用于纯水过氧化氢光合作用的萘-醌电子供体-受体共价有机聚合物

IF 6 3区工程技术 Q2 ENERGY & FUELS

Solar RRL Pub Date : 2025-05-06 DOI:10.1002/solr.202500125

Yongxia Li, Jiafan Chu, Xingyu Zhang, Wenbo Li, Aiguo Kong

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引用次数: 0

摘要

采用一锅法合成了一种具有萘醌电子给体(D) -受体(A)结构的2,3-二氨基萘（DAN） 1,3,5-三甲酰间苯三酚(TP) β-酮胺键合共价有机聚合物（DAN-TP- ckp）。在可见光条件下，在o2饱和水中H2O2产率高达1120 μmol gcat−1 h−1，且具有较好的耐久性。这种效率归因于其晶体结构，大的比表面积（212 m2 g−1），强的可见光吸收，以及由其密集的电子D-A结构产生的高效电荷分离特性。两步单电子氧还原反应途径和可能的四步反应机理进一步阐明了其H2O2生成过程。d - a型无金属萘醌聚合物光催化剂具有高效、持久的H2O2光合作用性能。

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Naphthalene-Quinone Electron Donor–Acceptor Covalent Organic Polymers for Hydrogen Peroxide Photosynthesis in Pure Water

A 2,3-diaminonaphthalene (DAN) 1,3,5-triformylphloroglucinol (TP) β-ketoenamine-linked covalent organic polymer with naphthalene-quinone electron donor (D)–acceptor (A) structure (DAN-TP-CKP) was synthesized using a one-pot method. It exhibited a high H₂O₂ production rate of 1120 μmol g_cat⁻¹ h⁻¹ in O₂-saturated water under visible light, together with better durability. The efficiency is attributed to its crystalline framework, large specific surface area (212 m² g⁻¹), strong visible-light absorption, and efficient charge separation properties arising from its dense electron D–A structures. A two-step single-electron oxygen reduction reaction pathway with a probable four-step mechanism further elucidates its H₂O₂ generation process. This work highlights D–A-type naphthalene–quinone metal-free polymer photocatalysts with efficient and durable H₂O₂ photosynthesis performance.

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来源期刊

Solar RRL Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

12.10

自引率

6.30%

发文量

460

期刊介绍： Solar RRL, formerly known as Rapid Research Letters, has evolved to embrace a broader and more encompassing format. We publish Research Articles and Reviews covering all facets of solar energy conversion. This includes, but is not limited to, photovoltaics and solar cells (both established and emerging systems), as well as the development, characterization, and optimization of materials and devices. Additionally, we cover topics such as photovoltaic modules and systems, their installation and deployment, photocatalysis, solar fuels, photothermal and photoelectrochemical solar energy conversion, energy distribution, grid issues, and other relevant aspects. Join us in exploring the latest advancements in solar energy conversion research.