Influence on Hydrogen Evolution Properties of Carbon Supported PtCu-LaOx Membrane Electrode by Aftertreatment

Bin Yang; Neng Huang

doi:10.4028/www.scientific.net/AMR.393-395.153

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 393-395Influence on Hydrogen Evolution Properties of...

Influence on Hydrogen Evolution Properties of Carbon Supported PtCu-LaO_x Membrane Electrode by Aftertreatment

Abstract:

In order to reduce production cost of making H2, one of the key points was to reduce Pt loading in Pt/C catalytic electrode. In our study, a new type of Pt/C membrane electrodes, PtCu-LaOx/C composite structure, was manufactured by Ion Beam Sputtering (IBS) technology. These membrane electrodes were treated by different annealing temperature in vacuum furnace, and by different time in different concentration H2SO4 solution. The hydrogen evolution properties of these electrodes were tested by tri-electrode system, and were calculated results of their exchange current density (i0), decomposition voltage (Ed) and active specific surface area (ESA). It was found that PtCu-LaOx composite membrane electrodes with Pt loading less than 0.045mg•cm-2 (the electrode area) undergone treatment, whose Ed, i0 and ESA was -0.264(V vs SCE), 4.111mA•cm2 and 75.8926m2•g-1 respectively in balanced condition.

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Periodical:

Advanced Materials Research (Volumes 393-395)

Pages:

153-156

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.393-395.153

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Online since:

November 2011

Authors:

Bin Yang, Neng Huang

Keywords:

Aftertreatment, Hydrogen Evolution, IBS, Influence, Membrane Electrodes, PtCuLaO_x

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