Visible light driven low temperature photoactive energy storage materials for high rate thermal output system

Yang, Xiangyu; Li, Shijie; Zhao, Jianguo; Wang, Xiaomin; Huang, Hongyu; Wang, Yongzhen

doi:10.1016/j.solmat.2021.111330

Cited by 7 publications

(2 citation statements)

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“…under sunlight. [41] In deed, visible light usually poses a barrier to energy storage because it can induce the high-energy isomers back to the low-energy isomers, which poses a challenge to fabricating MOST systems that can store efficiently visible light photon energy. [42] Fortunately, recent studies have successfully developed molecular photoswitches that can convert and Small 2022, 18, 2107473 [39] Copyright 2020, Wiley-VCH.…”

Section: Most Systems Towards Visible Light Photon Energy Storagementioning

confidence: 99%

Molecular Solar Thermal Systems towards Phase Change and Visible Light Photon Energy Storage

Wang

2022

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energy storage systems. [3] These photoswitches, which have the unique advantages of being environmentally friendly, easily transportable, rechargeable, and renewable, mainly include norbornadiene/quadricyclane (NBD/QC) couples, [4] dihydroazulene/vinylheptafulvene (DHA/ VHF) couples, [5] fulvalene dimetal complexes (FvRu2(CO)4), [6] and azobenzene compounds, [7] shown in Figure 1. Among them, the NBD/QC, DHA/VHF, and FvRu 2 (CO) 4 are usually studied in solution state or liquid-based flow systems, and they normally store the photon energy of UV light. [8] Azobenzene compounds, the most widely investigated molecular photoswitches, are considered to be the most promising candidates for the development of diversified MOST systems due to the easy functionalization, well-known trans/cis-configuration, altering physical properties. [9] The molecular photoswitches have been paid more and more attention for over 30 years. Yoshida in 1985, Brun et al. in 1991, and Dubonosov et al. in 2002 summarized the major findings and presented the basis for the development of early MOST systems. [10] It is noted that MOST systems should display high storage performances, high energy conversion efficiency, excellent cycling stability, and the ability to utilize light from a wide solar spectrum. [11] In recent years, many efforts have been made to overcome the abovementioned issues, and the applications of MOST systems have also been expanded significantly. [12] Feng and colleagues have comprehensively reviewed the progress of MOST systems from the perspective of design, properties, and applications. [13] Wu and coworkers have summarized the solar thermal energy conversion and storage of polymer-based MOST systems. [14] Moth-Poulsen and co-workers have systematically described the engineering of MOST systems for solar thermal energy storage applications, such as solution-state or liquid-based flow systems for solar water heating and thermal control of the built environment. [15] However, these reviews on MOST systems have focused on strategies to enhance the storage performances and develop applications, including molecular template assembly and molecular engineering. [16] The further development and application of MOST systems are still limited by storage energy density and UV light photon energy storage. [17] Fortunately, many pioneering works have been devoted recently to the development of MOST systems towards phase change (PC) characteristics and visible light photon energy storage. The PC characteristics

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Section: Most Systems Towards Visible Light Photon Energy Storagementioning

confidence: 99%

Molecular Solar Thermal Systems towards Phase Change and Visible Light Photon Energy Storage

Wang

2022

Small

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“…49 Another issue limiting the development of Azo–MOST systems is their poor thermal stability, as most Azo compounds tend to decompose at temperatures below 200 °C. 50 Additionally, while UV light catalyzes the trans -to- cis isomerization of Azo, it also induces a partial reversion of cis -Azo to its ground state, resulting in suboptimal solar energy utilization efficiency. 51 Addressing these issues through molecular design remains an essential task for advancing clean energy technologies.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the performance of phase-change azobenzene: from trial and error to machine learning

Wang,

Yu,

Gao

et al. 2024

J. Mater. Chem. C

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Visible light‐responsive azo‐based smart materials: Design, performance, and applications in energy storage

Lv,

Zhang,

Wang

et al. 2024

Smart Molecules

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Azobenzene and its derivatives are the most extensively investigated and applied molecular photoswitches, which can undergo reversible transformation between trans and cis isomers upon irradiation with light at specific wavelengths. Through structural geometry transformation, the property alterations can be integrated into smart materials to meet diverse application requirements. Most azo‐based photoswitches require UV light for activation. However, complete activation within the visible or even near‐infrared light range could offer several benefits for photoswitch applications, including improved biocompatibility, better light penetration, and enhanced solar light utilization efficiency. This review presents an overview of the development of visible‐light responsive azo‐based materials, covering molecular design strategies and their applications in energy storage. Recent efforts aimed at enhancing the performance of azo‐based energy storage materials are highlighted. According to the different strategies for improving energy storage properties, these materials are categorized as those that directly increase isomerization energy and those that introduce phase transition energy. Furthermore, we discuss the challenges and opportunities in this field with a view to inspire further exploration.

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Visible light driven low temperature photoactive energy storage materials for high rate thermal output system

Cited by 7 publications

References 50 publications

Molecular Solar Thermal Systems towards Phase Change and Visible Light Photon Energy Storage

Molecular Solar Thermal Systems towards Phase Change and Visible Light Photon Energy Storage

Optimizing the performance of phase-change azobenzene: from trial and error to machine learning

Visible light‐responsive azo‐based smart materials: Design, performance, and applications in energy storage

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