Facile Synthesis of Mn3O4-rGO Nanocomposite As an Efficient Electrode Material for Application in Supercapacitors.
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| Title: | Facile Synthesis of Mn |
|---|---|
| Authors: | Abdel-Aal, Seham K.1,2 (AUTHOR) seham@sci.cu.edu.eg, Attia, Sayed Y.3 (AUTHOR), Mohamed, Saad G.3 (AUTHOR) sgmmohamed@gmail.com |
| Source: | Journal of Electronic Materials. Aug2019, Vol. 48 Issue 8, p4977-4986. 10p. |
| Subjects: | Supercapacitor electrodes, Energy density, Carbon electrodes, Supercapacitors, Heat treatment, Power density |
| Abstract: | In this work, facile synthesis of Mn3O4-reduced graphene oxide (Mn3O4-rGO nanocomposite is presented, in which the reduction of graphene oxide and the nucleation of Mn3O4 on the graphene sheet occur simultaneously with the aid of hydrazine hydrate followed by heat treatment of the precipitate at 400°C in air. The characterization tools prove the formation of Mn3O4-rGO nanocomposite. The average crystallite size is 17 nm. When used as a supercapacitor electrode, the as-prepared Mn3O4-rGO exhibited excellent electrochemical performance with a specific capacitance of 411 F g−1 at a current density of 1 A g−1, high rate capability of 54% retention at 10 A g−1, and good cycling stability (77% capacitance retention even after 3000 cycles). The electrochemical performance of Mn3O4-rGO nanocomposite is further explored by assembling a hybrid supercapacitor device using the Mn3O4-rGO nanocomposite as a positive electrode and an activated carbon as a negative electrode, the assembled-device exhibited the highest energy density of 28.35 Wh kg−1 at a power density of 823 W kg−1, and still showed an energy density of 14.66 Wh kg−1 at a power density of 6597 W kg−1. These findings make the Mn3O4-rGO nanocomposite a potential material for high-performing energy-storage systems. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Electronic Materials is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Items | – Name: Title Label: Title Group: Ti Data: Facile Synthesis of Mn<subscript>3</subscript>O<subscript>4</subscript>-rGO Nanocomposite As an Efficient Electrode Material for Application in Supercapacitors. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Abdel-Aal%2C+Seham+K%2E%22">Abdel-Aal, Seham K.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> seham@sci.cu.edu.eg</i><br /><searchLink fieldCode="AR" term="%22Attia%2C+Sayed+Y%2E%22">Attia, Sayed Y.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mohamed%2C+Saad+G%2E%22">Mohamed, Saad G.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> sgmmohamed@gmail.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Electronic+Materials%22">Journal of Electronic Materials</searchLink>. Aug2019, Vol. 48 Issue 8, p4977-4986. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Supercapacitor+electrodes%22">Supercapacitor electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+density%22">Energy density</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+electrodes%22">Carbon electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Supercapacitors%22">Supercapacitors</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Power+density%22">Power density</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this work, facile synthesis of Mn3O4-reduced graphene oxide (Mn3O4-rGO nanocomposite is presented, in which the reduction of graphene oxide and the nucleation of Mn3O4 on the graphene sheet occur simultaneously with the aid of hydrazine hydrate followed by heat treatment of the precipitate at 400°C in air. The characterization tools prove the formation of Mn3O4-rGO nanocomposite. The average crystallite size is 17 nm. When used as a supercapacitor electrode, the as-prepared Mn3O4-rGO exhibited excellent electrochemical performance with a specific capacitance of 411 F g−1 at a current density of 1 A g−1, high rate capability of 54% retention at 10 A g−1, and good cycling stability (77% capacitance retention even after 3000 cycles). The electrochemical performance of Mn3O4-rGO nanocomposite is further explored by assembling a hybrid supercapacitor device using the Mn3O4-rGO nanocomposite as a positive electrode and an activated carbon as a negative electrode, the assembled-device exhibited the highest energy density of 28.35 Wh kg−1 at a power density of 823 W kg−1, and still showed an energy density of 14.66 Wh kg−1 at a power density of 6597 W kg−1. These findings make the Mn3O4-rGO nanocomposite a potential material for high-performing energy-storage systems. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Electronic Materials is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11664-019-07305-4 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 4977 Subjects: – SubjectFull: Supercapacitor electrodes Type: general – SubjectFull: Energy density Type: general – SubjectFull: Carbon electrodes Type: general – SubjectFull: Supercapacitors Type: general – SubjectFull: Heat treatment Type: general – SubjectFull: Power density Type: general Titles: – TitleFull: Facile Synthesis of Mn3O4-rGO Nanocomposite As an Efficient Electrode Material for Application in Supercapacitors. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Abdel-Aal, Seham K. – PersonEntity: Name: NameFull: Attia, Sayed Y. – PersonEntity: Name: NameFull: Mohamed, Saad G. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 03615235 Numbering: – Type: volume Value: 48 – Type: issue Value: 8 Titles: – TitleFull: Journal of Electronic Materials Type: main |
| ResultId | 1 |
