphene ◽  
Co Doped

N–S-GAs 900 exhibit an interconnected porous 3D network with random orientation, crumpled sheets in SEM. The onset potential and limiting current density of N–S-GAs 900 are more positive and larger than other catalysts.

Rational design of boron contained co-doped graphene as high efficient electro-catalysts for nitrogen reduction reaction

2021 ◽  
Author(s):  
Wencheng Ouyang ◽  
Qiuming Zhi ◽  
LeLe Gong ◽  
Hao Sun ◽  
Minghui Liu ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Renewable Energy ◽  
Rational Design ◽  
Reduction Reaction ◽  
Ammonia Production ◽  
Ambient Conditions ◽  
Nitrogen Reduction ◽  
High Efficient ◽  
Doped Graphene ◽  
Co Doped

Electrocatalytic nitrogen reduction reaction (NRR) under ambient conditions has been proposed as a sustainable alternative for nitrogen fixation and ammonia production in environment and renewable energy fields. Carbon-based materials have...

Iodine/nitrogen co-doped graphene as metal free catalyst for oxygen reduction reaction

Carbon ◽  
2015 ◽  
Vol 95 ◽  
pp. 930-939 ◽  
Author(s):  
Yunfeng Zhan ◽  
Jilin Huang ◽  
Zhipeng Lin ◽  
Xiang Yu ◽  
Dongrong Zeng ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Metal Free ◽  
Doped Graphene ◽  
Co Doped

Interactions between Dopants in Dual-Doped Graphene Nanoribbons as Metal-Free Bifunctional Catalysts for Fuel Cell and Metal-Air Batteries

MRS Advances ◽  
2016 ◽  
Vol 1 (6) ◽  
pp. 421-425 ◽  
Author(s):  
Zhenghang Zhao ◽  
Zhenhai Xia
Keyword(s):  
Noble Metals ◽  
High Efficiency ◽  
Graphene Nanoribbons ◽  
Low Cost ◽  
Reduction Reaction ◽  
Bifunctional Catalysts ◽  
Carbon Nanomaterial ◽  
Metal Free ◽  
Doped Graphene ◽  
Co Doped

ABSTRACTDuel p-block element doped carbon nanomaterial is a new kind of metal-free bifunctional catalysts for fuel cells and metal-air batteries because of their low-cost and high efficiency compared to traditional noble metals and their alloys. To optimize co-doped catalysts, we studied the interactions of dopants on the doped graphene and their effect on oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). It is found that the interactions between N and X (P, B, S) occur within a distance of ∼0.5 nm, and beyond the distance their interactions are limited while the interactions between N and Cl take places beyond the distance of ∼0.5 nm.

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