Issue 12, 2021

Crystalline porphyrin-based graphdiyne for electrochemical hydrogen and oxygen evolution reactions

Abstract

Two-dimensional graphdiyne (GDY) materials bearing functional photoelectric units have gained much attention due to their unique 2D structure and the sp hybridized carbon. Herein, we prepared a crystalline porphyrin-based graphdiyne through Glaser–Hay coupling reactions. The accurate structure information was acquired through the SAED analysis and simulation. By simply treating with a Co2+ solution, the Co-loaded porphyrin-graphdiyne (CoPor-GDY) could be easily obtained and can serve as a bifunctional electrocatalyst for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) in alkaline solution. Numerous electrocatalytic sites from Co-porphyrin moieties cooperate with the rapid transport of the butadiyne groups. In addition, the extended 2D porous structure of CoPor-GDY could provide effective transporting channels for the diffusion of small molecules and finally lead to efficient catalytic performance. CoPor-GDY exhibited an overpotential of 308 mV at 10 mA cm−2 and a Tafel slope of 68 mV dec−1 for the HER and an overpotential of 400 mV at 10 mA cm−2 and a Tafel slope of 129 mV dec−1 for the OER. This work explored a new route for the design of a non-noble metal-coordinated GDY analogue electrocatalyst for new energy devices.

Graphical abstract: Crystalline porphyrin-based graphdiyne for electrochemical hydrogen and oxygen evolution reactions

  • This article is part of the themed collection: Graphyne

Supplementary files

Article information

Article type
Research Article
Submitted
20 fev 2021
Accepted
29 mar 2021
First published
08 apr 2021

Mater. Chem. Front., 2021,5, 4596-4603

Crystalline porphyrin-based graphdiyne for electrochemical hydrogen and oxygen evolution reactions

Q. Pan, X. Chen, H. Liu, W. Gan, N. Ding and Y. Zhao, Mater. Chem. Front., 2021, 5, 4596 DOI: 10.1039/D1QM00285F

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