【作者】 唐炳涛； 张宇昂； 吕荣文； 张淑芬；

【Author】 Bingtao Tang;Yuang Zhang;Rongwen Lv;Shufen Zhang;State Key Laboratory of Fine Chemicals, Dalian University of Technology;

【机构】 大连理工大学精细化工国家重点实验室；

【摘要】 太阳能具有利用清洁、取之不尽、用之不竭等特性,已成为解决人类能源危机、环境污染和温室效应等全球性问题的有效途径之一,是人类社会发展的理想替代能源。然而到达地球表面的太阳辐射能密度低,受季节、气候、时间及纬度等自然条件变化而变动,且具有稀薄、非连续和不稳定性等缺点,因此储能密度大、相变温度变化小的相变储能材料在太阳能清洁利用中得到极大关注。但占太阳辐射能40%的可见光低的热效应,不能直接被相变储能材料所利用。本文针对此科学问题,设计合成了光热转换定形相变储能材料,即以色素(染料和碳材料)为太阳光吸收介质实现太阳可见光的捕集与光热转换,以高热焓值的聚醚为相变储能材料通过相转变来实现能量储存和释放,构筑具有光热转换与相变储能于一体的功能材料,实现对太阳可见光的有效利用。更多还原

【Abstract】 The conversion, storage and application of solar energy are attracting considerable attention because of the cleanliness and renewability of this type of energy. But it is difficult to overcome the intermittence of time and space solar irradiation, and the visible light which accounts for approximately 40% of solar radiation almost cannot be directly or effectively applied due to low thermal efficiency. Focusing on this problem, novel photothermal conversion phase change materials were obtained via a visible light-driven reversible phase transition based on dyes or pigments and phase change materials(PCMs). The dyes or pigments in the was used as an effective photon capturer and molecular heater of light-to-heat conversion, and the phase change material stored heat energy by a phase transition. These phase change materials provides a new platform for improving the solar radiation usage efficiency, which can be widely applied to fields related to energy conversion and storage.更多还原