Solar Photochemistry in Flow.

Solar Photochemistry in Flow.
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DOI:
10.1007/s41061-018-0223-2
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发表时间:
2018-11-19
期刊:
Topics in current chemistry (Cham)
影响因子:
--
通讯作者:
Noël T
Noël T
中科院分区:
其他
文献类型:
--
作者:
Cambié D;Noël T

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近年来,光化学是一个非常活跃的研究领域。这种复兴与光氧化还原催化的兴起有关,光氧化还原催化是一种使用可见光光子作为无迹试剂的合成方法的通用平台。与紫外线相比,可见光几乎占地面太阳辐照度的一半,这使得在化学中使用太阳能成为一种可持续和可行的可能性。然而,直接利用阳光为化学反应提供动力的研究仍然很少。这可以用与太阳辐射相关的障碍(例如,它的可变性,不可重复性,高红外含量等)和对专门光反应器的需求来解释。这些问题中的大多数都可以通过技术解决方案来解决,特别是借助流动化学。流动化学与光化学携手并进,因为它为反应提供了均匀的照射。此外,连续流反应器可以很容易地与不同的太阳能集热器(包括复合抛物面聚光器和发光太阳能聚光器)集成,并构成最有效的太阳能光化学方法。在描述了与化学相关的太阳辐射的特征之后,本章批判性地描述了不同类型的太阳能光反应器及其在合成有机化学中的应用。最后,对流动太阳能光化学的发展前景进行了展望。
In recent years, photochemistry has been a highly active research field. This renaissance is linked to the upsurge of photoredox catalysis, a versatile platform for synthetic methodologies using visible light photons as a traceless reagent. In contrast with UV, visible light constitutes almost half of the ground solar irradiance, making the use of solar light in chemistry a sustainable and viable possibility. However, the direct use of sunlight to power chemical reactions is still little explored. This can be explained by both the hurdles associated with solar radiation (e.g., its variability, irreproducibility, high IR content, etc.) and the need for a specialized photoreactor. Most of these issues can be tackled with technological solutions, and especially with the recourse to flow chemistry. Flow chemistry goes hand in hand with photochemistry thanks to the uniform irradiation it provides to the reaction. Furthermore, a continuous-flow reactor can be easily integrated with different solar collectors (including compound parabolic concentrators and luminescent solar concentrators) and constitutes the most efficient approach to solar photochemistry. After a description of the characteristics of the solar radiation relevant to chemistry, this chapter critically describes the different type of solar photoreactors and their applications in synthetic organic chemistry. Finally, an outlook on the future of solar photochemistry in flow is included.
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