Energy storage of thermally reduced graphene oxide

Jung Min Kim; Won G. Hong; Sang Moon Lee; Sung Jin Chang; Yongseok Jun; Byung Hoon Kim; Hae Jin Kim

doi:10.1016/j.ijhydene.2013.12.144

Energy storage of thermally reduced graphene oxide

Jung Min Kim, Won G. Hong, Sang Moon Lee, Sung Jin Chang, Yongseok Jun, Byung Hoon Kim, Hae Jin Kim

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

26 Citations (Scopus)

Abstract

The energy-storage capacity of reduced graphene oxide (rGO) is investigated in this study. The rGO used here was prepared by thermal annealing under a nitrogen atmosphere at various temperatures (300, 400, 500 and 600 C). We measured high-pressure H₂ isotherms at 77 K and the electrochemical performance of four rGO samples as anode materials in Li-ion batteries (LIBs). A maximum H₂ storage capacity of ∼5.0 wt% and a reversible charge/discharge capacity of 1220 mAh/g at a current density of 30 mA/g were achieved with rGO annealed at 400 C with a pore size of approximately 6.7 Å. Thus, an optimal pore size exists for hydrogen and lithium storage, which is similar to the optimum interlayer distance (6.5 Å) of graphene oxide for hydrogen storage applications.

Original language	English
Pages (from-to)	3799-3804
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	39
Issue number	8
DOIs	https://doi.org/10.1016/j.ijhydene.2013.12.144
Publication status	Published - 2014 Mar 6
Externally published	Yes

Bibliographical note

Funding Information:
Byung Hoon Kim was supported by the Incheon National University Research Grant in 20130400 .

Keywords

Graphene oxide
Hydrogen storage
Li-ion batteries
Optimal pore size
Thermal annealing

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2013.12.144

Cite this

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title = "Energy storage of thermally reduced graphene oxide",

abstract = "The energy-storage capacity of reduced graphene oxide (rGO) is investigated in this study. The rGO used here was prepared by thermal annealing under a nitrogen atmosphere at various temperatures (300, 400, 500 and 600 C). We measured high-pressure H2 isotherms at 77 K and the electrochemical performance of four rGO samples as anode materials in Li-ion batteries (LIBs). A maximum H2 storage capacity of ∼5.0 wt% and a reversible charge/discharge capacity of 1220 mAh/g at a current density of 30 mA/g were achieved with rGO annealed at 400 C with a pore size of approximately 6.7 {\AA}. Thus, an optimal pore size exists for hydrogen and lithium storage, which is similar to the optimum interlayer distance (6.5 {\AA}) of graphene oxide for hydrogen storage applications.",

keywords = "Graphene oxide, Hydrogen storage, Li-ion batteries, Optimal pore size, Thermal annealing",

author = "Kim, {Jung Min} and Hong, {Won G.} and Lee, {Sang Moon} and Chang, {Sung Jin} and Yongseok Jun and Kim, {Byung Hoon} and Kim, {Hae Jin}",

note = "Funding Information: Byung Hoon Kim was supported by the Incheon National University Research Grant in 20130400 . ",

year = "2014",

month = mar,

day = "6",

doi = "10.1016/j.ijhydene.2013.12.144",

language = "English",

volume = "39",

pages = "3799--3804",

journal = "International Journal of Hydrogen Energy",

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TY - JOUR

T1 - Energy storage of thermally reduced graphene oxide

AU - Kim, Jung Min

AU - Hong, Won G.

AU - Lee, Sang Moon

AU - Chang, Sung Jin

AU - Jun, Yongseok

AU - Kim, Byung Hoon

AU - Kim, Hae Jin

N1 - Funding Information: Byung Hoon Kim was supported by the Incheon National University Research Grant in 20130400 .

PY - 2014/3/6

Y1 - 2014/3/6

N2 - The energy-storage capacity of reduced graphene oxide (rGO) is investigated in this study. The rGO used here was prepared by thermal annealing under a nitrogen atmosphere at various temperatures (300, 400, 500 and 600 C). We measured high-pressure H2 isotherms at 77 K and the electrochemical performance of four rGO samples as anode materials in Li-ion batteries (LIBs). A maximum H2 storage capacity of ∼5.0 wt% and a reversible charge/discharge capacity of 1220 mAh/g at a current density of 30 mA/g were achieved with rGO annealed at 400 C with a pore size of approximately 6.7 Å. Thus, an optimal pore size exists for hydrogen and lithium storage, which is similar to the optimum interlayer distance (6.5 Å) of graphene oxide for hydrogen storage applications.

AB - The energy-storage capacity of reduced graphene oxide (rGO) is investigated in this study. The rGO used here was prepared by thermal annealing under a nitrogen atmosphere at various temperatures (300, 400, 500 and 600 C). We measured high-pressure H2 isotherms at 77 K and the electrochemical performance of four rGO samples as anode materials in Li-ion batteries (LIBs). A maximum H2 storage capacity of ∼5.0 wt% and a reversible charge/discharge capacity of 1220 mAh/g at a current density of 30 mA/g were achieved with rGO annealed at 400 C with a pore size of approximately 6.7 Å. Thus, an optimal pore size exists for hydrogen and lithium storage, which is similar to the optimum interlayer distance (6.5 Å) of graphene oxide for hydrogen storage applications.

KW - Graphene oxide

KW - Hydrogen storage

KW - Li-ion batteries

KW - Optimal pore size

KW - Thermal annealing

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DO - 10.1016/j.ijhydene.2013.12.144

M3 - Article

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SN - 0360-3199

VL - 39

SP - 3799

EP - 3804

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 8

ER -

Energy storage of thermally reduced graphene oxide

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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