Facile preparation of ultra-low Pt loading graphene-immobilized electrode for methanol oxidation reaction

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Abstract

Pulse current electrodeposition (PCE) technique was used to prepare graphene-supported platinum nanoparticles (GN-PtNPs) electrodes for the methanol electro-oxidation reaction in acidic media. The influences of the PCE parameters (applied current density, concentration of the Pt precursor, and duty cycle) upon the as-prepared GN-PtNPs electrodes for the methanol oxidation reaction (MOR) in terms of catalytic activity and tolerance against poisoning were studied using the Taguchi design of experiment (DOE). The analysis of variance (ANOVA) and signal-to-noise (S/N) ratio analysis provided prediction of optimal electrodeposition conditions to yield GN-PtNPs electrode which give the best MOR performance. The values of confirmatory experiment were demonstrated close to the values predicted using the Taguchi method. Transmission electron microscopy images showed that the Pt crystallites in flower-like structure were deposited evenly on the surface of graphene sheet. The Pt crystallites were predominantly in a zero-valent, metallic Pt state based on the X-ray photoelectron spectroscopy analysis.

Original languageEnglish
Pages (from-to)16005-16014
Number of pages10
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number33
DOIs
Publication statusPublished - 16 Aug 2018

Fingerprint

Graphene
graphene
Methanol
methyl alcohol
Electrodeposition
electrodeposition
Platinum
Oxidation
preparation
oxidation
Electrodes
platinum
electrodes
Nanoparticles
Crystallites
nanoparticles
crystallites
Catalyst poisoning
Taguchi methods
analysis of variance

Keywords

  • Graphene
  • Methanol oxidation reaction
  • Pulse current electrodeposition
  • Taguchi method

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

@article{b25ee5dfd1d24e12b46f27a1e11f55da,
title = "Facile preparation of ultra-low Pt loading graphene-immobilized electrode for methanol oxidation reaction",
abstract = "Pulse current electrodeposition (PCE) technique was used to prepare graphene-supported platinum nanoparticles (GN-PtNPs) electrodes for the methanol electro-oxidation reaction in acidic media. The influences of the PCE parameters (applied current density, concentration of the Pt precursor, and duty cycle) upon the as-prepared GN-PtNPs electrodes for the methanol oxidation reaction (MOR) in terms of catalytic activity and tolerance against poisoning were studied using the Taguchi design of experiment (DOE). The analysis of variance (ANOVA) and signal-to-noise (S/N) ratio analysis provided prediction of optimal electrodeposition conditions to yield GN-PtNPs electrode which give the best MOR performance. The values of confirmatory experiment were demonstrated close to the values predicted using the Taguchi method. Transmission electron microscopy images showed that the Pt crystallites in flower-like structure were deposited evenly on the surface of graphene sheet. The Pt crystallites were predominantly in a zero-valent, metallic Pt state based on the X-ray photoelectron spectroscopy analysis.",
keywords = "Graphene, Methanol oxidation reaction, Pulse current electrodeposition, Taguchi method",
author = "Toh, {S. Y.} and Loh, {Kee Shyuan} and Kamarudin, {Siti Kartom} and {Wan Daud}, {Wan Ramli}",
year = "2018",
month = "8",
day = "16",
doi = "10.1016/j.ijhydene.2018.07.016",
language = "English",
volume = "43",
pages = "16005--16014",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
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T1 - Facile preparation of ultra-low Pt loading graphene-immobilized electrode for methanol oxidation reaction

AU - Toh, S. Y.

AU - Loh, Kee Shyuan

AU - Kamarudin, Siti Kartom

AU - Wan Daud, Wan Ramli

PY - 2018/8/16

Y1 - 2018/8/16

N2 - Pulse current electrodeposition (PCE) technique was used to prepare graphene-supported platinum nanoparticles (GN-PtNPs) electrodes for the methanol electro-oxidation reaction in acidic media. The influences of the PCE parameters (applied current density, concentration of the Pt precursor, and duty cycle) upon the as-prepared GN-PtNPs electrodes for the methanol oxidation reaction (MOR) in terms of catalytic activity and tolerance against poisoning were studied using the Taguchi design of experiment (DOE). The analysis of variance (ANOVA) and signal-to-noise (S/N) ratio analysis provided prediction of optimal electrodeposition conditions to yield GN-PtNPs electrode which give the best MOR performance. The values of confirmatory experiment were demonstrated close to the values predicted using the Taguchi method. Transmission electron microscopy images showed that the Pt crystallites in flower-like structure were deposited evenly on the surface of graphene sheet. The Pt crystallites were predominantly in a zero-valent, metallic Pt state based on the X-ray photoelectron spectroscopy analysis.

AB - Pulse current electrodeposition (PCE) technique was used to prepare graphene-supported platinum nanoparticles (GN-PtNPs) electrodes for the methanol electro-oxidation reaction in acidic media. The influences of the PCE parameters (applied current density, concentration of the Pt precursor, and duty cycle) upon the as-prepared GN-PtNPs electrodes for the methanol oxidation reaction (MOR) in terms of catalytic activity and tolerance against poisoning were studied using the Taguchi design of experiment (DOE). The analysis of variance (ANOVA) and signal-to-noise (S/N) ratio analysis provided prediction of optimal electrodeposition conditions to yield GN-PtNPs electrode which give the best MOR performance. The values of confirmatory experiment were demonstrated close to the values predicted using the Taguchi method. Transmission electron microscopy images showed that the Pt crystallites in flower-like structure were deposited evenly on the surface of graphene sheet. The Pt crystallites were predominantly in a zero-valent, metallic Pt state based on the X-ray photoelectron spectroscopy analysis.

KW - Graphene

KW - Methanol oxidation reaction

KW - Pulse current electrodeposition

KW - Taguchi method

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