4.6 Article

Rapidly tuning the electrocatalytic activity of perovskite oxides by plasma treatment

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 11, Issue 45, Pages 24982-24990

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d3ta05214a

Keywords

-

Ask authors/readers for more resources

This study proposes a method to rapidly prepare exsolution-based nanocatalysts using dielectric barrier discharge (DBD) plasma. By hydrogen plasma treatment, nanocatalysts with small particle size and high particle density can be obtained in several minutes. The treated electrodes show better electrochemical performance due to the increased active sites.
Exsolution-based nanocatalysts can effectively improve the electrochemical kinetics of the perovskite electrodes for solid oxide cells. For the conventionally gas-induced exsolution, it is generally time-consuming, with several hours or even longer needed to fabricate the nanoparticle-decorated material (NDM). For the first time, we propose to use dielectric barrier discharge (DBD) plasma to rapidly prepare exsolution-based nanocatalysts. Here, we report that, by hydrogen plasma treatment, nanocatalysts with small particle size and high particle density can be obtained in several minutes, benefitting from the significantly enhanced exsolution kinetics under the plasma bombardment. We report that as compared to that of the as-prepared and gas-treated LCTN electrodes, much better electrochemical performance is achieved by the plasma-treated LCTN electrode, deriving from the increased active sites. Our study creates an advanced technique to efficiently prepare NDMs, which can be applied in all-solid electrochemical cells or other energy generation and conversion devices. Exsolution-based nanoparticle-decorated materials can be rapidly fabricated in several minutes by plasma treatment.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available