Electrocatalytic activity of nitrogen plasma treated vertically aligned carbon nanotube carpets towards oxygen reduction reaction

Palaniappan Subramanian; Asaf Cohen; Eti Teblum; Gilbert D. Nessim; Edward Bormasheko; Alex Schechter

doi:10.1016/j.elecom.2014.10.005

Electrocatalytic activity of nitrogen plasma treated vertically aligned carbon nanotube carpets towards oxygen reduction reaction

Palaniappan Subramanian, Asaf Cohen, Eti Teblum, Gilbert D. Nessim, Edward Bormasheko, Alex Schechter

Department of Chemistry

Ariel University

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

25 Scopus citations

Abstract

We developed a simple and rapid procedure to prepare nitrogen-doped vertically aligned carbon nanotube carpets (VA-NCNTs). The VA-NCNTs were obtained by nitrogen plasma treatment of the vertically aligned multi-walled carbon nanotube carpets (VA-CNTs) directly grown on stainless steel substrates by chemical vapor deposition. This novel electrochemical interface reduces oxygen in lower overpotential under basic condition (onset potential at - 0.12 V vs. Ag/AgCl at pH 13) compared to untreated VA-CNTs (onset potential at - 0.22 V vs. Ag/AgCl at pH 13). The robustness of these nanostructures and ease of fabrication make VA-NCNTs promising non-platinum oxygen reduction catalysts that could be employed as cathode catalysts in real-time operation of alkaline fuel cell systems.

Original language	English
Pages (from-to)	42-46
Number of pages	5
Journal	Electrochemistry Communications
Volume	49
DOIs	https://doi.org/10.1016/j.elecom.2014.10.005
State	Published - Dec 2014

Bibliographical note

Publisher Copyright:
© 2014, Elsevier Inc. All rights reserved.

Funding

The funding of the Israel Science Foundation ( ISF ) through the Israel National Research Center for Electrochemical Propulsion (INREP) and I-CORE Program (number 2797/11 ) is gratefully acknowledged.

Funders	Funder number
Israel National Research Center for Electrochemical Propulsion
Israel Science Foundation
Israeli Centers for Research Excellence	2797/11

Keywords

Carbon nanotube carpets
Catalysts
Chemical vapor deposition
Nitrogen plasma
Oxygen reduction

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10.1016/j.elecom.2014.10.005

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abstract = "We developed a simple and rapid procedure to prepare nitrogen-doped vertically aligned carbon nanotube carpets (VA-NCNTs). The VA-NCNTs were obtained by nitrogen plasma treatment of the vertically aligned multi-walled carbon nanotube carpets (VA-CNTs) directly grown on stainless steel substrates by chemical vapor deposition. This novel electrochemical interface reduces oxygen in lower overpotential under basic condition (onset potential at - 0.12 V vs. Ag/AgCl at pH 13) compared to untreated VA-CNTs (onset potential at - 0.22 V vs. Ag/AgCl at pH 13). The robustness of these nanostructures and ease of fabrication make VA-NCNTs promising non-platinum oxygen reduction catalysts that could be employed as cathode catalysts in real-time operation of alkaline fuel cell systems.",

keywords = "Carbon nanotube carpets, Catalysts, Chemical vapor deposition, Nitrogen plasma, Oxygen reduction",

author = "Palaniappan Subramanian and Asaf Cohen and Eti Teblum and Nessim, \{Gilbert D.\} and Edward Bormasheko and Alex Schechter",

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AU - Subramanian, Palaniappan

AU - Cohen, Asaf

AU - Teblum, Eti

AU - Nessim, Gilbert D.

AU - Bormasheko, Edward

AU - Schechter, Alex

PY - 2014/12

Y1 - 2014/12

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AB - We developed a simple and rapid procedure to prepare nitrogen-doped vertically aligned carbon nanotube carpets (VA-NCNTs). The VA-NCNTs were obtained by nitrogen plasma treatment of the vertically aligned multi-walled carbon nanotube carpets (VA-CNTs) directly grown on stainless steel substrates by chemical vapor deposition. This novel electrochemical interface reduces oxygen in lower overpotential under basic condition (onset potential at - 0.12 V vs. Ag/AgCl at pH 13) compared to untreated VA-CNTs (onset potential at - 0.22 V vs. Ag/AgCl at pH 13). The robustness of these nanostructures and ease of fabrication make VA-NCNTs promising non-platinum oxygen reduction catalysts that could be employed as cathode catalysts in real-time operation of alkaline fuel cell systems.

KW - Carbon nanotube carpets

KW - Catalysts

KW - Chemical vapor deposition

KW - Nitrogen plasma

KW - Oxygen reduction

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Electrocatalytic activity of nitrogen plasma treated vertically aligned carbon nanotube carpets towards oxygen reduction reaction

Abstract

Bibliographical note

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Keywords

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