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Yolk–shell or yolk-in-shell nanocatalysts? A proof-of-concept study

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Abstract

The development of advanced nanocatalysts, especially those integrating high catalytic activity and recyclability, is a rapidly developing field in nanocatalysis and nanomaterials science. Yolk–shell nanostructures comprising a noble metal nanoparticle as the movable core inside a hollow cavity have been proven as promising nanocatalysts towards various catalytic reactions. Herein, we developed a new class of yolk-in-shell nanocatalysts. For the proof-of-concept study, Au@mesoporous carbon (Au@C) yolk-in-shell nanostructures, where a single Au nanoparticle is incorporated into the shell of a mesoporous carbon hollow nanosphere, have been synthesized. In comparison with Au@C yolk–shell nanocatalysts with a single movable Au nanoparticle inside the hollow cavity of mesoporous carbon, Au@C yolk-in-shell nanocatalysts show incredibly improved catalytic activity and recyclability. The concept of developing yolk-in-shell nanocatalysts will be instructive for preparing robust nanocatalysts towards advanced nanocatalysis.

Graphical abstract: Yolk–shell or yolk-in-shell nanocatalysts? A proof-of-concept study

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Article information


Submitted
07 Dec 2019
Accepted
16 Feb 2020
First published
17 Feb 2020

J. Mater. Chem. A, 2020, Advance Article
Article type
Paper

Yolk–shell or yolk-in-shell nanocatalysts? A proof-of-concept study

J. Hu, R. Li, J. Han, J. Sun, Y. Wang, L. Yu and R. Guo, J. Mater. Chem. A, 2020, Advance Article , DOI: 10.1039/C9TA13390A

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