Functionalization of electrochemically prepared titania nanotubes with Pt for application as catalyst for fuel cells

Fathy M.B. Hassan; Hiroshi Nanjo; Shanmugam Venkatachalam; Mitsuhiro Kanakubo; Takeo Ebina

doi:10.1016/j.jpowsour.2009.12.053

Functionalization of electrochemically prepared titania nanotubes with Pt for application as catalyst for fuel cells

Fathy M.B. Hassan, Hiroshi Nanjo, Shanmugam Venkatachalam, Mitsuhiro Kanakubo, Takeo Ebina

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

23 Citations (Scopus)

Abstract

Titania nanotubes (TiNTs) were prepared by electrochemical anodization and were used as a support for depositing Pt. After annealing the TiNTs changed to crystalline anatase phase and were doped with carbon. The TiNTs/Pt/C was tested as electrode for electrochemical catalysis of methanol oxidation. The composite catalyst activities were measured by cyclic voltammetry in 1 M CH₃OH + 1 M H₂SO₄. The results demonstrated that TiNTs/Pt/C can greatly enhance the catalytic activity of methanol oxidation. The CO stripping led to the increase in the current peak of methanol oxidation due to activating the catalyst surface by point defect formation. Moreover, the higher ratio of the forward anodic peak current to the reverse anodic peak current indicates more effective removal of the poisonous species.

Original language	English
Pages (from-to)	5889-5895
Number of pages	7
Journal	Journal of Power Sources
Volume	195
Issue number	18
DOIs	https://doi.org/10.1016/j.jpowsour.2009.12.053
Publication status	Published - Sept 15 2010
Externally published	Yes

Keywords

Anodization
Electrochemical catalyst
Fuel cells
Methanol oxidation
Titania nanotubes

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.jpowsour.2009.12.053

Cite this

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title = "Functionalization of electrochemically prepared titania nanotubes with Pt for application as catalyst for fuel cells",

abstract = "Titania nanotubes (TiNTs) were prepared by electrochemical anodization and were used as a support for depositing Pt. After annealing the TiNTs changed to crystalline anatase phase and were doped with carbon. The TiNTs/Pt/C was tested as electrode for electrochemical catalysis of methanol oxidation. The composite catalyst activities were measured by cyclic voltammetry in 1 M CH3OH + 1 M H2SO4. The results demonstrated that TiNTs/Pt/C can greatly enhance the catalytic activity of methanol oxidation. The CO stripping led to the increase in the current peak of methanol oxidation due to activating the catalyst surface by point defect formation. Moreover, the higher ratio of the forward anodic peak current to the reverse anodic peak current indicates more effective removal of the poisonous species.",

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author = "Hassan, {Fathy M.B.} and Hiroshi Nanjo and Shanmugam Venkatachalam and Mitsuhiro Kanakubo and Takeo Ebina",

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T1 - Functionalization of electrochemically prepared titania nanotubes with Pt for application as catalyst for fuel cells

AU - Hassan, Fathy M.B.

AU - Nanjo, Hiroshi

AU - Venkatachalam, Shanmugam

AU - Kanakubo, Mitsuhiro

AU - Ebina, Takeo

PY - 2010/9/15

Y1 - 2010/9/15

N2 - Titania nanotubes (TiNTs) were prepared by electrochemical anodization and were used as a support for depositing Pt. After annealing the TiNTs changed to crystalline anatase phase and were doped with carbon. The TiNTs/Pt/C was tested as electrode for electrochemical catalysis of methanol oxidation. The composite catalyst activities were measured by cyclic voltammetry in 1 M CH3OH + 1 M H2SO4. The results demonstrated that TiNTs/Pt/C can greatly enhance the catalytic activity of methanol oxidation. The CO stripping led to the increase in the current peak of methanol oxidation due to activating the catalyst surface by point defect formation. Moreover, the higher ratio of the forward anodic peak current to the reverse anodic peak current indicates more effective removal of the poisonous species.

AB - Titania nanotubes (TiNTs) were prepared by electrochemical anodization and were used as a support for depositing Pt. After annealing the TiNTs changed to crystalline anatase phase and were doped with carbon. The TiNTs/Pt/C was tested as electrode for electrochemical catalysis of methanol oxidation. The composite catalyst activities were measured by cyclic voltammetry in 1 M CH3OH + 1 M H2SO4. The results demonstrated that TiNTs/Pt/C can greatly enhance the catalytic activity of methanol oxidation. The CO stripping led to the increase in the current peak of methanol oxidation due to activating the catalyst surface by point defect formation. Moreover, the higher ratio of the forward anodic peak current to the reverse anodic peak current indicates more effective removal of the poisonous species.

KW - Anodization

KW - Electrochemical catalyst

KW - Fuel cells

KW - Methanol oxidation

KW - Titania nanotubes

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Functionalization of electrochemically prepared titania nanotubes with Pt for application as catalyst for fuel cells

Abstract

Keywords

ASJC Scopus subject areas

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