Related Experiment Video
Updated: Feb 3, 2026

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
Published on: April 27, 2018
Controlled Synthesis of PtNi Hexapods for Enhanced Oxygen Reduction Reaction
Xing Song1, Shuiping Luo1, Xiaokun Fan1
1Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, China.
Abstract:
Well-defined PtNi nanocrystals represent one of the most efficient electrocatalysts to boost the oxygen reduction reaction (ORR), especially in the shape of octahedrons, nanoframes, and nanowires. However, the synthesis of complex PtNi nanostructure is still a great challenge. Herein, we report a new class of PtNi hexapods with high activity and stability toward ORR. The hexapods are prepared by selective capping and simultaneous corrosion. By controlling the oxidative etching, PtNi polyhedrons and nanoparticles are obtained, respectively. The intriguing hexapods are composed of six nanopods with an average length of 12.5 nm. Due to their sharp tips and three-dimensional (3D) accessible surfaces, the PtNi hexapods show a high mass activity of 0.85 A mg at 0.9 V vs. RHE, which are 5.4-fold higher than commercial Pt/C, also outperforming PtNi polyhedrons and PtNi nanoparticles. In addition, the mass activity of PtNi hexapods maintains 92.3% even after 10,000 potential cycles.
More Related Videos
Related Concept Videos
Synthesis and Decomposition Reactions
Oxidation-Reduction Reactions
Phase I Reactions: Reductive Reactions
Reactions at the Benzylic Position: Oxidation and Reduction
Reaction Stoichiometry
Alkenes via Reductive Coupling of Aldehydes or Ketones: McMurry Reaction

