Preparation and characterization of long-lived anode catalyst for direct methanol fuel cells

Yuzuru Shimazaki; Yoshio Kobayashi; Masatoshi Sugimasa; Shinji Yamada; Takeyuki Itabashi; Takao Miwa; Mikio Konno

doi:10.1016/j.jcis.2006.03.030

Preparation and characterization of long-lived anode catalyst for direct methanol fuel cells

Yuzuru Shimazaki, Yoshio Kobayashi, Masatoshi Sugimasa, Shinji Yamada, Takeyuki Itabashi, Takao Miwa, Mikio Konno

ENG - Chemical Engineering

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

19 Citations (Scopus)

Abstract

Entry of direct methanol fuel cells into the market requires anode catalyst with stable activity. This paper presents a novel method for stabilizing the activity by immobilizing silica on the catalytic PtRu nanoparticles. Characterization was performed by STEM-EDX, XRD, and ICP. The silica-immobilized PtRu nanoparticles showed high and stable activity toward methanol oxidation. The activity was maintained for 1000 h in sulfuric acidic solution, while the activity of the catalyst with "bare" PtRu nanoparticles decayed after 100 h, showing high durability of the silica-immobilized PtRu nanoparticles catalyst in quasi-anodic acidic environment.

Original language	English
Pages (from-to)	253-258
Number of pages	6
Journal	Journal of Colloid And Interface Science
Volume	300
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2006.03.030
Publication status	Published - 2006 Aug 1

Keywords

Anode catalyst
Direct methanol fuel cell
ICP
PtRu nanoparticle
STEM-EDX
Silica
XRD

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

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Preparation and characterization of long-lived anode catalyst for direct methanol fuel cells. / Shimazaki, Yuzuru; Kobayashi, Yoshio; Sugimasa, Masatoshi; Yamada, Shinji; Itabashi, Takeyuki; Miwa, Takao; Konno, Mikio.

In: Journal of Colloid And Interface Science, Vol. 300, No. 1, 01.08.2006, p. 253-258.

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

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abstract = "Entry of direct methanol fuel cells into the market requires anode catalyst with stable activity. This paper presents a novel method for stabilizing the activity by immobilizing silica on the catalytic PtRu nanoparticles. Characterization was performed by STEM-EDX, XRD, and ICP. The silica-immobilized PtRu nanoparticles showed high and stable activity toward methanol oxidation. The activity was maintained for 1000 h in sulfuric acidic solution, while the activity of the catalyst with {"}bare{"} PtRu nanoparticles decayed after 100 h, showing high durability of the silica-immobilized PtRu nanoparticles catalyst in quasi-anodic acidic environment.",

keywords = "Anode catalyst, Direct methanol fuel cell, ICP, PtRu nanoparticle, STEM-EDX, Silica, XRD",

author = "Yuzuru Shimazaki and Yoshio Kobayashi and Masatoshi Sugimasa and Shinji Yamada and Takeyuki Itabashi and Takao Miwa and Mikio Konno",

note = "Funding Information: This work was supported by the Grant-in-Aid for R&D for Practical Application Utilizing the Matching Fund Method, from New Energy and Industrial Technology Development Organization.",

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AU - Shimazaki, Yuzuru

AU - Kobayashi, Yoshio

AU - Sugimasa, Masatoshi

AU - Yamada, Shinji

AU - Itabashi, Takeyuki

AU - Miwa, Takao

AU - Konno, Mikio

N1 - Funding Information: This work was supported by the Grant-in-Aid for R&D for Practical Application Utilizing the Matching Fund Method, from New Energy and Industrial Technology Development Organization.

PY - 2006/8/1

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N2 - Entry of direct methanol fuel cells into the market requires anode catalyst with stable activity. This paper presents a novel method for stabilizing the activity by immobilizing silica on the catalytic PtRu nanoparticles. Characterization was performed by STEM-EDX, XRD, and ICP. The silica-immobilized PtRu nanoparticles showed high and stable activity toward methanol oxidation. The activity was maintained for 1000 h in sulfuric acidic solution, while the activity of the catalyst with "bare" PtRu nanoparticles decayed after 100 h, showing high durability of the silica-immobilized PtRu nanoparticles catalyst in quasi-anodic acidic environment.

AB - Entry of direct methanol fuel cells into the market requires anode catalyst with stable activity. This paper presents a novel method for stabilizing the activity by immobilizing silica on the catalytic PtRu nanoparticles. Characterization was performed by STEM-EDX, XRD, and ICP. The silica-immobilized PtRu nanoparticles showed high and stable activity toward methanol oxidation. The activity was maintained for 1000 h in sulfuric acidic solution, while the activity of the catalyst with "bare" PtRu nanoparticles decayed after 100 h, showing high durability of the silica-immobilized PtRu nanoparticles catalyst in quasi-anodic acidic environment.

KW - Anode catalyst

KW - Direct methanol fuel cell

KW - ICP

KW - PtRu nanoparticle

KW - STEM-EDX

KW - Silica

KW - XRD

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JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

SN - 0021-9797

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Preparation and characterization of long-lived anode catalyst for direct methanol fuel cells

Abstract

Keywords

ASJC Scopus subject areas

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