Capacitance of MnO2 micro-flowers decorated CNFs in alkaline electrolyte and its bi-functional electrocatalytic activity toward hydrazine oxidation

Seong Min Ji; Zafar Khan Ghouri; Khaled Elsaid; Yo Han Ko; Saeed Al-Meer; M. I. Ahmad; Dong Ick Son; Hak Yong Kim

doi:10.20964/2017.03.73

Capacitance of MnO₂ micro-flowers decorated CNFs in alkaline electrolyte and its bi-functional electrocatalytic activity toward hydrazine oxidation

Seong Min Ji, Zafar Khan Ghouri, Khaled Elsaid, Yo Han Ko, Saeed Al-Meer, M. I. Ahmad, Dong Ick Son, Hak Yong Kim^*

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

Well-dispersed MnO₂ micro-flowers were grown directly on carbon nanofibers via a simple hydrothermal technique without any template. Structure and morphology were characterized by X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) equipped with rapid energy dispersive analysis X-ray (EDX). The appealed characterization techniques specified that the obtained material is carbon nanofibers decorated by MnO₂ micro-flowers. Super capacitive performance of the MnO₂ micro-flowers decorated CNFs as active electrode material was evaluated by cyclic voltammetry (CV) in alkaline medium and yield a reasonable specific capacitance of 120 Fg^-1 at 5 mV s^-1. As an electrocatalyst for hydrazine oxidation, the MnO₂ micro-flowers decorated CNFs showed high current density. The impressive bi-functional electrochemical activity of MnO₂ micro-flowers decorated CNFs is mainly attributed to its unique architectural structure.

Original language	English
Pages (from-to)	2583-2592
Number of pages	10
Journal	International Journal of Electrochemical Science
Volume	12
Issue number	3
DOIs	https://doi.org/10.20964/2017.03.73
Publication status	Published - 1 Mar 2017
Externally published	Yes

Keywords

Bi-functional
Carbon nanofibers
Direct liquid fuel cells
MnO, Hydrazine
Supercapacitors

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10.20964/2017.03.73

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@article{d4ae9ba369ab4b79bd41b0f5a8454f16,

title = "Capacitance of MnO2 micro-flowers decorated CNFs in alkaline electrolyte and its bi-functional electrocatalytic activity toward hydrazine oxidation",

abstract = "Well-dispersed MnO2 micro-flowers were grown directly on carbon nanofibers via a simple hydrothermal technique without any template. Structure and morphology were characterized by X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) equipped with rapid energy dispersive analysis X-ray (EDX). The appealed characterization techniques specified that the obtained material is carbon nanofibers decorated by MnO2 micro-flowers. Super capacitive performance of the MnO2 micro-flowers decorated CNFs as active electrode material was evaluated by cyclic voltammetry (CV) in alkaline medium and yield a reasonable specific capacitance of 120 Fg-1 at 5 mV s-1. As an electrocatalyst for hydrazine oxidation, the MnO2 micro-flowers decorated CNFs showed high current density. The impressive bi-functional electrochemical activity of MnO2 micro-flowers decorated CNFs is mainly attributed to its unique architectural structure.",

keywords = "Bi-functional, Carbon nanofibers, Direct liquid fuel cells, MnO, Hydrazine, Supercapacitors",

author = "Ji, {Seong Min} and Ghouri, {Zafar Khan} and Khaled Elsaid and Ko, {Yo Han} and Saeed Al-Meer and Ahmad, {M. I.} and Son, {Dong Ick} and Kim, {Hak Yong}",

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year = "2017",

month = mar,

day = "1",

doi = "10.20964/2017.03.73",

language = "English",

volume = "12",

pages = "2583--2592",

journal = "International Journal of Electrochemical Science",

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}

Capacitance of MnO₂ micro-flowers decorated CNFs in alkaline electrolyte and its bi-functional electrocatalytic activity toward hydrazine oxidation. / Ji, Seong Min; Ghouri, Zafar Khan; Elsaid, Khaled et al.
In: International Journal of Electrochemical Science, Vol. 12, No. 3, 01.03.2017, p. 2583-2592.

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

TY - JOUR

T1 - Capacitance of MnO2 micro-flowers decorated CNFs in alkaline electrolyte and its bi-functional electrocatalytic activity toward hydrazine oxidation

AU - Ji, Seong Min

AU - Ghouri, Zafar Khan

AU - Elsaid, Khaled

AU - Ko, Yo Han

AU - Al-Meer, Saeed

AU - Ahmad, M. I.

AU - Son, Dong Ick

AU - Kim, Hak Yong

PY - 2017/3/1

Y1 - 2017/3/1

N2 - Well-dispersed MnO2 micro-flowers were grown directly on carbon nanofibers via a simple hydrothermal technique without any template. Structure and morphology were characterized by X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) equipped with rapid energy dispersive analysis X-ray (EDX). The appealed characterization techniques specified that the obtained material is carbon nanofibers decorated by MnO2 micro-flowers. Super capacitive performance of the MnO2 micro-flowers decorated CNFs as active electrode material was evaluated by cyclic voltammetry (CV) in alkaline medium and yield a reasonable specific capacitance of 120 Fg-1 at 5 mV s-1. As an electrocatalyst for hydrazine oxidation, the MnO2 micro-flowers decorated CNFs showed high current density. The impressive bi-functional electrochemical activity of MnO2 micro-flowers decorated CNFs is mainly attributed to its unique architectural structure.

AB - Well-dispersed MnO2 micro-flowers were grown directly on carbon nanofibers via a simple hydrothermal technique without any template. Structure and morphology were characterized by X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) equipped with rapid energy dispersive analysis X-ray (EDX). The appealed characterization techniques specified that the obtained material is carbon nanofibers decorated by MnO2 micro-flowers. Super capacitive performance of the MnO2 micro-flowers decorated CNFs as active electrode material was evaluated by cyclic voltammetry (CV) in alkaline medium and yield a reasonable specific capacitance of 120 Fg-1 at 5 mV s-1. As an electrocatalyst for hydrazine oxidation, the MnO2 micro-flowers decorated CNFs showed high current density. The impressive bi-functional electrochemical activity of MnO2 micro-flowers decorated CNFs is mainly attributed to its unique architectural structure.

KW - Bi-functional

KW - Carbon nanofibers

KW - Direct liquid fuel cells

KW - MnO, Hydrazine

KW - Supercapacitors

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DO - 10.20964/2017.03.73

M3 - Article

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SN - 1452-3981

VL - 12

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JO - International Journal of Electrochemical Science

JF - International Journal of Electrochemical Science

IS - 3

ER -

Capacitance of MnO₂ micro-flowers decorated CNFs in alkaline electrolyte and its bi-functional electrocatalytic activity toward hydrazine oxidation

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Keywords

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