Yolk–shell or yolk-in-shell nanocatalysts? A proof-of-concept study,Journal of Materials Chemistry A

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Yolk–shell or yolk-in-shell nanocatalysts? A proof-of-concept study
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2020-02-17 , DOI: 10.1039/c9ta13390a
Jun Hu _{1,

2,

3,

4} , Ruyi Li _{1,

2,

3,

4} , Jie Han _{1,

2,

3,

4} , Jia Sun _{1,

2,

3,

4} , Yang Wang _{1,

2,

3,

4} , Lei Yu _{1,

2,

3,

4} , Rong Guo _{1,

2,

3,

4}

Affiliation

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.

中文翻译：

卵黄壳或卵黄壳纳米催化剂？概念验证研究

先进的纳米催化剂的发展，特别是那些具有高催化活性和可回收性的纳米催化剂，是纳米催化和纳米材料科学领域中发展迅速的领域。包含贵金属纳米粒子作为空心腔内可移动核的卵壳纳米结构已被证明是有望实现各种催化反应的纳米催化剂。在本文中，我们开发了一种新型的带壳蛋黄纳米催化剂。为了进行概念验证研究，已经合成了Au @ mesoporous碳（Au @ C）的壳内蛋黄纳米结构，其中将单个Au纳米颗粒掺入到中孔碳空心纳米球的壳中。与中孔碳空心腔内具有单个可移动Au纳米颗粒的Au @ C卵黄壳纳米催化剂相比，Au @ C蛋黄壳纳米催化剂显示出令人难以置信的改善的催化活性和可回收性。开发蛋黄壳纳米催化剂的概念将对制备用于高级纳米催化的坚固纳米催化剂具有指导意义。

更新日期：2020-02-17

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