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Related Experiment Video

Updated: Feb 28, 2026

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

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

Published on: April 27, 2018

Iridium-Based Multimetallic Nanoframe@Nanoframe Structure: An Efficient and Robust Electrocatalyst toward Oxygen

Jongsik Park^1,2, Young Jin Sa, Hionsuck Baik³

¹Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS) , Seoul 02841, Korea.

|June 10, 2017

Summary

Researchers developed a novel double-layered nanoframe catalyst for improved oxygen evolution reaction (OER) electrocatalysis. This advanced nanoframe structure shows superior activity and durability compared to traditional catalysts.

Keywords:

electrocatalysis iridium-based nanocrystal kinetic control nanoframe oxygen evolution reaction ternary alloy

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Published on: December 6, 2021

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Last Updated: Feb 28, 2026

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Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

Area of Science:

Materials Science
Electrochemistry
Nanotechnology

Background:

Nanoframe electrocatalysts offer high surface area, but complex structures like double-layered nanoframes remain undeveloped.
Developing advanced nanostructures is crucial for enhancing catalytic efficiency in energy conversion.

Purpose of the Study:

To synthesize a novel multimetallic double-layered nanoframe (DNF) structure.
To investigate the electrocatalytic performance of the DNF for the oxygen evolution reaction (OER).

Main Methods:

A one-step synthesis strategy using dual Ir, Ni, and Cu precursors.
Selective etching to transform core-shell alloy@alloy structures into the DNF.
Electrochemical characterization to evaluate OER activity and durability.

Main Results:

Successfully synthesized a robust Ir-based multimetallic DNF with rhombic dodecahedral morphology.
The IrNiCu DNF demonstrated significantly higher OER activity and durability than commercial Ir/C catalysts.
Controlled synthesis allowed for tuning DNF morphology and creating core-shell structures.

Conclusions:

The developed DNF structure represents a breakthrough in nanoframe catalyst design.
The enhanced OER performance is attributed to the unique frame structure and in situ formed rutile IrO2.
This work paves the way for next-generation electrocatalysts for energy applications.