Electrosynthesis of mesoporous Pt-Au alloy electrode for direct methanol fuel cell

Eun Kyung Park; Jin Kyu Lee; Young Soo Kim; Gil Pyo Kim; Sung Hyeon Baeck

doi:10.1016/j.jpcs.2007.09.009

Electrosynthesis of mesoporous Pt-Au alloy electrode for direct methanol fuel cell

Eun Kyung Park, Jin Kyu Lee, Young Soo Kim, Gil Pyo Kim, Sung Hyeon Baeck

Inha University

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

18 Scopus citations

Abstract

Mesoporous Pt-Au alloy films were successfully fabricated on ITO-coated glass from an aqueous mixture of H₂PtCl₆ and HAuCl₄ by electrodeposition method using proper amount of poly(ethylene glycol)-poly(propylene glycol)-poly(ethylene glycol) (P123) as a templating agent. For comparison, nonporous Pt and mesoporous Pt were electrodeposited. Crystallinity of synthesized film was investigated by X-ray diffraction (XRD) analysis, and film composition was determined by energy dispersive X-ray spectroscopy (EDS). Scanning electron microscopy (SEM) was utilized to examine surface morphology and it was observed that the addition of P123 affected the particle growth, resulting in a significant change of surface morphology. The mesoporous structure was confirmed by transmission electron microscopy (TEM), and it was concluded that the formation of mesoporous structure strongly depended on electrodeposition conditions, such as deposition voltage, deposition time, temperature and P123 concentration. Compared with pure Pt electrodes, mesoporous Pt-Au film showed higher catalytic activities and stability for methanol oxidation.

Original language	English
Pages (from-to)	1284-1287
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	69
Issue number	5-6
DOIs	https://doi.org/10.1016/j.jpcs.2007.09.009
State	Published - May 2008

Bibliographical note

Funding Information:
This work was supported by the Regional Innovation Center for Environment Technology of Thermal Plasma (ETTP) at Inha University designated by MOCIE (2007).

Keywords

A. Alloys
A. Nanostructures
D. Electrochemical properties

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10.1016/j.jpcs.2007.09.009

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@article{f66a7a26076247ba889189569221ee8e,

title = "Electrosynthesis of mesoporous Pt-Au alloy electrode for direct methanol fuel cell",

abstract = "Mesoporous Pt-Au alloy films were successfully fabricated on ITO-coated glass from an aqueous mixture of H2PtCl6 and HAuCl4 by electrodeposition method using proper amount of poly(ethylene glycol)-poly(propylene glycol)-poly(ethylene glycol) (P123) as a templating agent. For comparison, nonporous Pt and mesoporous Pt were electrodeposited. Crystallinity of synthesized film was investigated by X-ray diffraction (XRD) analysis, and film composition was determined by energy dispersive X-ray spectroscopy (EDS). Scanning electron microscopy (SEM) was utilized to examine surface morphology and it was observed that the addition of P123 affected the particle growth, resulting in a significant change of surface morphology. The mesoporous structure was confirmed by transmission electron microscopy (TEM), and it was concluded that the formation of mesoporous structure strongly depended on electrodeposition conditions, such as deposition voltage, deposition time, temperature and P123 concentration. Compared with pure Pt electrodes, mesoporous Pt-Au film showed higher catalytic activities and stability for methanol oxidation.",

keywords = "A. Alloys, A. Nanostructures, D. Electrochemical properties",

author = "Park, {Eun Kyung} and Lee, {Jin Kyu} and Kim, {Young Soo} and Kim, {Gil Pyo} and Baeck, {Sung Hyeon}",

note = "Funding Information: This work was supported by the Regional Innovation Center for Environment Technology of Thermal Plasma (ETTP) at Inha University designated by MOCIE (2007).",

year = "2008",

month = may,

doi = "10.1016/j.jpcs.2007.09.009",

language = "English",

volume = "69",

pages = "1284--1287",

journal = "Journal of Physics and Chemistry of Solids",

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T1 - Electrosynthesis of mesoporous Pt-Au alloy electrode for direct methanol fuel cell

AU - Park, Eun Kyung

AU - Lee, Jin Kyu

AU - Kim, Young Soo

AU - Kim, Gil Pyo

AU - Baeck, Sung Hyeon

N1 - Funding Information: This work was supported by the Regional Innovation Center for Environment Technology of Thermal Plasma (ETTP) at Inha University designated by MOCIE (2007).

PY - 2008/5

Y1 - 2008/5

N2 - Mesoporous Pt-Au alloy films were successfully fabricated on ITO-coated glass from an aqueous mixture of H2PtCl6 and HAuCl4 by electrodeposition method using proper amount of poly(ethylene glycol)-poly(propylene glycol)-poly(ethylene glycol) (P123) as a templating agent. For comparison, nonporous Pt and mesoporous Pt were electrodeposited. Crystallinity of synthesized film was investigated by X-ray diffraction (XRD) analysis, and film composition was determined by energy dispersive X-ray spectroscopy (EDS). Scanning electron microscopy (SEM) was utilized to examine surface morphology and it was observed that the addition of P123 affected the particle growth, resulting in a significant change of surface morphology. The mesoporous structure was confirmed by transmission electron microscopy (TEM), and it was concluded that the formation of mesoporous structure strongly depended on electrodeposition conditions, such as deposition voltage, deposition time, temperature and P123 concentration. Compared with pure Pt electrodes, mesoporous Pt-Au film showed higher catalytic activities and stability for methanol oxidation.

AB - Mesoporous Pt-Au alloy films were successfully fabricated on ITO-coated glass from an aqueous mixture of H2PtCl6 and HAuCl4 by electrodeposition method using proper amount of poly(ethylene glycol)-poly(propylene glycol)-poly(ethylene glycol) (P123) as a templating agent. For comparison, nonporous Pt and mesoporous Pt were electrodeposited. Crystallinity of synthesized film was investigated by X-ray diffraction (XRD) analysis, and film composition was determined by energy dispersive X-ray spectroscopy (EDS). Scanning electron microscopy (SEM) was utilized to examine surface morphology and it was observed that the addition of P123 affected the particle growth, resulting in a significant change of surface morphology. The mesoporous structure was confirmed by transmission electron microscopy (TEM), and it was concluded that the formation of mesoporous structure strongly depended on electrodeposition conditions, such as deposition voltage, deposition time, temperature and P123 concentration. Compared with pure Pt electrodes, mesoporous Pt-Au film showed higher catalytic activities and stability for methanol oxidation.

KW - A. Alloys

KW - A. Nanostructures

KW - D. Electrochemical properties

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U2 - 10.1016/j.jpcs.2007.09.009

DO - 10.1016/j.jpcs.2007.09.009

M3 - Article

AN - SCOPUS:43449129729

SN - 0022-3697

VL - 69

SP - 1284

EP - 1287

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 5-6

ER -

Electrosynthesis of mesoporous Pt-Au alloy electrode for direct methanol fuel cell

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