PtRu/C-Au/TiO2 electrocatalyst for a direct methanol fuel cell

Hyun Jong Kim; Do Young Kim; Haksoo Han; Yong Gun Shul

doi:10.1016/j.jpowsour.2005.10.101

PtRu/C-Au/TiO₂ electrocatalyst for a direct methanol fuel cell

Hyun Jong Kim, Do Young Kim, Haksoo Han, Yong Gun Shul

Department of Chemical and Biomolecular Engineering

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

94 Citations (Scopus)

Abstract

Au/TiO₂ is added to a PtRu/C electrode to improve the performance of a direct methanol fuel cell (DMFC). A high-throughput-screening test is performed for the fast screening of the loading of Au/TiO₂ on PtRu/C. The electrochemically-active surface area of PtRu/C-Au/TiO₂ and PtRu/C is determined from cyclic voltammetry. In CO-stripping and methanol oxidation voltammetry, PtRu/C-Au/TiO₂ exhibits better activity for CO and methanol oxidation than PtRu/C. The performance of the DMFC is also improved by addition of Au/TiO₂ to the PtRu/C electrode. The CO adsorbed on Pt may move to the surface of the Au/TiO₂ by the interaction between PtRu/C and Au/TiO₂. The improved performance of the PtRu/C-Au/TiO₂ catalyst is explained in terms of preferential oxidation of CO or CO-like poisoning species that are generated during the oxidation of methanol on PtRu/C.

Original language	English
Pages (from-to)	484-490
Number of pages	7
Journal	Journal of Power Sources
Volume	159
Issue number	1 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jpowsour.2005.10.101
Publication status	Published - 2006 Sept 13

Bibliographical note

Funding Information:
This work was supported by the Ministry of Science and Technology of Korea through the National Research Laboratory Program, as well as by a Korea Research Foundation Grant (2005-005-J01402).

All Science Journal Classification (ASJC) codes

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

UN SDGs

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

Access to Document

10.1016/j.jpowsour.2005.10.101

Cite this

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title = "PtRu/C-Au/TiO2 electrocatalyst for a direct methanol fuel cell",

abstract = "Au/TiO2 is added to a PtRu/C electrode to improve the performance of a direct methanol fuel cell (DMFC). A high-throughput-screening test is performed for the fast screening of the loading of Au/TiO2 on PtRu/C. The electrochemically-active surface area of PtRu/C-Au/TiO2 and PtRu/C is determined from cyclic voltammetry. In CO-stripping and methanol oxidation voltammetry, PtRu/C-Au/TiO2 exhibits better activity for CO and methanol oxidation than PtRu/C. The performance of the DMFC is also improved by addition of Au/TiO2 to the PtRu/C electrode. The CO adsorbed on Pt may move to the surface of the Au/TiO2 by the interaction between PtRu/C and Au/TiO2. The improved performance of the PtRu/C-Au/TiO2 catalyst is explained in terms of preferential oxidation of CO or CO-like poisoning species that are generated during the oxidation of methanol on PtRu/C.",

author = "Kim, {Hyun Jong} and Kim, {Do Young} and Haksoo Han and Shul, {Yong Gun}",

note = "Funding Information: This work was supported by the Ministry of Science and Technology of Korea through the National Research Laboratory Program, as well as by a Korea Research Foundation Grant (2005-005-J01402).",

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AU - Kim, Hyun Jong

AU - Kim, Do Young

AU - Han, Haksoo

AU - Shul, Yong Gun

N1 - Funding Information: This work was supported by the Ministry of Science and Technology of Korea through the National Research Laboratory Program, as well as by a Korea Research Foundation Grant (2005-005-J01402).

PY - 2006/9/13

Y1 - 2006/9/13

N2 - Au/TiO2 is added to a PtRu/C electrode to improve the performance of a direct methanol fuel cell (DMFC). A high-throughput-screening test is performed for the fast screening of the loading of Au/TiO2 on PtRu/C. The electrochemically-active surface area of PtRu/C-Au/TiO2 and PtRu/C is determined from cyclic voltammetry. In CO-stripping and methanol oxidation voltammetry, PtRu/C-Au/TiO2 exhibits better activity for CO and methanol oxidation than PtRu/C. The performance of the DMFC is also improved by addition of Au/TiO2 to the PtRu/C electrode. The CO adsorbed on Pt may move to the surface of the Au/TiO2 by the interaction between PtRu/C and Au/TiO2. The improved performance of the PtRu/C-Au/TiO2 catalyst is explained in terms of preferential oxidation of CO or CO-like poisoning species that are generated during the oxidation of methanol on PtRu/C.

AB - Au/TiO2 is added to a PtRu/C electrode to improve the performance of a direct methanol fuel cell (DMFC). A high-throughput-screening test is performed for the fast screening of the loading of Au/TiO2 on PtRu/C. The electrochemically-active surface area of PtRu/C-Au/TiO2 and PtRu/C is determined from cyclic voltammetry. In CO-stripping and methanol oxidation voltammetry, PtRu/C-Au/TiO2 exhibits better activity for CO and methanol oxidation than PtRu/C. The performance of the DMFC is also improved by addition of Au/TiO2 to the PtRu/C electrode. The CO adsorbed on Pt may move to the surface of the Au/TiO2 by the interaction between PtRu/C and Au/TiO2. The improved performance of the PtRu/C-Au/TiO2 catalyst is explained in terms of preferential oxidation of CO or CO-like poisoning species that are generated during the oxidation of methanol on PtRu/C.

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