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

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

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) to...

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Bibliographic Details
Main Authors: Zeng, Lei, Dai, Chunhui, Liu, Bin, Xue, Can
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2020
Subjects:
Engineering::Materials
Single Atom
Photocatalytic Hydrogen Evolution
Online Access:https://hdl.handle.net/10356/138192
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Institution: Nanyang Technological University
Language: English
Description
Summary: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.

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