Solar-driven H2O2 synthesis from H2O and O2 over molecular engineered organic framework photocatalysts

IF 15.7 1区 化学 Q1 CHEMISTRY, APPLIED
Wenjuan Zhang , Gang Liu
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引用次数: 0

Abstract

H2O2 is an environmentally friendly oxidant and a promising energy-containing molecule widely applied in industrial production, environmental remediation, and as a potential carrier for energy storage. Solar-driven conversion of earth-abundant H2O and O2 is the most ideal method for producing H2O2. Due to poor separation of photogenerated charge carriers in semiconductors, sacrificial reagents such as ethanol are typically added to consume photogenerated holes, but this is not an energy storage process. Therefore, developing efficient photocatalysts for direct H2O2 production from H2O and O2 without sacrificial agents is crucial for sustainable energy conversion. Organic framework materials, due to their customizable structures, have gained traction in the photosynthesis of H2O2 from pure H2O and O2. A series of functionalized molecules have been introduced as building blocks into organic frameworks to enhance the H2O2 production performance, but their key roles in performance and reaction pathways have not been summarized in detail so far. This review aims to address this gap and elucidate the relationship between the structure and performance of organic framework photocatalysts, providing insights and guidance for the development of efficient photocatalysts.
在分子工程有机框架光催化剂上利用太阳能从 H2O 和 O2 合成 H2O2
H2O2 是一种环境友好型氧化剂,也是一种前景广阔的含能分子,可广泛应用于工业生产、环境修复以及作为潜在的能量储存载体。太阳能驱动的地球上丰富的 H2O 和 O2 转换是生产 H2O2 的最理想方法。由于半导体中光生成的电荷载流子分离不佳,通常需要添加乙醇等牺牲试剂来消耗光生成的空穴,但这并不是一种能量存储过程。因此,开发无需牺牲试剂即可直接从 H2O 和 O2 生成 H2O2 的高效光催化剂对于可持续能源转换至关重要。有机框架材料因其可定制的结构,在从纯 H2O 和 O2 进行 H2O2 光合作用方面获得了广泛的关注。为了提高 H2O2 的生产性能,人们在有机框架中引入了一系列功能化分子作为构建模块,但迄今为止,还没有对它们在性能和反应途径中的关键作用进行详细总结。本综述旨在填补这一空白,阐明有机框架光催化剂的结构与性能之间的关系,为开发高效光催化剂提供见解和指导。
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来源期刊
Chinese Journal of Catalysis
Chinese Journal of Catalysis 工程技术-工程:化工
CiteScore
25.80
自引率
10.30%
发文量
235
审稿时长
1.2 months
期刊介绍: The journal covers a broad scope, encompassing new trends in catalysis for applications in energy production, environmental protection, and the preparation of materials, petroleum chemicals, and fine chemicals. It explores the scientific foundation for preparing and activating catalysts of commercial interest, emphasizing representative models.The focus includes spectroscopic methods for structural characterization, especially in situ techniques, as well as new theoretical methods with practical impact in catalysis and catalytic reactions.The journal delves into the relationship between homogeneous and heterogeneous catalysis and includes theoretical studies on the structure and reactivity of catalysts.Additionally, contributions on photocatalysis, biocatalysis, surface science, and catalysis-related chemical kinetics are welcomed.
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