Phenanthrenequinone-Modified Conjugated Polymer Enabling Photocatalytic H2O2 Generation via Efficient O2− Conversion

IF 24.4 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Advanced Energy Materials Pub Date : 2025-01-29 DOI:10.1002/aenm.202405687

Xinyu Sun, Tingyu Yang, Yuming Dong, Rong Ji, Hui Zhao, Jiawei Zhang, Yongfa Zhu

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引用次数: 0

Abstract

The photocatalytic O₂ reduction reaction offers a promising approach to synthesizing H₂O₂. Nevertheless, the low conversion efficiency of O₂⁻ constrains the efficiency of photocatalytic H₂O₂ production. This is because O₂ can readily obtain electrons to generate O₂⁻, but it is challenging to reacquire electrons after generating O₂⁻. Accordingly, this study proposes the improvement of the conversion efficiency of O₂⁻ through the directional enrichment of photogenerated charges at sites of O₂⁻ reduction and stabilization of O₂⁻. This study introduces a phenanthrenequinone group with adjacent carbonyl groups as the O₂⁻ reduction reaction site. The directional enrichment of photogenerated charges at the O₂⁻ reduction site enhances the probability of O₂⁻ obtaining electrons. Concurrently, the special adsorption configuration enhances the adsorption, and stabilizes·O₂⁻ on the catalyst surface, accelerating the conversion of O₂⁻ to H₂O₂ and achieving an H₂O₂ generation rate of 3400 µmol g⁻¹ h⁻¹. This work presents an innovative tactic regarding the efficient reduction of O₂⁻ to H₂O₂, which informs the structural design of advanced photocatalytic systems for the production of H₂O₂.

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来源期刊

Advanced Energy Materials CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

41.90

自引率

4.00%

发文量

889

审稿时长

1.4 months

期刊介绍： Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small. With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics. The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.