Structure and hydrogen evolution performance of nano-porous PtCu/C membrane catalysts

ZHAO Zhi-jing; YANG Bin; ZHAO Yu-meng

Volume 44 Issue 4

Apr. 2016

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Article Navigation > Journal of Fuel Chemistry and Technology > 2016 > 44(4): 483-488

ZHAO Zhi-jing, YANG Bin, ZHAO Yu-meng. Structure and hydrogen evolution performance of nano-porous PtCu/C membrane catalysts[J]. Journal of Fuel Chemistry and Technology, 2016, 44(4): 483-488.

Citation:

ZHAO Zhi-jing, YANG Bin, ZHAO Yu-meng. Structure and hydrogen evolution performance of nano-porous PtCu/C membrane catalysts[J]. Journal of Fuel Chemistry and Technology, 2016, 44(4): 483-488.

ZHAO Zhi-jing, YANG Bin, ZHAO Yu-meng. Structure and hydrogen evolution performance of nano-porous PtCu/C membrane catalysts[J]. Journal of Fuel Chemistry and Technology, 2016, 44(4): 483-488.

Citation:

ZHAO Zhi-jing, YANG Bin, ZHAO Yu-meng. Structure and hydrogen evolution performance of nano-porous PtCu/C membrane catalysts[J]. Journal of Fuel Chemistry and Technology, 2016, 44(4): 483-488.

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Structure and hydrogen evolution performance of nano-porous PtCu/C membrane catalysts

School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China

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Corresponding author: E-mail: yangbin@kmust.edu.cn.
Received Date: 2015-11-17
Rev Recd Date: 2016-01-31

Available Online: 2021-01-23

Publish Date: 2016-04-30

Abstract

Abstract

PtCu/C membrane catalysts were prepared by ion beam sputtering (IBS) with moving bimetallic Pt and Cu targets; they were post-processed by vacuum annealing in combination with acid etching. High resolution transmission electron microscopy (HRTEM & STEM) and atomic force microscope (AFM) were employed to characterize the surface morphology of post-processed samples; the alloying degree of Pt and Cu was determined by the X-ray diffraction (XRD). Through cyclic voltammetry (CV) and linear sweep voltammetry (LSV), the electrochemical hydrogen evolution properties of the PtCu/C membrane catalysts were investigated. The results indicated that the PtCu/C membrane catalyst annealed at 400 ℃ and etched by HNO₃ exhibits honeycomb nano-porous structure; the loading of Pt is reduced by about 8.77%, whereas the catalytic activity is enhanced by about 20.62%, in comparison compared with the original PtCu/C membrane catalyst.
- ion beam sputtering,
- PtCu/C,
- membrane,
- post-processing,
- catalytic activity

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References(23)

References

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