Finely tuning oxygen functional groups of graphene materials and optimizing oxygen levels for capacitors

Gyutae Park; Sul Ki Park; Jongwoo Han; Taeg Yeoung Ko; Seungjun Lee; Junghoon Oh; Sunmin Ryu; Ho Seok Park; Sungjin Park

doi:10.1039/c4ra02873b

Finely tuning oxygen functional groups of graphene materials and optimizing oxygen levels for capacitors

Gyutae Park, Sul Ki Park, Jongwoo Han, Taeg Yeoung Ko, Seungjun Lee, Junghoon Oh, Sunmin Ryu, Ho Seok Park, Sungjin Park

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Oxygen-containing, chemically modified graphene (CMG) systems have been intensively investigated for various applications. The development of methods that allow fine control of the oxygen functionality would help better understand the mechanisms associated with CMGs, facilitate optimization of the material properties, and provide standards for chemical characterization purposes. Here, the authors report a new method for finely controlling the levels of oxygen in CMG materials based on the refluxing of aqueous colloidal suspensions of graphene oxide for specific reflux times, which does not require additional reducing agents. Chemical analysis confirmed that the oxygen levels can be finely controlled and they can provide spectroscopic tools to monitor the oxygen levels of CMG-based systems. This system was applied to help provide a fundamental foundation for the correlation between the oxygen groups and capacitive features. This journal is

Original language	English
Pages (from-to)	36377-36384
Number of pages	8
Journal	RSC Advances
Volume	4
Issue number	68
DOIs	https://doi.org/10.1039/c4ra02873b
State	Published - 2014

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title = "Finely tuning oxygen functional groups of graphene materials and optimizing oxygen levels for capacitors",

abstract = "Oxygen-containing, chemically modified graphene (CMG) systems have been intensively investigated for various applications. The development of methods that allow fine control of the oxygen functionality would help better understand the mechanisms associated with CMGs, facilitate optimization of the material properties, and provide standards for chemical characterization purposes. Here, the authors report a new method for finely controlling the levels of oxygen in CMG materials based on the refluxing of aqueous colloidal suspensions of graphene oxide for specific reflux times, which does not require additional reducing agents. Chemical analysis confirmed that the oxygen levels can be finely controlled and they can provide spectroscopic tools to monitor the oxygen levels of CMG-based systems. This system was applied to help provide a fundamental foundation for the correlation between the oxygen groups and capacitive features. This journal is",

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AU - Park, Gyutae

AU - Park, Sul Ki

AU - Han, Jongwoo

AU - Ko, Taeg Yeoung

AU - Lee, Seungjun

AU - Oh, Junghoon

AU - Ryu, Sunmin

AU - Park, Ho Seok

AU - Park, Sungjin

PY - 2014

Y1 - 2014

N2 - Oxygen-containing, chemically modified graphene (CMG) systems have been intensively investigated for various applications. The development of methods that allow fine control of the oxygen functionality would help better understand the mechanisms associated with CMGs, facilitate optimization of the material properties, and provide standards for chemical characterization purposes. Here, the authors report a new method for finely controlling the levels of oxygen in CMG materials based on the refluxing of aqueous colloidal suspensions of graphene oxide for specific reflux times, which does not require additional reducing agents. Chemical analysis confirmed that the oxygen levels can be finely controlled and they can provide spectroscopic tools to monitor the oxygen levels of CMG-based systems. This system was applied to help provide a fundamental foundation for the correlation between the oxygen groups and capacitive features. This journal is

AB - Oxygen-containing, chemically modified graphene (CMG) systems have been intensively investigated for various applications. The development of methods that allow fine control of the oxygen functionality would help better understand the mechanisms associated with CMGs, facilitate optimization of the material properties, and provide standards for chemical characterization purposes. Here, the authors report a new method for finely controlling the levels of oxygen in CMG materials based on the refluxing of aqueous colloidal suspensions of graphene oxide for specific reflux times, which does not require additional reducing agents. Chemical analysis confirmed that the oxygen levels can be finely controlled and they can provide spectroscopic tools to monitor the oxygen levels of CMG-based systems. This system was applied to help provide a fundamental foundation for the correlation between the oxygen groups and capacitive features. This journal is

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JO - RSC Advances

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Finely tuning oxygen functional groups of graphene materials and optimizing oxygen levels for capacitors

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