Hierarchical Flowerlike 3D nanostructure of Co3O4@MnO2/N-doped Graphene oxide (NGO) hybrid composite for a high-performance supercapacitor

Abstract The present study investigates the fabrication of hierarchical 3D nanostructures with multi-component metal oxides in the presence of highly-porous graphene and characterized for its applications in high-performance supercapacitors. A hierarchical flowers like 3D nanostructure of Co3O4 @MnO...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sivalingam Ramesh, K. Karuppasamy, Hyun-Seok Kim, Heung Soo Kim, Joo-Hyung Kim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Hybrid Composites Graphene Oxide (GO) High Performance Supercapacitors Thermal Reduction Process Hierarchical Flow Medicine R Science Q
Acceso en línea:	https://doaj.org/article/abbb112be2904dcbb08c716257a41501
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:abbb112be2904dcbb08c716257a41501
record_format	dspace
spelling	oai:doaj.org-article:abbb112be2904dcbb08c716257a415012021-12-02T15:08:22ZHierarchical Flowerlike 3D nanostructure of Co3O4@MnO2/N-doped Graphene oxide (NGO) hybrid composite for a high-performance supercapacitor10.1038/s41598-018-34905-72045-2322https://doaj.org/article/abbb112be2904dcbb08c716257a415012018-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-34905-7https://doaj.org/toc/2045-2322Abstract The present study investigates the fabrication of hierarchical 3D nanostructures with multi-component metal oxides in the presence of highly-porous graphene and characterized for its applications in high-performance supercapacitors. A hierarchical flowers like 3D nanostructure of Co3O4 @MnO2 on nitrogen-doped graphene oxide (NGO) hybrid composite was synthesized by thermal reduction process at 650 °C in the presence of ammonia and urea. The synthesized Co3O4@MnO2/NGO hybrid composites were studied via Raman, XRD, X-ray XPS, FE-SEM, FE-SEM with EDX, FE-TEM and BET analyses. The electrochemical analysis of Co3O4@MnO2/NGO hybrid composite electrode was investigated using cyclic voltammetry, chronopotentiometry and electrochemical impedance measurements. The hybrid composite electrode showed significant specific capacitance results of up to 347 F/g at 0.5 A/g and a corresponding energy density of 34.83 Wh kg−1 with better rate performance and excellent long-term cycling stability were achieved for 10,000 cycles. The obtained electrochemical results paved a way to utilize Co3O4@MnO2/NGO composite electrode as a promising electrode material in high performance supercapacitors.Sivalingam RameshK. KaruppasamyHyun-Seok KimHeung Soo KimJoo-Hyung KimNature PortfolioarticleHybrid CompositesGraphene Oxide (GO)High Performance SupercapacitorsThermal Reduction ProcessHierarchical FlowMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Hybrid Composites Graphene Oxide (GO) High Performance Supercapacitors Thermal Reduction Process Hierarchical Flow Medicine R Science Q
spellingShingle	Hybrid Composites Graphene Oxide (GO) High Performance Supercapacitors Thermal Reduction Process Hierarchical Flow Medicine R Science Q Sivalingam Ramesh K. Karuppasamy Hyun-Seok Kim Heung Soo Kim Joo-Hyung Kim Hierarchical Flowerlike 3D nanostructure of Co3O4@MnO2/N-doped Graphene oxide (NGO) hybrid composite for a high-performance supercapacitor
description	Abstract The present study investigates the fabrication of hierarchical 3D nanostructures with multi-component metal oxides in the presence of highly-porous graphene and characterized for its applications in high-performance supercapacitors. A hierarchical flowers like 3D nanostructure of Co3O4 @MnO2 on nitrogen-doped graphene oxide (NGO) hybrid composite was synthesized by thermal reduction process at 650 °C in the presence of ammonia and urea. The synthesized Co3O4@MnO2/NGO hybrid composites were studied via Raman, XRD, X-ray XPS, FE-SEM, FE-SEM with EDX, FE-TEM and BET analyses. The electrochemical analysis of Co3O4@MnO2/NGO hybrid composite electrode was investigated using cyclic voltammetry, chronopotentiometry and electrochemical impedance measurements. The hybrid composite electrode showed significant specific capacitance results of up to 347 F/g at 0.5 A/g and a corresponding energy density of 34.83 Wh kg−1 with better rate performance and excellent long-term cycling stability were achieved for 10,000 cycles. The obtained electrochemical results paved a way to utilize Co3O4@MnO2/NGO composite electrode as a promising electrode material in high performance supercapacitors.
format	article
author	Sivalingam Ramesh K. Karuppasamy Hyun-Seok Kim Heung Soo Kim Joo-Hyung Kim
author_facet	Sivalingam Ramesh K. Karuppasamy Hyun-Seok Kim Heung Soo Kim Joo-Hyung Kim
author_sort	Sivalingam Ramesh
title	Hierarchical Flowerlike 3D nanostructure of Co3O4@MnO2/N-doped Graphene oxide (NGO) hybrid composite for a high-performance supercapacitor
title_short	Hierarchical Flowerlike 3D nanostructure of Co3O4@MnO2/N-doped Graphene oxide (NGO) hybrid composite for a high-performance supercapacitor
title_full	Hierarchical Flowerlike 3D nanostructure of Co3O4@MnO2/N-doped Graphene oxide (NGO) hybrid composite for a high-performance supercapacitor
title_fullStr	Hierarchical Flowerlike 3D nanostructure of Co3O4@MnO2/N-doped Graphene oxide (NGO) hybrid composite for a high-performance supercapacitor
title_full_unstemmed	Hierarchical Flowerlike 3D nanostructure of Co3O4@MnO2/N-doped Graphene oxide (NGO) hybrid composite for a high-performance supercapacitor
title_sort	hierarchical flowerlike 3d nanostructure of co3o4@mno2/n-doped graphene oxide (ngo) hybrid composite for a high-performance supercapacitor
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/abbb112be2904dcbb08c716257a41501
work_keys_str_mv	AT sivalingamramesh hierarchicalflowerlike3dnanostructureofco3o4mno2ndopedgrapheneoxidengohybridcompositeforahighperformancesupercapacitor AT kkaruppasamy hierarchicalflowerlike3dnanostructureofco3o4mno2ndopedgrapheneoxidengohybridcompositeforahighperformancesupercapacitor AT hyunseokkim hierarchicalflowerlike3dnanostructureofco3o4mno2ndopedgrapheneoxidengohybridcompositeforahighperformancesupercapacitor AT heungsookim hierarchicalflowerlike3dnanostructureofco3o4mno2ndopedgrapheneoxidengohybridcompositeforahighperformancesupercapacitor AT joohyungkim hierarchicalflowerlike3dnanostructureofco3o4mno2ndopedgrapheneoxidengohybridcompositeforahighperformancesupercapacitor
_version_	1718388205237043200

Hierarchical Flowerlike 3D nanostructure of Co3O4@MnO2/N-doped Graphene oxide (NGO) hybrid composite for a high-performance supercapacitor

Ejemplares similares