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Updated: Feb 24, 2026

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
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Mesoporous Pt nanospheres with designed pore surface as highly active electrocatalyst.

Bo Jiang1,2, Cuiling Li1, Victor Malgras1

  • 1World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA) , National Institute for Materials Science (NIMS) , 1-1 Namiki , Tsukuba , Ibaraki 305-0044 , Japan .

Chemical Science
|August 16, 2017
PubMed
Summary

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Researchers developed a new method to create controlled mesoporous platinum nanospheres (MPNs). These MPNs offer enhanced catalytic activity and stability for industrial applications like methanol and oxygen reactions.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Electrochemistry

Background:

  • Developing efficient catalysts is crucial for industrial processes.
  • Existing methods for synthesizing platinum nanostructures often lack control over size, shape, and porosity.
  • Mesoporous materials offer high surface area and accessibility for catalytic applications.

Purpose of the Study:

  • To report a novel, scalable synthesis strategy for shape- and size-controlled mesoporous platinum nanospheres (MPNs).
  • To investigate the structural and catalytic properties of the synthesized MPNs.
  • To evaluate the potential of MPNs as advanced catalysts for electrochemical reactions.

Main Methods:

  • A slow reduction reaction in the presence of a surfactant was employed for MPN synthesis.

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  • Characterization of the MPNs' morphology, structure, and surface properties.
  • Electrochemical testing for methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR) performance.

    • Main Results:

    • The synthesis exclusively yielded well-defined mesoporous architectures, differing from previous dendritic structures.
    • Selective adsorption of bromide ions created abundant, accessible catalytically active sites on the MPN surfaces.
    • The synthesized MPNs demonstrated superior electrochemical performance in MOR and ORR.

    Conclusions:

    • The novel synthetic route provides a scalable method for producing controlled mesoporous platinum nanospheres.
    • The MPNs exhibit excellent catalytic activity and high structural thermostability.
    • These MPNs show significant promise as efficient catalysts for industrial electrochemical applications.