Effect of KOH activation on electrochemical behaviors of graphite nanofibers

Hye Min Yoo; Byung Gak Min; Kyu Hwan Lee; Joon Hyung Byun; Soo Jin Park

doi:10.7317/pk.2012.36.3.321

Effect of KOH activation on electrochemical behaviors of graphite nanofibers

Hye Min Yoo, Byung Gak Min, Kyu Hwan Lee, Joon Hyung Byun, Soo Jin Park

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

2 Scopus citations

Abstract

In this work, we prepared the activated graphite nanofibers (A-GNFs) via chemical activation with KOH/ GNFs ratios in a range of 0 to 5. The effect of KOH activation was studied in the surface and pore properties of the samples for electrochemical performance. The surface properties of A-GNFs were characterized by XRD and SEM measurements. The textural properties of the A-GNFs were investigated by N ₂/77 K adsorption isotherms using Brunauer-Emmett-Teller (BET) equation. Their electrochemical behaviors were investigated by cyclic voltammetry and galvanostatic charge-discharge performance. From the results, electrochemical performances of the A-GNFs were improved with increasing the ratio of KOH reagent. It was found that specific surface area and total pore volume of the A-GNFs were increased by KOH activation.

Original language	English
Pages (from-to)	321-325
Number of pages	5
Journal	Polymer (Korea)
Volume	36
Issue number	3
DOIs	https://doi.org/10.7317/pk.2012.36.3.321
State	Published - May 2012

Keywords

Chemical activation
Electrochemical properties
Graphite nanofibers
Specific capacitance

Access to Document

10.7317/pk.2012.36.3.321

Cite this

@article{6ae082261bb14452b0408a4e0adae9cd,

title = "Effect of KOH activation on electrochemical behaviors of graphite nanofibers",

abstract = "In this work, we prepared the activated graphite nanofibers (A-GNFs) via chemical activation with KOH/ GNFs ratios in a range of 0 to 5. The effect of KOH activation was studied in the surface and pore properties of the samples for electrochemical performance. The surface properties of A-GNFs were characterized by XRD and SEM measurements. The textural properties of the A-GNFs were investigated by N 2/77 K adsorption isotherms using Brunauer-Emmett-Teller (BET) equation. Their electrochemical behaviors were investigated by cyclic voltammetry and galvanostatic charge-discharge performance. From the results, electrochemical performances of the A-GNFs were improved with increasing the ratio of KOH reagent. It was found that specific surface area and total pore volume of the A-GNFs were increased by KOH activation.",

keywords = "Chemical activation, Electrochemical properties, Graphite nanofibers, Specific capacitance",

author = "Yoo, {Hye Min} and Min, {Byung Gak} and Lee, {Kyu Hwan} and Byun, {Joon Hyung} and Park, {Soo Jin}",

year = "2012",

month = may,

doi = "10.7317/pk.2012.36.3.321",

language = "English",

volume = "36",

pages = "321--325",

journal = "Polymer (Korea)",

issn = "0379-153X",

publisher = "Polymer Society of Korea",

number = "3",

}

TY - JOUR

T1 - Effect of KOH activation on electrochemical behaviors of graphite nanofibers

AU - Yoo, Hye Min

AU - Min, Byung Gak

AU - Lee, Kyu Hwan

AU - Byun, Joon Hyung

AU - Park, Soo Jin

PY - 2012/5

Y1 - 2012/5

N2 - In this work, we prepared the activated graphite nanofibers (A-GNFs) via chemical activation with KOH/ GNFs ratios in a range of 0 to 5. The effect of KOH activation was studied in the surface and pore properties of the samples for electrochemical performance. The surface properties of A-GNFs were characterized by XRD and SEM measurements. The textural properties of the A-GNFs were investigated by N 2/77 K adsorption isotherms using Brunauer-Emmett-Teller (BET) equation. Their electrochemical behaviors were investigated by cyclic voltammetry and galvanostatic charge-discharge performance. From the results, electrochemical performances of the A-GNFs were improved with increasing the ratio of KOH reagent. It was found that specific surface area and total pore volume of the A-GNFs were increased by KOH activation.

AB - In this work, we prepared the activated graphite nanofibers (A-GNFs) via chemical activation with KOH/ GNFs ratios in a range of 0 to 5. The effect of KOH activation was studied in the surface and pore properties of the samples for electrochemical performance. The surface properties of A-GNFs were characterized by XRD and SEM measurements. The textural properties of the A-GNFs were investigated by N 2/77 K adsorption isotherms using Brunauer-Emmett-Teller (BET) equation. Their electrochemical behaviors were investigated by cyclic voltammetry and galvanostatic charge-discharge performance. From the results, electrochemical performances of the A-GNFs were improved with increasing the ratio of KOH reagent. It was found that specific surface area and total pore volume of the A-GNFs were increased by KOH activation.

KW - Chemical activation

KW - Electrochemical properties

KW - Graphite nanofibers

KW - Specific capacitance

UR - http://www.scopus.com/inward/record.url?scp=84862020658&partnerID=8YFLogxK

U2 - 10.7317/pk.2012.36.3.321

DO - 10.7317/pk.2012.36.3.321

M3 - Article

AN - SCOPUS:84862020658

SN - 0379-153X

VL - 36

SP - 321

EP - 325

JO - Polymer (Korea)

JF - Polymer (Korea)

IS - 3

ER -

Effect of KOH activation on electrochemical behaviors of graphite nanofibers

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this