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探索用于分子太阳能热能储存的ortho-dianthrylbenzenes
Nicolò Baggi1,2, Lidiya M Muhammad3, Zacharias Liasi4
1The Institute of Materials Science of Barcelona, ICMAB-CSIC Bellaterra 08193 Barcelona Spain kasper.moth-poulsen@upc.edu.
基于的新分子有效地将太阳能作为热量储存起来. 这些分子太阳能热系统提供了长时间的存储时间和高能量密度,为先进的热能解决方案铺平了道路.
科学领域:
- 化学 化学 化学
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
背景情况:
- 分子太阳能热 (MOST) 系统将太阳能以热的形式存储.
- 炭二聚体具有前景,但面临着光氧化和低效率等挑战.
- 探索新的分子设计对于推进MOST技术至关重要.
研究的目的:
- 作为潜在的MOST材料,研究五种设计的正形二烯.
- 为了应对与传统的二烯二聚合物相关的挑战.
- 评估化学修饰对储能性能的影响.
主要方法:
- 合成和表征五种正体二基.
- 在梅西中测量光二分化效率.
- 评估储能时间,密度和太阳能储能效率.
- 基于密度函数理论 (DFT) 的计算建模.
主要成果:
- 获得的光二分化量子收益率在11.5%至16%之间.
- 已证明储能时间从9年到37年不等.
- 报告的储能密度为0.140.2 MJ 千克-1.1.
- 太阳能储能效率从0.38%到0.66%不等.
结论:
- 设计的整形二烯显示出分子太阳能热应用的巨大潜力.
- 烯结合的烯基分子有效地提高了光二分化效率和稳定性.
- 为了高效的太阳能储能,需要对基于炭的光开关进行进一步的研究.
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