Few-layer Graphene Prepared Via Microwave Digestion Reduction and its Electrochemical Performances in Lithium Ion Batteries

A highly conducting porous architecture with plenty of stable oxygen‐containing groups is designed to endow graphene electrodes with both high rate performance and high capacitance in energy storage. By exposing the graphene oxide/Ni foam composite to an epitaxial flame of a lighter for a few seconds, the resultant reduced graphene oxide/Ni foam (RGO/Ni foam) composite shows a three‐dimensional hierarchical porous structure with plenty of stable oxygen‐containing groups, owing to the expansion and moderate reduction of graphene oxide sheets inside the Ni foam. As a supercapacitor electrode, the porous RGO/Ni foam composite exhibits an exceptional specific capacitance of 407.2 F g−1 at 500 mA g−1. An enlarged operation voltage of 1.8 V is also realized when packaging the RGO/Ni foam composite into a symmetric two‐electrode cell configuration, exhibiting high energy density and power density. As an anode electrode in a lithium‐ion battery, the first discharge/charge capacities of the RGO/Ni foam composite are 2194/1372 mA h g−1 at 100 mA g−1. This work gives great inspiration for the large‐scale production of high‐performance graphene‐based electrodes for energy storage.

show abstract

Hierarchical Porous Graphene/Ni Foam Composite with High Performances in Energy Storage Prepared by Flame Reduction of Graphene Oxide

Yang

Han

et al. 2017

ChemElectroChem

View full text Add to dashboard Cite

show abstract

Reduced graphene oxide reinforced PET/PBT nanocomposites: Compatibilization and characterization

Durmaz

Öztürk

Aytaç

2020

Polymer Engineering & Sci

View full text Add to dashboard Cite

This research work focused on the effects of different compatibilizers on the properties of reduced graphene oxide (rGO) reinforced poly(ethylene terephthalate) (PET)/poly(butylene terephthalate) (PBT) nanocomposites. The samples were prepared via melt compounding and injection molding methods. The Joncryl and glycidyl isooctyl polyhedral oligomeric silsesquioxane (GPOSS) were used as compatibilizers at different loading levels (0.5%-4%). The structural, thermal, mechanical, morphological, and electrical properties of the nanocomposites were investigated. The Fourier transform infrared analysis results revealed that no significant interaction was observed when GPOSS was added. On the other hand, there were more obvious changes in the peaks of the nanocomposite containing Joncryl. The thermal results showed that the compatibilizer addition caused small changes while rGO addition did not considerably affect the thermal stability of blend. The glass transition temperature of the nanocomposite significantly decreased with the addition of GPOSS. The tensile test indicated that compatibilizers improved the mechanical performance of PET/PBT/rGO nanocomposite.

show abstract

A comparative study for producing few-layer graphene sheets via electrochemical and microwave-assisted exfoliation from graphite powder

Jehad

Kocabaş

Yurddaşkal

2020

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Few-layer Graphene Prepared Via Microwave Digestion Reduction and its Electrochemical Performances in Lithium Ion Batteries

Cited by 13 publications

References 38 publications

Hierarchical Porous Graphene/Ni Foam Composite with High Performances in Energy Storage Prepared by Flame Reduction of Graphene Oxide

Hierarchical Porous Graphene/Ni Foam Composite with High Performances in Energy Storage Prepared by Flame Reduction of Graphene Oxide

Reduced graphene oxide reinforced PET/PBT nanocomposites: Compatibilization and characterization

A comparative study for producing few-layer graphene sheets via electrochemical and microwave-assisted exfoliation from graphite powder

Contact Info

Product

Resources

About