Hexamethylenetetramine mediated simultaneous nitrogen doping and reduction of graphene oxide for a metal-free SERS substrate

RSC Advances ◽  
2014 ◽  
Vol 4 (83) ◽  
pp. 44146-44150 ◽  
Author(s):  
Barun Kumar Barman ◽  
Karuna Kar Nanda
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Synthesis ◽  
Metal Ions ◽  
Reduced Graphene Oxide ◽  
Ag Nanoparticles ◽  
Nitrogen Doping ◽  
Sers Substrate ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Reduced Graphene

We report the hydrothermal synthesis of nitrogen doped reduced graphene oxide (N-rGO) and Ag nanoparticles (NPs) decorated N-rGO from graphene oxide (GO), metal ions and hexamethylenetetramine.

One-Pot Hydrothermal Synthesis of Nitrogen-Doped Reduced Graphene Oxide Hydrogel

2015 ◽  
Vol 7 (7) ◽  
pp. 1415-1423 ◽  
Author(s):  
Zhengshan Tian ◽  
Chunxiang Xu ◽  
Jitao Li ◽  
Gangyi Zhu ◽  
Panlin Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Synthesis ◽  
Reduced Graphene Oxide ◽  
One Pot ◽  
Nitrogen Doped ◽  
Reduced Graphene

scholarly journals Effect of Nitrogen Doping on the Optical Bandgap and Electrical Conductivity of Nitrogen-Doped Reduced Graphene Oxide

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6424
Author(s):  
Gunawan Witjaksono ◽  
Muhammad Junaid ◽  
Mohd Haris Khir ◽  
Zaka Ullah ◽  
Nelson Tansu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Nitrogen Doping ◽  
Spectroscopic Analysis ◽  
Hall Effect Measurement ◽  
Optical Bandgap ◽  
Suitable Material ◽  
Nitrogen Doped ◽  
Reduced Graphene

Graphene as a material for optoelectronic design applications has been significantly restricted owing to zero bandgap and non-compatible handling procedures compared with regular microelectronic ones. In this work, nitrogen-doped reduced graphene oxide (N-rGO) with tunable optical bandgap and enhanced electrical conductivity was synthesized via a microwave-assisted hydrothermal method. The properties of the synthesized N-rGO were determined using XPS, FTIR and Raman spectroscopy, UV/vis, as well as FESEM techniques. The UV/vis spectroscopic analysis confirmed the narrowness of the optical bandgap from 3.4 to 3.1, 2.5, and 2.2 eV in N-rGO samples, where N-rGO samples were synthesized with a nitrogen doping concentration of 2.80, 4.53, and 5.51 at.%. Besides, an enhanced n-type electrical conductivity in N-rGO was observed in Hall effect measurement. The observed tunable optoelectrical characteristics of N-rGO make it a suitable material for developing future optoelectronic devices at the nanoscale.

Carbocatalysis: N-doped reduced graphene oxide catalyzed esterification of fatty acids with long chain alcohols

2016 ◽  
Vol 40 (2) ◽  
pp. 1547-1553 ◽  
Author(s):  
Jyoti Porwal ◽  
Neha Karanwal ◽  
Savita Kaul ◽  
Suman L. Jain
Keyword(s):  
Fatty Acids ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Heterogeneous Catalyst ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Reduced Graphene ◽  
Toona Ciliata ◽  
Bischofia Javanica ◽  
Long Chain

Nitrogen doped reduced graphene oxide (N-rGO) was found to be an efficient metal free and heterogeneous catalyst for the esterification of different fatty compounds including Bischofia javanica and Toona ciliata fatty acids with long chain alcohols.

Nitrogen-doped reduced-graphene oxide as an efficient metal-free electrocatalyst for oxygen reduction in fuel cells

RSC Advances ◽  
2013 ◽  
Vol 3 (12) ◽  
pp. 3990 ◽  
Author(s):  
Zhen-Jiang Lu ◽  
Shu-Juan Bao ◽  
Yu-Ting Gou ◽  
Chang-Jun Cai ◽  
Chen-Chen Ji ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fuel Cells ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Reduced Graphene
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