Title
Coupling hydrothermal and photothermal single-atom catalysis toward excellent water splitting to hydrogen
Authors
Xiaojie Li
Shiyong Zhao
Xiaoguang Duan
Huayang Zhang
Shi-ze Yang
Panpan Zhang
San Ping Jiang
Shaomin Liu
Hongqi Sun, Edith Cowan UniversityFollow
Shaobin Wang
Document Type
Journal Article
Publication Title
Applied Catalysis B: Environmental
Volume
283
Publisher
Elsevier
School
School of Engineering
RAS ID
32804
Funders
Australian Research Council
Grant Number
ARC Number : DP150103026DP170104264DP150102044DP180100731 DP180100568
Grant Link
http://purl.org/au-research/grants/arc/DP150103026 http://purl.org/au-research/grants/arc/DP170104264 http://purl.org/au-research/grants/arc/DP150102044 http://purl.org/au-research/grants/arc/DP180100731 http://purl.org/au-research/grants/arc/DP180100568
Abstract
© 2020 Elsevier B.V. Photocatalytic hydrogen evolution reaction (PER) suffers from deficient solar light efficiency, high cost of noble-metal cocatalysts and low responses to visible and infrared light. In this article, we report single-atom silver incorporated g-C3N4 (SAAg-g-CN) as a low-cost and stable catalyst with higher activities in PER and solar-heat-assisted PER processes than Ag nanoparticle decorated g-C3N4 (AgNP-g-CN) and PtNP-g-C3N4. The excellent activity of SAAg-g-CN is benefited from the proper Gibbs free energy of the adsorbed hydrogen atom (ΔGH*) and robust structure of N-Ag bonding of the SAAg-g-CN. The PER rate of SAAg-g-CN at 55 °C was doubled as compared to that at 25 °C, meanwhile, AgNP-g-CN and PtNP-g-CN showed descending PER performances, due to the agglomeration of metal NPs. This work demonstrates the ultrahigh photoactivity and photothermal stability of SAAg-g-CN, and its potential in facilitating the full exploitation of solar energy.
DOI
10.1016/j.apcatb.2020.119660
Access Rights
subscription content
Research Themes
Natural and Built Environments
Priority Areas
Sustainability of energy, water, materials and resources
Comments
Li, X., Zhao, S., Duan, X., Zhang, H., Yang, S. Z., Zhang, P., … Wang, S. (2021). Coupling hydrothermal and photothermal single-atom catalysis toward excellent water splitting to hydrogen. Applied Catalysis B: Environmental, 283, article 119660. https://doi.org/10.1016/j.apcatb.2020.119660