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太阳能的开发和应用是目前解决能源危机的最具前景的方向.分子级光储热作为一种新型的太阳能存储与转化技术,在太阳能存储领域具有大规模应用的发展潜力.这种技术以有机分子的光致异构化为核心,在光照的条件下实现分子由低能量的稳态结构转变为高能量的亚稳态结构,并通过不同结构间固有的能极差达到将光能存储在分子的化学键中,在合适的条件下以热量的形式释放出来的目的.本文介绍了分子级光储热材料的储能机理,关键性能指标,常见光储热分子以及新型纳米结构的光储热材料,为研究和开发新型的高能长效的太阳能储热材料提供一定的理论基础.
The development and application of solar energy is the most promising direction to solve the energy crisis nowadays.As a new type of solar energy storage and conversion technology, molecular optical thermal storage has the potential for large-scale application in the field of solar energy storage, The photo-isomerization of molecules as the core, in the light of the conditions to achieve the molecular energy from low-energy steady-state structure into a high-energy metastable structure, and through the different structures can be very poor between the energy stored in the light Molecular chemical bond, and released under the appropriate conditions in the form of heat.This paper introduces the energy storage mechanism, key performance indicators, common photo-thermal storage molecules and new thermal storage of nanostructures Materials for the research and development of new high-energy long-term thermal energy storage materials provide a theoretical basis.