Electroanalytical Study of Methanol Oxidation and Oxygen Reduction at Carbon Nanohorns-Pt Nanostructured Electrodes

Zéhira Hamoudi; Aïssa Brahim; My Ali ElKhakani; Mohamed Mohamedi

doi:10.1002/elan.201200572

Electroanalytical Study of Methanol Oxidation and Oxygen Reduction at Carbon Nanohorns-Pt Nanostructured Electrodes

Zéhira Hamoudi, Aïssa Brahim, My Ali ElKhakani, Mohamed Mohamedi^*

^*Corresponding author for this work

Institut national de la recherche scientifique

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

10 Citations (Scopus)

Abstract

This work reports a comprehensive electroanalytical study of carbon nanohorns (CNHs) in electrochemical applications. Compared to other types of carbons, the bare CNHs electrode exhibited higher peak current densities and lowest anodic peak-to-cathodic peak separation of less than 50mV for the [Fe(CN)^4-]₆/[Fe(CN)^3-]₆ redox couple. Furthermore, CNHs exhibited excellent electrocatalyst supporting properties for porous Pt film towards methanol oxidation reaction reaching a peak current density of 127mAcm^-2 or peak current mass activity 184mAmg_Pt^-1. Regarding oxygen reduction reaction, an onset potential as positive as 0. 77V vs. Ag/AgCl was achieved with CNHs/porous Pt film.

Original language	English
Pages (from-to)	538-545
Number of pages	8
Journal	Electroanalysis
Volume	25
Issue number	2
DOIs	https://doi.org/10.1002/elan.201200572
Publication status	Published - Feb 2013
Externally published	Yes

Keywords

Carbon nanohorns
Electrocatalyst support
Methanol oxidation
Nanoparticles
Oxygen reduction

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10.1002/elan.201200572

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title = "Electroanalytical Study of Methanol Oxidation and Oxygen Reduction at Carbon Nanohorns-Pt Nanostructured Electrodes",

abstract = "This work reports a comprehensive electroanalytical study of carbon nanohorns (CNHs) in electrochemical applications. Compared to other types of carbons, the bare CNHs electrode exhibited higher peak current densities and lowest anodic peak-to-cathodic peak separation of less than 50mV for the [Fe(CN)4-]6/[Fe(CN)3-]6 redox couple. Furthermore, CNHs exhibited excellent electrocatalyst supporting properties for porous Pt film towards methanol oxidation reaction reaching a peak current density of 127mAcm-2 or peak current mass activity 184mAmgPt-1. Regarding oxygen reduction reaction, an onset potential as positive as 0. 77V vs. Ag/AgCl was achieved with CNHs/porous Pt film.",

keywords = "Carbon nanohorns, Electrocatalyst support, Methanol oxidation, Nanoparticles, Oxygen reduction",

author = "Z{\'e}hira Hamoudi and A{\"i}ssa Brahim and ElKhakani, \{My Ali\} and Mohamed Mohamedi",

year = "2013",

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doi = "10.1002/elan.201200572",

language = "English",

volume = "25",

pages = "538--545",

journal = "Electroanalysis",

issn = "1040-0397",

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TY - JOUR

T1 - Electroanalytical Study of Methanol Oxidation and Oxygen Reduction at Carbon Nanohorns-Pt Nanostructured Electrodes

AU - Hamoudi, Zéhira

AU - Brahim, Aïssa

AU - ElKhakani, My Ali

AU - Mohamedi, Mohamed

PY - 2013/2

Y1 - 2013/2

N2 - This work reports a comprehensive electroanalytical study of carbon nanohorns (CNHs) in electrochemical applications. Compared to other types of carbons, the bare CNHs electrode exhibited higher peak current densities and lowest anodic peak-to-cathodic peak separation of less than 50mV for the [Fe(CN)4-]6/[Fe(CN)3-]6 redox couple. Furthermore, CNHs exhibited excellent electrocatalyst supporting properties for porous Pt film towards methanol oxidation reaction reaching a peak current density of 127mAcm-2 or peak current mass activity 184mAmgPt-1. Regarding oxygen reduction reaction, an onset potential as positive as 0. 77V vs. Ag/AgCl was achieved with CNHs/porous Pt film.

AB - This work reports a comprehensive electroanalytical study of carbon nanohorns (CNHs) in electrochemical applications. Compared to other types of carbons, the bare CNHs electrode exhibited higher peak current densities and lowest anodic peak-to-cathodic peak separation of less than 50mV for the [Fe(CN)4-]6/[Fe(CN)3-]6 redox couple. Furthermore, CNHs exhibited excellent electrocatalyst supporting properties for porous Pt film towards methanol oxidation reaction reaching a peak current density of 127mAcm-2 or peak current mass activity 184mAmgPt-1. Regarding oxygen reduction reaction, an onset potential as positive as 0. 77V vs. Ag/AgCl was achieved with CNHs/porous Pt film.

KW - Carbon nanohorns

KW - Electrocatalyst support

KW - Methanol oxidation

KW - Nanoparticles

KW - Oxygen reduction

UR - https://www.scopus.com/pages/publications/84873580393

U2 - 10.1002/elan.201200572

DO - 10.1002/elan.201200572

M3 - Article

AN - SCOPUS:84873580393

SN - 1040-0397

VL - 25

SP - 538

EP - 545

JO - Electroanalysis

JF - Electroanalysis

IS - 2

ER -

Electroanalytical Study of Methanol Oxidation and Oxygen Reduction at Carbon Nanohorns-Pt Nanostructured Electrodes

Abstract

Keywords

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