Simultaneously Producing H 2 and H 2 O 2 by Photocatalytic Water Splitting: Recent Progress and Future.

Autor: Cao S; College of Chemistry and Chemical Engineering, Institute for Sustainable Energy and Resources, Qingdao University, Qingdao, Shandong, 266071, China., Sun T; College of Chemistry and Chemical Engineering, Institute for Sustainable Energy and Resources, Qingdao University, Qingdao, Shandong, 266071, China., Peng Y; Leibniz Institute for Catalysis e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany., Yu X; College of Chemistry and Chemical Engineering, Institute for Sustainable Energy and Resources, Qingdao University, Qingdao, Shandong, 266071, China., Li Q; College of Chemistry and Chemical Engineering, Institute for Sustainable Energy and Resources, Qingdao University, Qingdao, Shandong, 266071, China., Meng FL; School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, China., Yang F; School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, China., Wang H; School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, China., Xie Y; School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, China., Hou CC; School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, China., Xu Q; Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Department of Chemistry and Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China.
Jazyk: angličtina
Zdroj: Small (Weinheim an der Bergstrasse, Germany) [Small] 2024 Nov; Vol. 20 (45), pp. e2404285. Date of Electronic Publication: 2024 Jul 27.
DOI: 10.1002/smll.202404285
Abstrakt: The solar-driven overall water splitting (2H 2 O→2H 2 + O 2 ) is considered as one of the most promising strategies for reducing carbon emissions and meeting energy demands. However, due to the sluggish performance and high H 2 cost, there is still a big gap for the current photocatalytic systems to meet the requirements for practical sustainable H 2 production. Economic feasibility can be attained through simultaneously generating products of greater value than O 2 , such as hydrogen peroxide (H 2 O 2 , 2H 2 O→H 2 + H 2 O 2 ). Compared with overall water splitting, this approach is more kinetically feasible and generates more high-value products of H 2 and H 2 O 2 . In several years, there has been an increasing surge in exploring the possibility and substantial progress has been achieved. In this review, a concise overview of the importance and underlying principles of PIWS is first provided. Next, the reported typical photocatalysts for PIWS are discussed, including commonly used semiconductors and cocatalysts, essential design features of these photocatalysts, and connections between their structures and activities, as well as the selected approaches for enhancing their stability. Then, the techniques used to quantify H 2 O 2 and the operando characterization techniques that can be employed to gain a thorough understanding of the reaction mechanisms are summarized. Finally, the current existing challenges and the direction needing improvement are presented. This review aims to provide a thorough summary of the most recent research developments in PIWS and sets the stage for future advancements and discoveries in this emerging area.
(© 2024 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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