scholarly journals Gram-scale production of nitrogen doped graphene using a 1,3-dipolar organic precursor and its utilisation as a stable, metal free oxygen evolution reaction catalyst

2017 ◽  
Vol 53 (55) ◽  
pp. 7748-7751 ◽  
Author(s):  
Mustafa K. Bayazit ◽  
Savio J. A. Moniz ◽  
Karl S. Coleman

For the first time, a one-step scalable synthesis of a few-layer ∼10% nitrogen doped (N-doped) graphene nanosheets (GNSs) from a stable but highly reactive 1,3-dipolar organic precursor is reported.

FlatChem ◽  
2021 ◽  
pp. 100292
Author(s):  
Worawut Muangrat ◽  
Michiko Obata ◽  
Myo Than Htay ◽  
Masatsugu Fujishige ◽  
Paweena Dulyaseree ◽  
...  

Materials ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 666 ◽  
Author(s):  
Florent Bourquard ◽  
Yannick Bleu ◽  
Anne-Sophie Loir ◽  
Borja Caja-Munoz ◽  
José Avila ◽  
...  

Graphene-based materials are widely studied to enable significant improvements in electroanalytical devices requiring new generations of robust, sensitive and low-cost electrodes. In this paper, we present a direct one-step route to synthetize a functional nitrogen-doped graphene film onto a Ni-covered silicon electrode substrate heated at high temperature, by pulsed laser deposition of carbon in the presence of a surrounding nitrogen atmosphere, with no post-deposition transfer of the film. With the ferrocene methanol system, the functionalized electrode exhibits excellent reversibility, close to the theoretical value of 59 mV, and very high sensitivity to hydrogen peroxide oxidation. Our electroanalytical results were correlated with the composition and nanoarchitecture of the N-doped graphene film containing 1.75 at % of nitrogen and identified as a few-layer defected and textured graphene film containing a balanced mixture of graphitic-N and pyrrolic-N chemical functions. The absence of nitrogen dopant in the graphene film considerably degraded some electroanalytical performances. Heat treatment extended beyond the high temperature graphene synthesis did not significantly improve any of the performances. This work contributes to a better understanding of the electrochemical mechanisms of doped graphene-based electrodes obtained by a direct and controlled synthesis process.


ACS Nano ◽  
2019 ◽  
Vol 13 (7) ◽  
pp. 7517-7526 ◽  
Author(s):  
Nan Wei ◽  
Lianghao Yu ◽  
Zhongti Sun ◽  
Yingze Song ◽  
Menglei Wang ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 1527-1534 ◽  
Author(s):  
Mahabul Shaik ◽  
V. K. Rao ◽  
Manish Gupta ◽  
K. S. R. C. Murthy ◽  
Rajeev Jain

Nitrogen doped graphene nanosheet coated interdigitated electrodes for sensitive detection of NO2 gas at room temperature.


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