Surface Engineered BiVO4 for Photoelectrochemical Alkene Epoxidation via Bromine Mediation

IF 19.3 1区材料科学 Q1 CHEMISTRY, PHYSICAL

ACS Energy Letters Pub Date : 2025-03-31 DOI:10.1021/acsenergylett.5c00389

Qingjie Wang, Linxiao Wu, Haiwen Shi, Jingshan Luo

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Abstract

Selective epoxidation of alkenes is essential in organic synthesis, yet achieving it under mild conditions presents significant challenges. Photoelectrochemical (PEC) alkene epoxidation driven by hypobromite (BrO^–, Br⁺) formation offers a green and sustainable route, and enhancing Br⁺ production is essential for achieving high product selectivity. A synergistic strategy that integrates water oxidation to hydrogen peroxide with bromide oxidation to bromine (Br₂) using a surface engineered BiVO₄ photoanode is presented. In situ generated H₂O₂ and Br₂ yield BrO^–, which serves as an active brominating (Br⁺) agent for alkene epoxidation. Consequently, the surface engineered BiVO₄ photoanode achieves over 98.1 ± 0.79% conversion rate and 91.9 ± 0.99% selectivity across various alkenes. An unbiased PEC tandem device is constructed by coupling a BiVO₄ photoanode for styrene epoxidation with a Cu₂O photocathode for hydrogen production, achieving simultaneous styrene oxide production with 86.4% selectivity and hydrogen production. Our work provides new insights into PEC organic synthesis and hydrogen production.

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来源期刊

ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment

CiteScore

31.20

自引率

5.00%

发文量

469

审稿时长

1 months

期刊介绍： ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.