Issue 46, 2021

Surface and interface engineering of hollow carbon sphere-based electrocatalysts for the oxygen reduction reaction

Abstract

Hollow carbon spheres (HCSs) attract broad interest in the area of electrocatalysis, especially in the oxygen reduction reaction (ORR) owing to their high surface area, abundant accessible active sites, discrete voids, and uniform channel/pore structures. Recently, advances have been made in surface and interface engineering of HCS-based ORR electrocatalysts that include single atom anchored HCSs, heteroatom doped HCSs, nanoparticle confined HCSs, and dual/triple-layer structured HCSs. In this comprehensive review, we summarize and discuss recent advances in engineering the surface and interface of HCSs that act as efficient ORR electrocatalysts. We firstly introduce the design and fabrication strategies of HCS-based materials. Then, the ORR mechanism and theoretical approaches of HCS-based electrocatalysts are analyzed. We discuss in detail about the recent developments of HCS-based electrocatalysts for efficient ORR, particularly focusing on surface and interface engineering approaches, which include materials confinement in the void, surface modification, shell confinement, and heteroatom doping. Finally, we propose future directions for surface and interface engineering of HCSs for efficient ORR electrocatalysts.

Graphical abstract: Surface and interface engineering of hollow carbon sphere-based electrocatalysts for the oxygen reduction reaction

Article information

Article type
Review Article
Submitted
13 août 2021
Accepted
06 oct. 2021
First published
06 oct. 2021

J. Mater. Chem. A, 2021,9, 25706-25730

Surface and interface engineering of hollow carbon sphere-based electrocatalysts for the oxygen reduction reaction

C. Zhang, J. Li, C. Li, W. Chen and C. Guo, J. Mater. Chem. A, 2021, 9, 25706 DOI: 10.1039/D1TA06913F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements