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Vertically Aligned Platinum Copper Nanotubes as PEM Fuel Cell Cathode: Elaboration and Fuel Cell Test.

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Title: Vertically Aligned Platinum Copper Nanotubes as PEM Fuel Cell Cathode: Elaboration and Fuel Cell Test.
Authors: Marconot, O.1, Pauc, N.1, Buttard, D.1,2, Morin, A.3 arnaud.morin@cea.fr
Source: Fuel Cells. Dec2018, Vol. 18 Issue 6, p723-730. 8p.
Subjects: Protein-energy malnutrition, Fuel cells, Direct energy conversion, Porous materials, Electrochemistry
Abstract: This paper describes the elaboration via an electrochemistry route of a PEM carbon‐free cathode made of a periodic array of vertically aligned platinum copper nanotubes. Nanotubes synthesis is assisted with a porous alumina mold made on a silicon substrate to perform growth of copper nanowires. After optimization of an original confined galvanic displacement with H2PtCl6 salt, PtCu nanotubes are embedded into porous alumina template and directly integrated onto a Nafion® membrane. Therefore, our process does not need any step of purification or catalyst dispersion. The performances in fuel cell of these new electrodes are compared to conventional structures made of Tanaka Pt/C with the same electrocatalytic surface area. Significant improvement in the specific activity at 0.9 V and reduction in mass transport limitations are observed compared with standard Tanaka Pt/C catalyst in real operating conditions. [ABSTRACT FROM AUTHOR]
Copyright of Fuel Cells is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Vertically Aligned Platinum Copper Nanotubes as PEM Fuel Cell Cathode: Elaboration and Fuel Cell Test.
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  Data: <searchLink fieldCode="AR" term="%22Marconot%2C+O%2E%22">Marconot, O.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Pauc%2C+N%2E%22">Pauc, N.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Buttard%2C+D%2E%22">Buttard, D.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Morin%2C+A%2E%22">Morin, A.</searchLink><relatesTo>3</relatesTo><i> arnaud.morin@cea.fr</i>
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  Data: <searchLink fieldCode="JN" term="%22Fuel+Cells%22">Fuel Cells</searchLink>. Dec2018, Vol. 18 Issue 6, p723-730. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Protein-energy+malnutrition%22">Protein-energy malnutrition</searchLink><br /><searchLink fieldCode="DE" term="%22Fuel+cells%22">Fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Direct+energy+conversion%22">Direct energy conversion</searchLink><br /><searchLink fieldCode="DE" term="%22Porous+materials%22">Porous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochemistry%22">Electrochemistry</searchLink>
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  Data: This paper describes the elaboration via an electrochemistry route of a PEM carbon‐free cathode made of a periodic array of vertically aligned platinum copper nanotubes. Nanotubes synthesis is assisted with a porous alumina mold made on a silicon substrate to perform growth of copper nanowires. After optimization of an original confined galvanic displacement with H2PtCl6 salt, PtCu nanotubes are embedded into porous alumina template and directly integrated onto a Nafion® membrane. Therefore, our process does not need any step of purification or catalyst dispersion. The performances in fuel cell of these new electrodes are compared to conventional structures made of Tanaka Pt/C with the same electrocatalytic surface area. Significant improvement in the specific activity at 0.9 V and reduction in mass transport limitations are observed compared with standard Tanaka Pt/C catalyst in real operating conditions. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Fuel Cells is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Direct energy conversion
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              Text: Dec2018
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