Electrochemical Reduction of Oxygen on Heat-Treated Pd Nanoparticle/Multi-Walled Carbon Nanotube Composites in Alkaline Solution

Kristel Jukk; Nadezda Alexeyeva; Peeter Ritslaid; Jekaterina Kozlova; Väino Sammelselg; Kaido Tammeveski

doi:10.1007/s12678-012-0117-y

Electrochemical Reduction of Oxygen on Heat-Treated Pd Nanoparticle/Multi-Walled Carbon Nanotube Composites in Alkaline Solution

Kristel Jukk
, Nadezda Alexeyeva
, Peeter Ritslaid
, Jekaterina Kozlova
, Väino Sammelselg
, Kaido Tammeveski^*

^*Corresponding author for this work

University of Tartu

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

41 Citations (Scopus)

Abstract

Palladium nanoparticle/multi-walled carbon nanotube (PdNP/MWCNT) composites were prepared using magnetron sputtering of Pd followed by heat treatment at different temperatures. The oxygen reduction experiments were performed to evaluate the PdNP/MWCNT catalyst activity for fuel cell cathodes in 0. 1 M KOH solution. Scanning electron microscopy was employed to examine the changes in surface morphology of the PdNP/MWCNT composites upon annealing. Electrochemical behaviour of the prepared PdNP/MWCNT catalysts was investigated using cyclic voltammetry and the rotating disk electrode (RDE) methods. The RDE results revealed that the PdNP/MWCNT composite annealed at 500 °C is the most active catalyst for the four-electron reduction of O₂, and specific activity of this material is higher than that of bulk Pd.

Original language	English
Pages (from-to)	42-48
Number of pages	7
Journal	Electrocatalysis
Volume	4
Issue number	1
DOIs	https://doi.org/10.1007/s12678-012-0117-y
Publication status	Published - Mar 2013
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Carbon nanotubes
Electrocatalysis
Magnetron sputtering
Oxygen reduction
Pd nanoparticles

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10.1007/s12678-012-0117-y

Cite this

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title = "Electrochemical Reduction of Oxygen on Heat-Treated Pd Nanoparticle/Multi-Walled Carbon Nanotube Composites in Alkaline Solution",

abstract = "Palladium nanoparticle/multi-walled carbon nanotube (PdNP/MWCNT) composites were prepared using magnetron sputtering of Pd followed by heat treatment at different temperatures. The oxygen reduction experiments were performed to evaluate the PdNP/MWCNT catalyst activity for fuel cell cathodes in 0. 1 M KOH solution. Scanning electron microscopy was employed to examine the changes in surface morphology of the PdNP/MWCNT composites upon annealing. Electrochemical behaviour of the prepared PdNP/MWCNT catalysts was investigated using cyclic voltammetry and the rotating disk electrode (RDE) methods. The RDE results revealed that the PdNP/MWCNT composite annealed at 500 °C is the most active catalyst for the four-electron reduction of O2, and specific activity of this material is higher than that of bulk Pd.",

keywords = "Carbon nanotubes, Electrocatalysis, Magnetron sputtering, Oxygen reduction, Pd nanoparticles",

author = "Kristel Jukk and Nadezda Alexeyeva and Peeter Ritslaid and Jekaterina Kozlova and V{\"a}ino Sammelselg and Kaido Tammeveski",

year = "2013",

month = mar,

doi = "10.1007/s12678-012-0117-y",

language = "English",

volume = "4",

pages = "42--48",

journal = "Electrocatalysis",

issn = "1868-2529",

publisher = "Springer Publishing Company",

number = "1",

}

TY - JOUR

T1 - Electrochemical Reduction of Oxygen on Heat-Treated Pd Nanoparticle/Multi-Walled Carbon Nanotube Composites in Alkaline Solution

AU - Jukk, Kristel

AU - Alexeyeva, Nadezda

AU - Ritslaid, Peeter

AU - Kozlova, Jekaterina

AU - Sammelselg, Väino

AU - Tammeveski, Kaido

PY - 2013/3

Y1 - 2013/3

N2 - Palladium nanoparticle/multi-walled carbon nanotube (PdNP/MWCNT) composites were prepared using magnetron sputtering of Pd followed by heat treatment at different temperatures. The oxygen reduction experiments were performed to evaluate the PdNP/MWCNT catalyst activity for fuel cell cathodes in 0. 1 M KOH solution. Scanning electron microscopy was employed to examine the changes in surface morphology of the PdNP/MWCNT composites upon annealing. Electrochemical behaviour of the prepared PdNP/MWCNT catalysts was investigated using cyclic voltammetry and the rotating disk electrode (RDE) methods. The RDE results revealed that the PdNP/MWCNT composite annealed at 500 °C is the most active catalyst for the four-electron reduction of O2, and specific activity of this material is higher than that of bulk Pd.

AB - Palladium nanoparticle/multi-walled carbon nanotube (PdNP/MWCNT) composites were prepared using magnetron sputtering of Pd followed by heat treatment at different temperatures. The oxygen reduction experiments were performed to evaluate the PdNP/MWCNT catalyst activity for fuel cell cathodes in 0. 1 M KOH solution. Scanning electron microscopy was employed to examine the changes in surface morphology of the PdNP/MWCNT composites upon annealing. Electrochemical behaviour of the prepared PdNP/MWCNT catalysts was investigated using cyclic voltammetry and the rotating disk electrode (RDE) methods. The RDE results revealed that the PdNP/MWCNT composite annealed at 500 °C is the most active catalyst for the four-electron reduction of O2, and specific activity of this material is higher than that of bulk Pd.

KW - Carbon nanotubes

KW - Electrocatalysis

KW - Magnetron sputtering

KW - Oxygen reduction

KW - Pd nanoparticles

UR - https://www.scopus.com/pages/publications/84874513058

U2 - 10.1007/s12678-012-0117-y

DO - 10.1007/s12678-012-0117-y

M3 - Article

AN - SCOPUS:84874513058

SN - 1868-2529

VL - 4

SP - 42

EP - 48

JO - Electrocatalysis

JF - Electrocatalysis

IS - 1

ER -

Electrochemical Reduction of Oxygen on Heat-Treated Pd Nanoparticle/Multi-Walled Carbon Nanotube Composites in Alkaline Solution

Abstract

UN SDGs

Keywords

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