优化热化学能量储存:对含有CaSiO,CaTiO和CaZrO的CaCO3复合材料进行了全面的分析
Terry D Humphries1, Adriana P Vieira1, Yurong Liu1
1Physics and Astronomy, Institute for Energy Transitions, Curtin University, GPO Box U1987, Perth, WA 6845, Australia. terry_humphries81@hotmail.com.
Physical chemistry chemical physics : PCCP
|July 11, 2024
概括
碳酸 (CaCO3) 与酸 (CaSiO3) 结合,显示出作为一个具有成本效益的热化学储能 (TCES) 材料的前景. 需要进一步改进,以提高其长期循环稳定性,以便在实际应用中使用.
科学领域:
- 材料科学 材料科学 材料科学
- 储能 储能 储能 储能 储能 储能
- 化学工程是化学工程的重要组成部分.
背景情况:
- 随着可再生能源需求的不断增长,需要高效的电池储能系统 (BESS).
- 热电池,包括热化学储能 (TCES),提供可扩展的热储解决方案.
- 碳酸 (CaCO3) 是一种低成本的TCES材料,但其长期循环性需要改进.
研究的目的:
- 研究将CaSiO3,CaTiO3和CaZrO3添加到CaCO3中,以提高TCES特性.
- 评估这些复合材料的反应特性,循环容量和热力学性能.
- 评估开发的TCES材料的成本效益和长期应用潜力.
主要方法:
- 同时差分扫描热度测量和热重度测量分析 (DSC-TGA) 用于循环寿命和热力学.
- 用于精确气体吸附测量的sieverts技术.
- 粉末X射线衍射 (XRD) 和扫描电子显微镜 (SEM) 用于反应路径分析.
主要成果:
- 该CaCO3-CaSiO3复合材料的成本低 (每千瓦每小时1.8美元),但需要颗粒精炼才能长寿.
- CaCO3-CaZrO3系统显示出良好的二氧化碳循环容量保留 (在100个循环中下降16%),但价格昂贵 (每千瓦小时30.9美元).
- CaCO3-CaTiO3系统在100个循环中显示了二氧化碳吸收的17%下降,每千瓦/小时的成本为11.1美元.
结论:
- 基于CaCO3的TCES材料提供了具有成本效益的储能潜力.
- 如果解决粒子稳定性问题,CaCO3-CaSiO3是有前途的候选物.
- 基于CaZrO3和CaTiO3的TCES系统的成本仍然是一个重要的障碍,尽管它们的性能.
相关概念视频
Strength and Heat of Hydration
227
The hydration of cement is an exothermic reaction in which heat is generated as cement hydrates. This heat of hydration is critical to cement's strength development. The rate at which this heat is generated affects the temperature rise, with a majority of the heat being released early in the hydration process, half within the first three days, and about 75% within the first week.
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
227
Hydration of Cement
217
Hydration of cement is a chemical reaction between cement particles and water. This process occurs primarily through two mechanisms: through-solution and topochemical. In the through-solution process, anhydrous compounds dissolve into their constituents, hydrates form in the solution, and then precipitate from the supersaturated solution. The topochemical process involves solid-state reactions at the cement particle surface. The through-solution process dominates the topochemical process at the...
217


