The effect of embedded vanadium catalyst on activated electrospun CFs for hydrogen storage

Ji Sun Im; Ohseob Kwon; Young Ho Kim; Soo Jin Park; Young Seak Lee

doi:10.1016/j.micromeso.2008.02.027

The effect of embedded vanadium catalyst on activated electrospun CFs for hydrogen storage

Ji Sun Im, Ohseob Kwon, Young Ho Kim, Soo Jin Park, Young Seak Lee

Chungnam National University

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

71 Scopus citations

Abstract

In this paper, the effect of embedding vanadium pentoxide in electrospun carbon fiber was investigated in relation to textural properties and hydrogen storage behavior. Electrospun carbon fibers involving vanadium were prepared from polyacrylonitrile/N,N-dimethyl formamide/vanadium pentoxide through electrospinning method and heat treatment. Chemical activation of electrospun carbon fibers was carried out in order to generate the pore by using potassium hydroxide as a chemical agent. Eventually, vanadium embedded activated electrospun carbon fibers (AECFs) with high specific surface area 2780 m²/g were prepared as a hydrogen storage medium. As the effects of vanadium pentoxide, it was found that dissociated oxygen from vanadium pentoxide in electrospun fibers would generate the ultra-micropore (∼0.6 nm) by forming carbon monoxide and carbon dioxide during the carbonization. Also, vanadium in electrospun carbon fibers is considered to act as a catalyst for the improved capacity of hydrogen adsorption. Vanadium embedded AECFs have the high capacity of hydrogen storage, about 2.5 wt% at room temperature and 100 bar.

Original language	English
Pages (from-to)	514-521
Number of pages	8
Journal	Microporous and Mesoporous Materials
Volume	115
Issue number	3
DOIs	https://doi.org/10.1016/j.micromeso.2008.02.027
State	Published - 1 Nov 2008

Bibliographical note

Funding Information:
This research was performed for the Hydrogen Energy R&D Center, one of the 21st Century Frontier R&D Program, funded by the Ministry of Science and Technology of Korea. The authors would like to thank Mr. Tae-Sung Bae at KBSI (Korea Basic Science Institute) in Jeonju center for providing FE-SEM images.

Keywords

Carbon fiber
Chemical activation
Electrospinning
Hydrogen storage
Vanadium pentoxide

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10.1016/j.micromeso.2008.02.027

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title = "The effect of embedded vanadium catalyst on activated electrospun CFs for hydrogen storage",

abstract = "In this paper, the effect of embedding vanadium pentoxide in electrospun carbon fiber was investigated in relation to textural properties and hydrogen storage behavior. Electrospun carbon fibers involving vanadium were prepared from polyacrylonitrile/N,N-dimethyl formamide/vanadium pentoxide through electrospinning method and heat treatment. Chemical activation of electrospun carbon fibers was carried out in order to generate the pore by using potassium hydroxide as a chemical agent. Eventually, vanadium embedded activated electrospun carbon fibers (AECFs) with high specific surface area 2780 m2/g were prepared as a hydrogen storage medium. As the effects of vanadium pentoxide, it was found that dissociated oxygen from vanadium pentoxide in electrospun fibers would generate the ultra-micropore (∼0.6 nm) by forming carbon monoxide and carbon dioxide during the carbonization. Also, vanadium in electrospun carbon fibers is considered to act as a catalyst for the improved capacity of hydrogen adsorption. Vanadium embedded AECFs have the high capacity of hydrogen storage, about 2.5 wt% at room temperature and 100 bar.",

keywords = "Carbon fiber, Chemical activation, Electrospinning, Hydrogen storage, Vanadium pentoxide",

author = "Im, {Ji Sun} and Ohseob Kwon and Kim, {Young Ho} and Park, {Soo Jin} and Lee, {Young Seak}",

note = "Funding Information: This research was performed for the Hydrogen Energy R&D Center, one of the 21st Century Frontier R&D Program, funded by the Ministry of Science and Technology of Korea. The authors would like to thank Mr. Tae-Sung Bae at KBSI (Korea Basic Science Institute) in Jeonju center for providing FE-SEM images.",

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doi = "10.1016/j.micromeso.2008.02.027",

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T1 - The effect of embedded vanadium catalyst on activated electrospun CFs for hydrogen storage

AU - Im, Ji Sun

AU - Kwon, Ohseob

AU - Kim, Young Ho

AU - Park, Soo Jin

AU - Lee, Young Seak

N1 - Funding Information: This research was performed for the Hydrogen Energy R&D Center, one of the 21st Century Frontier R&D Program, funded by the Ministry of Science and Technology of Korea. The authors would like to thank Mr. Tae-Sung Bae at KBSI (Korea Basic Science Institute) in Jeonju center for providing FE-SEM images.

PY - 2008/11/1

Y1 - 2008/11/1

N2 - In this paper, the effect of embedding vanadium pentoxide in electrospun carbon fiber was investigated in relation to textural properties and hydrogen storage behavior. Electrospun carbon fibers involving vanadium were prepared from polyacrylonitrile/N,N-dimethyl formamide/vanadium pentoxide through electrospinning method and heat treatment. Chemical activation of electrospun carbon fibers was carried out in order to generate the pore by using potassium hydroxide as a chemical agent. Eventually, vanadium embedded activated electrospun carbon fibers (AECFs) with high specific surface area 2780 m2/g were prepared as a hydrogen storage medium. As the effects of vanadium pentoxide, it was found that dissociated oxygen from vanadium pentoxide in electrospun fibers would generate the ultra-micropore (∼0.6 nm) by forming carbon monoxide and carbon dioxide during the carbonization. Also, vanadium in electrospun carbon fibers is considered to act as a catalyst for the improved capacity of hydrogen adsorption. Vanadium embedded AECFs have the high capacity of hydrogen storage, about 2.5 wt% at room temperature and 100 bar.

AB - In this paper, the effect of embedding vanadium pentoxide in electrospun carbon fiber was investigated in relation to textural properties and hydrogen storage behavior. Electrospun carbon fibers involving vanadium were prepared from polyacrylonitrile/N,N-dimethyl formamide/vanadium pentoxide through electrospinning method and heat treatment. Chemical activation of electrospun carbon fibers was carried out in order to generate the pore by using potassium hydroxide as a chemical agent. Eventually, vanadium embedded activated electrospun carbon fibers (AECFs) with high specific surface area 2780 m2/g were prepared as a hydrogen storage medium. As the effects of vanadium pentoxide, it was found that dissociated oxygen from vanadium pentoxide in electrospun fibers would generate the ultra-micropore (∼0.6 nm) by forming carbon monoxide and carbon dioxide during the carbonization. Also, vanadium in electrospun carbon fibers is considered to act as a catalyst for the improved capacity of hydrogen adsorption. Vanadium embedded AECFs have the high capacity of hydrogen storage, about 2.5 wt% at room temperature and 100 bar.

KW - Carbon fiber

KW - Chemical activation

KW - Electrospinning

KW - Hydrogen storage

KW - Vanadium pentoxide

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The effect of embedded vanadium catalyst on activated electrospun CFs for hydrogen storage

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