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Related Experiment Video

Updated: Jun 16, 2026

A Salt-Templated Synthesis Method for Porous Platinum-based Macrobeams and Macrotubes
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A Salt-Templated Synthesis Method for Porous Platinum-based Macrobeams and Macrotubes

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Nanoporous PtRu alloys for electrocatalysis.

Caixia Xu1, Lin Wang, Xiaolei Mu

  • 1School of Chemistry and Chemical Engineering, University of Jinan, Jinan, China. chm_xucx@ujn.edu.cn

Langmuir : the ACS Journal of Surfaces and Colloids
|February 2, 2010
PubMed
Summary

We developed a simple method to create nanoporous platinum-ruthenium (PtRu) alloys. The NP-Pt(70)Ru(30) alloy exhibits superior performance and CO tolerance for methanol oxidation reactions.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Nanoporous (NP) platinum-ruthenium (PtRu) alloys are crucial for catalysis.
  • Developing controlled synthesis methods for NP PtRu alloys with tunable compositions is essential.

Purpose of the Study:

  • To present a facile fabrication route for NP PtRu alloys with controlled bimetallic compositions.
  • To investigate the structural, electronic, and electrocatalytic properties of these NP PtRu alloys.

Main Methods:

  • Fabrication of NP PtRu alloys via selective aluminum etching from ternary PtRuAl source alloys.
  • Characterization using electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy.
  • Electrocatalytic evaluation for methanol oxidation reaction and CO stripping experiments.

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Last Updated: Jun 16, 2026

A Salt-Templated Synthesis Method for Porous Platinum-based Macrobeams and Macrotubes
13:08

A Salt-Templated Synthesis Method for Porous Platinum-based Macrobeams and Macrotubes

Published on: May 18, 2020

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
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Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Published on: April 27, 2018

A Continuous-flow Photocatalytic Reactor for the Precisely Controlled Deposition of Metallic Nanoparticles
11:49

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Main Results:

  • Successfully synthesized 3D bicontinuous NP-PtRu alloys with a single-phase FCC structure and tunable compositions.
  • Observed slight electronic modification of Pt by Ru alloying and uniform bimetallic ratios.
  • NP-Pt(70)Ru(30) demonstrated the highest specific activity and most negative onset potential for methanol oxidation.
  • NP-Pt(70)Ru(30) exhibited the weakest CO adsorption, indicating superior CO tolerance.

Conclusions:

  • The facile etching method enables precise control over NP PtRu alloy composition and structure.
  • NP PtRu alloys show promising electrocatalytic activity and CO tolerance for methanol oxidation.
  • NP-Pt(70)Ru(30) is identified as a highly effective catalyst for methanol oxidation reactions.