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https://hdl.handle.net/2440/129190
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Type: | Journal article |
Title: | Coupling hydrothermal and photothermal single-atom catalysis toward excellent water splitting to hydrogen |
Author: | Li, X. Zhao, S. Duan, X. Zhang, H. Yang, S.Z. Zhang, P. Jiang, S.P. Liu, S. Sun, H. Wang, S. |
Citation: | Applied Catalysis B: Environmental, 2021; 283:119660-1-119660-9 |
Publisher: | Elsevier BV |
Issue Date: | 2021 |
ISSN: | 0926-3373 1873-3883 |
Statement of Responsibility: | Xiaojie Li, Shiyong Zhao, Xiaoguang Duan, Huayang Zhang, Shi-ze Yang, Panpan Zhang, San Ping Jiang, Shaomin Liu, Hongqi Sun, Shaobin Wang |
Abstract: | 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. |
Keywords: | Single atom; Hydrogen evolution; Photothermal; Catalysis; Carbon nitride; Silver cocatalyst |
Description: | Available online 21 October 2020. |
Rights: | © 2020 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.apcatb.2020.119660 |
Grant ID: | 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 http://purl.org/au-research/grants/arc/LE120100026 |
Published version: | http://dx.doi.org/10.1016/j.apcatb.2020.119660 |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
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