Polyoxometallate-stabilized platinum catalysts on multi-walled carbon nanotubes for fuel cell applications

Z. P. Guo; D. M. Han; D. Wexler; R. Zeng; H. K. Liu

doi:10.1016/j.electacta.2008.04.050

Polyoxometallate-stabilized platinum catalysts on multi-walled carbon nanotubes for fuel cell applications

Z. P. Guo, D. M. Han, D. Wexler, R. Zeng, H. K. Liu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

39 Citations (Scopus)

Abstract

A novel catalyst, Pt-PMo₁₂-CNT, with well-dispersed Pt nanoparticles and monolayer PMo₁₂ on multiwalled carbon nanotubes (CNTs) is reported. A polyoxometallate (PMo₁₂) was chemically adsorbed on the surface of Pt nanoparticles and on outer walls of CNTs. These effectively prevented the agglomeration of Pt nanoparticles and CNTs due to the electrostatic repulsive interactions between negatively charged PMo₁₂ monolayers. The as-prepared Pt-PMo₁₂-CNT materials show higher electrocatalytic activity, higher cycle stability, and better tolerance to poisoning species in methanol oxidation than do Pt-CNT catalysts prepared by the same method. The reasons for the improved catalytic performance of the Pt-PMo₁₂-CNT catalysts are discussed. © 2008 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	6410-6416
Journal	Electrochimica Acta
Volume	53
Issue number	22
DOIs	https://doi.org/10.1016/j.electacta.2008.04.050
Publication status	Published - 20 Sept 2008
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

Funding

The authors would like to thank Mr. J. Park for his help with the TEM measurements. Financial support provided by the University of Wollongong (URC) is gratefully acknowledged. The authors also thank Dr. T. Silver for critical reading of the manuscript.

Research Keywords

Fuel cells
Methanol oxidation
Polyoxometallate
Well-dispersed ultrafine nanocrystals

UN SDGs

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

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abstract = "A novel catalyst, Pt-PMo12-CNT, with well-dispersed Pt nanoparticles and monolayer PMo12 on multiwalled carbon nanotubes (CNTs) is reported. A polyoxometallate (PMo12) was chemically adsorbed on the surface of Pt nanoparticles and on outer walls of CNTs. These effectively prevented the agglomeration of Pt nanoparticles and CNTs due to the electrostatic repulsive interactions between negatively charged PMo12 monolayers. The as-prepared Pt-PMo12-CNT materials show higher electrocatalytic activity, higher cycle stability, and better tolerance to poisoning species in methanol oxidation than do Pt-CNT catalysts prepared by the same method. The reasons for the improved catalytic performance of the Pt-PMo12-CNT catalysts are discussed. {\textcopyright} 2008 Elsevier Ltd. All rights reserved.",

keywords = "Fuel cells, Methanol oxidation, Polyoxometallate, Well-dispersed ultrafine nanocrystals",

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AU - Guo, Z. P.

AU - Han, D. M.

AU - Wexler, D.

AU - Zeng, R.

AU - Liu, H. K.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

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N2 - A novel catalyst, Pt-PMo12-CNT, with well-dispersed Pt nanoparticles and monolayer PMo12 on multiwalled carbon nanotubes (CNTs) is reported. A polyoxometallate (PMo12) was chemically adsorbed on the surface of Pt nanoparticles and on outer walls of CNTs. These effectively prevented the agglomeration of Pt nanoparticles and CNTs due to the electrostatic repulsive interactions between negatively charged PMo12 monolayers. The as-prepared Pt-PMo12-CNT materials show higher electrocatalytic activity, higher cycle stability, and better tolerance to poisoning species in methanol oxidation than do Pt-CNT catalysts prepared by the same method. The reasons for the improved catalytic performance of the Pt-PMo12-CNT catalysts are discussed. © 2008 Elsevier Ltd. All rights reserved.

AB - A novel catalyst, Pt-PMo12-CNT, with well-dispersed Pt nanoparticles and monolayer PMo12 on multiwalled carbon nanotubes (CNTs) is reported. A polyoxometallate (PMo12) was chemically adsorbed on the surface of Pt nanoparticles and on outer walls of CNTs. These effectively prevented the agglomeration of Pt nanoparticles and CNTs due to the electrostatic repulsive interactions between negatively charged PMo12 monolayers. The as-prepared Pt-PMo12-CNT materials show higher electrocatalytic activity, higher cycle stability, and better tolerance to poisoning species in methanol oxidation than do Pt-CNT catalysts prepared by the same method. The reasons for the improved catalytic performance of the Pt-PMo12-CNT catalysts are discussed. © 2008 Elsevier Ltd. All rights reserved.

KW - Fuel cells

KW - Methanol oxidation

KW - Polyoxometallate

KW - Well-dispersed ultrafine nanocrystals

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DO - 10.1016/j.electacta.2008.04.050

M3 - RGC 21 - Publication in refereed journal

SN - 0013-4686

VL - 53

SP - 6410

EP - 6416

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 22

ER -

Polyoxometallate-stabilized platinum catalysts on multi-walled carbon nanotubes for fuel cell applications

Abstract

Bibliographical note

Funding

Research Keywords

UN SDGs

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