Effect of carbon nanodots supported palladium-based electrocatalysts towards oxygen reduction reaction in an alkaline medium

T. A. Mashola; T. Matthews; L. T. Dlamini; N. W. Maxakato

doi:10.20964/2020.10.44

Effect of carbon nanodots supported palladium-based electrocatalysts towards oxygen reduction reaction in an alkaline medium

T. A. Mashola, T. Matthews, L. T. Dlamini, N. W. Maxakato

Chemical Sciences

University of Johannesburg

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

Abstract

Carbon nanodots (CNDs) have been synthesised using a simple and cheap pyrolysis method. The Pd/CNDs electrocatalyst was synthesised by the in-situ reduction method. The calculated particle sizes were found to be 6.0 nm and 0.974 nm for CNDs and Pd nanoparticles, respectively. The reaction kinetics of the Pd/CNDs was found to have an onset potential of-0.111 V, which is 0.052 V lower than that of Pd/C. CNDs are good electrocatalysts support, as supported by durability and stability studies. The electrocatalyst showed improved durability and stability when CNDs were used as the support material for the Pd nanoparticles.

Original language	English
Pages (from-to)	10509-10523
Number of pages	15
Journal	International Journal of Electrochemical Science
Volume	15
DOIs	https://doi.org/10.20964/2020.10.44
Publication status	Published - 2020

Keywords

Carbon nanodots
Electro-catalysis
Electrode
Fuel cells
Oxygen reduction reaction

ASJC Scopus subject areas

Electrochemistry

UN SDGs

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

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10.20964/2020.10.44

Cite this

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title = "Effect of carbon nanodots supported palladium-based electrocatalysts towards oxygen reduction reaction in an alkaline medium",

abstract = "Carbon nanodots (CNDs) have been synthesised using a simple and cheap pyrolysis method. The Pd/CNDs electrocatalyst was synthesised by the in-situ reduction method. The calculated particle sizes were found to be 6.0 nm and 0.974 nm for CNDs and Pd nanoparticles, respectively. The reaction kinetics of the Pd/CNDs was found to have an onset potential of-0.111 V, which is 0.052 V lower than that of Pd/C. CNDs are good electrocatalysts support, as supported by durability and stability studies. The electrocatalyst showed improved durability and stability when CNDs were used as the support material for the Pd nanoparticles.",

keywords = "Carbon nanodots, Electro-catalysis, Electrode, Fuel cells, Oxygen reduction reaction",

author = "Mashola, {T. A.} and T. Matthews and Dlamini, {L. T.} and Maxakato, {N. W.}",

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doi = "10.20964/2020.10.44",

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T1 - Effect of carbon nanodots supported palladium-based electrocatalysts towards oxygen reduction reaction in an alkaline medium

AU - Mashola, T. A.

AU - Matthews, T.

AU - Dlamini, L. T.

AU - Maxakato, N. W.

PY - 2020

Y1 - 2020

N2 - Carbon nanodots (CNDs) have been synthesised using a simple and cheap pyrolysis method. The Pd/CNDs electrocatalyst was synthesised by the in-situ reduction method. The calculated particle sizes were found to be 6.0 nm and 0.974 nm for CNDs and Pd nanoparticles, respectively. The reaction kinetics of the Pd/CNDs was found to have an onset potential of-0.111 V, which is 0.052 V lower than that of Pd/C. CNDs are good electrocatalysts support, as supported by durability and stability studies. The electrocatalyst showed improved durability and stability when CNDs were used as the support material for the Pd nanoparticles.

AB - Carbon nanodots (CNDs) have been synthesised using a simple and cheap pyrolysis method. The Pd/CNDs electrocatalyst was synthesised by the in-situ reduction method. The calculated particle sizes were found to be 6.0 nm and 0.974 nm for CNDs and Pd nanoparticles, respectively. The reaction kinetics of the Pd/CNDs was found to have an onset potential of-0.111 V, which is 0.052 V lower than that of Pd/C. CNDs are good electrocatalysts support, as supported by durability and stability studies. The electrocatalyst showed improved durability and stability when CNDs were used as the support material for the Pd nanoparticles.

KW - Carbon nanodots

KW - Electro-catalysis

KW - Electrode

KW - Fuel cells

KW - Oxygen reduction reaction

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JO - International Journal of Electrochemical Science

JF - International Journal of Electrochemical Science

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Effect of carbon nanodots supported palladium-based electrocatalysts towards oxygen reduction reaction in an alkaline medium

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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