Issue 42, 2019

Oxygen-assisted stabilization of single-atom Au during photocatalytic hydrogen evolution

Abstract

Pre-treatment of graphitic carbon nitride (GCN) with H2O2 introduces active C–OH groups that can react with HAuCl4 to immobilize single atom Au(I) in the GCN matrix through creating robust Au(I)–O coordination bonds. This strong bonding can effectively restrict the diffusion of intermediate Au(0) towards the formation of Au particles during the photocatalytic hydrogen evolution process. As such, the single atom Au(I) incorporated GCN maintained superior activities with excellent stabilities for photocatalytic hydrogen generation.

Graphical abstract: Oxygen-assisted stabilization of single-atom Au during photocatalytic hydrogen evolution

Supplementary files

Article information

Article type
Communication
Submitted
18 Sept. 2019
Accepted
11 Okt. 2019
First published
16 Okt. 2019

J. Mater. Chem. A, 2019,7, 24217-24221

Oxygen-assisted stabilization of single-atom Au during photocatalytic hydrogen evolution

L. Zeng, C. Dai, B. Liu and C. Xue, J. Mater. Chem. A, 2019, 7, 24217 DOI: 10.1039/C9TA10290F

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