Exploring supercapacitance of solvothermally synthesized N-rGO sheet: role of N-doping and the insight mechanism

Literature Information

Publication Date 2021-12-13
DOI 10.1039/D1CP03694G
Impact Factor 3.676
Authors

Ankit Yadav, Rajeev Kumar, Balaram Sahoo


View Original

Abstract

We demonstrate the method of achieving excellent supercapacitance in nitrogen-doped reduced graphene oxide (N-rGO) sheets by controlling the amount of N-content through the use of different ratios of GO and urea during solvothermal synthesis. Here, urea plays a dual role in reducing GO and simultaneously doping nitrogen into the GO flakes forming exfoliated N-rGO sheets. The nitrogen content in N-rGO samples rises with an increase in the amounts of urea and saturates at a value of ∼14% for the GO : urea ratios beyond 1 : 8. The obtained N-rGO sheets with ∼ 5% N-content (obtained for GO : urea ratio of 1 : 3) were demonstrated as excellent supercapacitor materials. Using a 3-electrode setup, the maximum specific capacitance obtained for this sample was 514 F g−1 at a current density of 0.5 A g−1 (mass normalized current). The insights into the origin of this excellent supercapacitive behavior are explained through our results on optimum N-content, the relative amount of different N-environments, defects/disorders, and the degree of reduction of GO. Importantly, a proper stacking of rGO sheets with moderate N-content (∼5–6%) and a moderate amount of defects is the key to achieve high specific-capacitance. Furthermore, our 2-electrode device demonstrates the excellence of our samples with a Csp of 237 F g−1, a power density of 225 W kg−1, and an energy density of 6.7 W h kg−1 at 0.5 A g−1, exhibiting a high cyclic constancy with high capacitive retention of ∼ 82% even after 8000 cycles. Hence, our work provides a way to control the properties of N-rGO in achieving excellent supercapacitive performance.

Related Literature

Reply to ‘Comment on “Angstrom-scale probing of paramagnetic centers location in nanodiamonds by 3He NMR at low temperatures”’ by A. Shames, V. Osipov and A. Panich, Phys. Chem. Chem. Phys. 2018, 20, DOI: 10.1039/c8cp03331e

Vyacheslav Kuzmin, Kajum Safiullin, Gleb Dolgorukov, Andrey Stanislavovas, Egor Alakshin, Sergei Orlinskii, Alexander Klochkov

2018-10-16 Comment

DOI: 10.1039/C8CP05801F

Fermi level equilibration of Ag and Au plasmonic metal nanoparticles supported on graphene oxide

Abhay N. Singh, Harsha Devnani, Shwetambara Jha, Pravin P. Ingole

2018-09-26 Paper

DOI: 10.1039/C8CP05170D

Inside front cover

Cover

DOI: 10.1039/C8CP90071J

An in situ DRIFTS mechanistic study of CeO2-catalyzed acetylene semihydrogenation reaction

Tian Cao, Rui You, Xuanyu Zhang, Shilong Chen, Dan Li, Zhenhua Zhang, Weixin Huang

2018-03-08 Paper

DOI: 10.1039/C8CP00668G

Elucidating the amphiphilic character of graphene oxide

Antenor J. Paulista Neto, Eudes E. Fileti

2018-03-07 Paper

DOI: 10.1039/C8CP00797G

Enhanced basepair dynamics pre-disposes protein-assisted flips of key bases in DNA strand separation during transcription initiation

Neeladri Sekhar Roy, Subrata Debnath, Abhijit Chakraborty, Prasenjit Chakraborty, Indrani Bera, Raka Ghosh, Nanda Ghoshal, Saikat Chakrabarti, Siddhartha Roy

2018-03-10 Paper

DOI: 10.1039/C8CP01119B

Contents list

Front/Back Matter

DOI: 10.1039/C8CP91901A

Novel isochoric measurement of the onset of vapor–liquid phase transition using differential scanning calorimetry

Xingdong Qiu, Sugata P. Tan, Morteza Dejam, Hertanto Adidharma

2018-10-01 Paper

DOI: 10.1039/C8CP05613G

Simulation of the Raman spectroscopy of multi-layered carbon nanomaterials

Pritesh M. Tailor, Richard J. Wheatley, Nicholas A. Besley

2018-10-25 Paper

DOI: 10.1039/C8CP05908J

Effects of biaxial tensile strain on the first-principles-driven thermal conductivity of buckled arsenene and phosphorene

Armin Taheri, Carlos Da Silva, Cristina H. Amon

2018-10-23 Paper

DOI: 10.1039/C8CP05342A

You might also like

155412-88-71-(3-Aminophenyl)-3-...
Compound Q&A

How should waste containing 1-(D-Ribofuranosyl)-1,4-dihydro-3-pyridinecarboxamide (CAS: 19132-12-8) be handled?

Waste containing 1-(D-Ribofuranosyl)-1,4-dihydro-3-pyridinecarboxamide (CAS: 191...

19132-12-81-(D-Ribofuranosyl)-...
Compound Q&A

What regulatory guidelines apply to 2-Methyl-2-propanyl 3-bromo-3-(hydroxymethyl)-1-azetidinecarboxylate (CAS: 2007919-81-3)?

2-Methyl-2-propanyl 3-bromo-3-(hydroxymethyl)-1-azetidinecarboxylate (CAS: 20079...

2007919-81-32-Methyl-2-propanyl ...
Compound Q&A

What is N-(4-Chloro-2-pyridinyl)acetamide (CAS: 245056-66-0)?

N-(4-Chloro-2-pyridinyl)acetamide (CAS: 245056-66-0) is a chemical compound with...

245056-66-0N-(4-Chloro-2-pyridi...
Compound Q&A

What is 5-Chloro-2-hydroxybenzoic acid (CAS: 321-14-2)?

5-Chloro-2-hydroxybenzoic acid, also known as 5-chlorosalicylic acid, is an arom...

321-14-25-Chloro-2-hydroxybe...
Compound Q&A

What precautions should be taken when handling 1,1-Dichloro-1-fluoroethane (CAS: 1717-00-6)?

When handling 1,1-Dichloro-1-fluoroethane (CAS: 1717-00-6), it is important to u...

1717-00-61,1-Dichloro-1-fluor...
Compound Q&A

What are the physical and chemical properties of Fmoc-(2S,3R)-3-phenylpyrrolidine-2-carboxylic acid (CAS: 281655-32-1)?

Fmoc-(2S,3R)-3-phenylpyrrolidine-2-carboxylic acid is a white crystalline solid ...

281655-32-1Fmoc-(2S,3R)-3-pheny...
Compound Q&A

What are the main uses of 4-Amino-5-bromo-2-pyridinecarboxylic acid (CAS: 1363381-01-4)?

4-Amino-5-bromo-2-pyridinecarboxylic acid is primarily used as a precursor in th...

1363381-01-44-Amino-5-bromo-2-py...
1007881-98-2(S)-tert-butyl 2-((2...
Compound Q&A

What precautions should be taken when handling 8-bromo-2,2-dimethyl-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS: 688363-73-7)?

When handling 8-bromo-2,2-dimethyl-3,4-dihydro-2H-1,4-benzoxazin-3-one, use prop...

688363-73-78-bromo-2,2-dimethyl...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.