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A Flexible Method to Fabricate Exsolution-Based Nanoparticle-Decorated Materials in Seconds.

Zhu Sun¹, Weiwei Fan², Yu Bai³

¹State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)

|February 21, 2022

Summary

A novel thermal shock technique rapidly fabricates nanoparticle-decorated materials (NDMs) in seconds. This method enhances catalytic activity for perovskite applications, offering a faster, cost-effective alternative to traditional fabrication.

Keywords:

exsolution nanoparticle-decorated material solid oxide cell thermal shock

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Published on: February 11, 2018

Area of Science:

Materials Science
Catalysis
Nanotechnology

Background:

Tailoring perovskite catalytic activity by decorating metallic nanoparticles on oxide supports is crucial.
Conventional methods for fabricating nanoparticle-decorated materials (NDMs) are time-consuming and less efficient.

Purpose of the Study:

To introduce a rapid, cost-effective thermal shock technique for fabricating exsolution-based NDMs.
To investigate the impact of this new method on nanoparticle characteristics and electrochemical performance.

Main Methods:

Utilized a low-cost, size-tailorable carbon paper as a heating source for rapid thermal shocking.
Fabricated exsolution-based NDMs in approximately 13 seconds, including heating and treatment time.
Compared the fabricated NDMs with those prepared using conventional furnace-based methods.

Main Results:

Achieved higher particle density and smaller particle size of exsolved catalysts compared to furnace-based methods.
Demonstrated a 12-fold improvement in electrochemical performance for thermally shocked NDMs.
Established thermal shock as the fastest method to date for NDM fabrication.

Conclusions:

The thermal shock technique offers an economic and high-throughput approach for rapid NDM fabrication.
This method significantly enhances the flexibility and application of exsolution-based materials in electrochemical devices.
The developed technique promises to accelerate advancements in catalysis and energy storage.