A novel approach of binary doping sulfur and nitrogen into graphene layers for enhancing electrochemical performances of supercapacitors

2016 ◽  
Vol 4 (48) ◽  
pp. 19053-19059 ◽  
Author(s):  
Xuesha Zhang ◽  
Pengtao Yan ◽  
Ruijun Zhang ◽  
Kang Liu ◽  
Yanyan Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Intercalation Compound ◽  
Electrochemical Performances ◽  
Graphite Intercalation Compound ◽  
Graphene Layers ◽  
Novel Approach ◽  
Reduced Graphene ◽  
Graphite Intercalation ◽  
Co Doped

In this paper, we present a novel route to prepare sulfur and nitrogen co-doped reduced graphene oxide, in which, two main procedures – the preparation of a sulfur-doped graphite intercalation compound (S-GIC) and the construction of the sulfur and nitrogen co-doped reduced graphene oxide (SN-RGO) are included.

scholarly journals Reduced Graphene Oxide-Supported Pt-Based Catalysts for PEM Fuel Cells with Enhanced Activity and Stability

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 256
Author(s):  
Irina V. Pushkareva ◽  
Artem S. Pushkarev ◽  
Valery N. Kalinichenko ◽  
Ratibor G. Chumakov ◽  
Maksim A. Soloviev ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Surface Area ◽  
Pem Fuel Cells ◽  
Polyol Process ◽  
Proton Exchange ◽  
Active Surface Area ◽  
Electrochemical Performances ◽  
Simultaneous Reduction ◽  
Reduced Graphene

Platinum (Pt)-based electrocatalysts supported by reduced graphene oxide (RGO) were synthesized using two different methods, namely: (i) a conventional two-step polyol process using RGO as the substrate, and (ii) a modified polyol process implicating the simultaneous reduction of a Pt nanoparticle precursor and graphene oxide (GO). The structure, morphology, and electrochemical performances of the obtained Pt/RGO catalysts were studied and compared with a reference Pt/carbon black Vulcan XC-72 (C) sample. It was shown that the Pt/RGO obtained by the optimized simultaneous reduction process had higher Pt utilization and electrochemically active surface area (EASA) values, and a better performance stability. The use of this catalyst at the cathode of a proton exchange membrane fuel cell (PEMFC) led to an increase in its maximum power density of up to 17%, and significantly enhanced its performance especially at high current densities. It is possible to conclude that the optimized synthesis procedure allows for a more uniform distribution of the Pt nanoparticles and ensures better binding of the particles to the surface of the support. The advantages of Pt/RGO synthesized in this way over conventional Pt/C are the high electrical conductivity and specific surface area provided by RGO, as well as a reduction in the percolation limit of the components of the electrocatalytic layer due to the high aspect ratio of RGO.

Ivermectin detection using Ag@ B, S co-doped reduced graphene oxide nanohybrid

2021 ◽  
pp. 159627
Author(s):  
Mater H. Mahnashi ◽  
Ashraf M. Mahmoud ◽  
Saad A. Alkahtani ◽  
Mohamed M. El-Wekil
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Co Doped

Multifunctional nitrogen sulfur co-doped reduced graphene oxide – Ag nano hybrids (sphere, cube and wire) for nonlinear optical and SERS applications

Carbon ◽  
2018 ◽  
Vol 132 ◽  
pp. 380-393 ◽  
Author(s):  
Anju K. Nair ◽  
K.B. Bhavitha ◽  
Sreekanth Perumbilavil ◽  
Pranitha Sankar ◽  
Didier Rouxel ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Nonlinear Optical ◽  
Reduced Graphene ◽  
Co Doped

Efficient electrocatalytic oxidation of p-phenylenediamine using a novel PANI/ZnO anchored bio-reduced graphene oxide nanocomposite

2019 ◽  
Vol 43 (17) ◽  
pp. 6500-6506 ◽  
Author(s):  
Manorama Singh ◽  
Anjumala Sahu ◽  
Suhasini Mahata ◽  
Prashant Shukla ◽  
Ankita Rai ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrocatalytic Oxidation ◽  
Novel Approach ◽  
Reduced Graphene

Herein, a novel approach was reported for the fabrication of a polyaniline/ZnO-anchored bio-reduced graphene oxide nanocomposite for the efficient electrocatalytic oxidation of p-phenylenediamine.

Methyl Parathion Detection Using SnS2/N, S–Co-Doped Reduced Graphene Oxide Nanocomposite

2020 ◽  
Vol 8 (30) ◽  
pp. 11194-11203
Author(s):  
Ragurethinam Shanmugam ◽  
Shaktivel Manavalan ◽  
Shen-Ming Chen ◽  
Murugan Keerthi ◽  
Li-Heng Lin
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Methyl Parathion ◽  
Reduced Graphene ◽  
Co Doped
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