Ruthenium supported on nitrogen-Doped carbon nanotubes for the oxygen reduction reaction in alkaline media

L. F. Mabena; R. M. Modibedi; S. Sinha Ray; N. J. Coville

doi:10.1002/fuce.201200001

Ruthenium supported on nitrogen-Doped carbon nanotubes for the oxygen reduction reaction in alkaline media

L. F. Mabena, R. M. Modibedi, S. Sinha Ray, N. J. Coville

Chemical Sciences

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

9 Citations (Scopus)

Abstract

Nitrogen-doped carbon nanotubes (N-CNTs) prepared via thermal chemical vapor deposition (CVD), were used to support ruthenium (Ru) nanoparticles made using a microwave assisted reduction technique. The amount of Ru deposited on N-CNTs was varied between 0 and 10 wt.%. The activity of the prepared nanocatalysts toward the oxygen reduction reaction (ORR) was characterized using the rotating disk electrode and voltammetry techniques. The ORR activity was higher at lower concentrations of Ru on N-CNTs. The four electron pathway of ORR is more favorable on 2Ru/NCNTs and 5Ru/N-CNTs than 10Ru/N-CNTs.

Original language	English
Pages (from-to)	862-868
Number of pages	7
Journal	Fuel Cells
Volume	12
Issue number	5
DOIs	https://doi.org/10.1002/fuce.201200001
Publication status	Published - Oct 2012

Keywords

Alkaline-Medium
Microwave
N-CNTs
Oxygen Reduction Reaction
Ru Nanocatalyst

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology

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10.1002/fuce.201200001

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title = "Ruthenium supported on nitrogen-Doped carbon nanotubes for the oxygen reduction reaction in alkaline media",

abstract = "Nitrogen-doped carbon nanotubes (N-CNTs) prepared via thermal chemical vapor deposition (CVD), were used to support ruthenium (Ru) nanoparticles made using a microwave assisted reduction technique. The amount of Ru deposited on N-CNTs was varied between 0 and 10 wt.%. The activity of the prepared nanocatalysts toward the oxygen reduction reaction (ORR) was characterized using the rotating disk electrode and voltammetry techniques. The ORR activity was higher at lower concentrations of Ru on N-CNTs. The four electron pathway of ORR is more favorable on 2Ru/NCNTs and 5Ru/N-CNTs than 10Ru/N-CNTs.",

keywords = "Alkaline-Medium, Microwave, N-CNTs, Oxygen Reduction Reaction, Ru Nanocatalyst",

author = "Mabena, {L. F.} and Modibedi, {R. M.} and Ray, {S. Sinha} and Coville, {N. J.}",

year = "2012",

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T1 - Ruthenium supported on nitrogen-Doped carbon nanotubes for the oxygen reduction reaction in alkaline media

AU - Mabena, L. F.

AU - Modibedi, R. M.

AU - Ray, S. Sinha

AU - Coville, N. J.

PY - 2012/10

Y1 - 2012/10

N2 - Nitrogen-doped carbon nanotubes (N-CNTs) prepared via thermal chemical vapor deposition (CVD), were used to support ruthenium (Ru) nanoparticles made using a microwave assisted reduction technique. The amount of Ru deposited on N-CNTs was varied between 0 and 10 wt.%. The activity of the prepared nanocatalysts toward the oxygen reduction reaction (ORR) was characterized using the rotating disk electrode and voltammetry techniques. The ORR activity was higher at lower concentrations of Ru on N-CNTs. The four electron pathway of ORR is more favorable on 2Ru/NCNTs and 5Ru/N-CNTs than 10Ru/N-CNTs.

AB - Nitrogen-doped carbon nanotubes (N-CNTs) prepared via thermal chemical vapor deposition (CVD), were used to support ruthenium (Ru) nanoparticles made using a microwave assisted reduction technique. The amount of Ru deposited on N-CNTs was varied between 0 and 10 wt.%. The activity of the prepared nanocatalysts toward the oxygen reduction reaction (ORR) was characterized using the rotating disk electrode and voltammetry techniques. The ORR activity was higher at lower concentrations of Ru on N-CNTs. The four electron pathway of ORR is more favorable on 2Ru/NCNTs and 5Ru/N-CNTs than 10Ru/N-CNTs.

KW - Alkaline-Medium

KW - Microwave

KW - N-CNTs

KW - Oxygen Reduction Reaction

KW - Ru Nanocatalyst

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DO - 10.1002/fuce.201200001

M3 - Article

AN - SCOPUS:84867611046

SN - 1615-6846

VL - 12

SP - 862

EP - 868

JO - Fuel Cells

JF - Fuel Cells

IS - 5

ER -

Ruthenium supported on nitrogen-Doped carbon nanotubes for the oxygen reduction reaction in alkaline media

Abstract

Keywords

ASJC Scopus subject areas

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