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

Inha University
Korea National University of Transportation
Korea Institute of Materials Science
Composite Materials Group

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

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.

langue originale	Anglais
Pages (de - à)	321-325
Nombre de pages	5
journal	Polymer (Korea)
Volume	36
Numéro de publication	3
Les DOIs	https://doi.org/10.7317/pk.2012.36.3.321
état	Publié - 1 mai 2012
Modification externe	Oui

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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,

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doi = "10.7317/pk.2012.36.3.321",

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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 - 2012/5/1

Y1 - 2012/5/1

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 - https://www.scopus.com/pages/publications/84862020658

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

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