制备和表征由素衍生的碳气凝
Piia Jõul1, Oliver Järvik2, Heidi Lees2
1Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia.
Frontiers in chemistry
|January 23, 2024
概括
研究人员从可再生资源 - - 红素和甲中制造出新的有机气凝 (AGs). 这些基于素的AG可转化为具有可调节性质的多孔碳气凝 (CA),为先进材料提供可持续的途径.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可再生能源可再生能源是可再生能源.
背景情况:
- 素是一种可再生的芳香聚合物,是新型化学品和材料的有前途的原料,包括树脂和聚合物.
- 从树脂醇和甲 (FA) 合成的有机气凝 (AG) 是多孔碳材料的前体.
- 由于依赖于隔离方法的灵宁的可变结构,对材料开发提出了挑战,但为高碳产量材料提供了潜力.
研究的目的:
- 探索使用甲和5-甲基酸合成基于素的有机气凝 (AGs).
- 研究这些基于素的AGs转化为多孔碳气凝 (CA).
- 分析红素的起源和含量对产生的CA的特性的影响.
主要方法:
- 用甲和5 - 甲基氨酸对树水解氨酸和有机溶解氨酸 (来自松树) 进行多重凝结.
- 形成单质半孔有机气凝 (AGs).
- 在受控条件下的AGs的热解产生多孔碳气凝 (CA).
主要成果:
- 单质半孔AG已成功合成,其特定表面积高达343.4m2/g.
- 由此产生的以木质素为基础的AG显示出高碳产量,可转化为多孔碳材料.
- 发现衍生CA的形态,多孔性和特定表面积取决于素来源及其度.
结论:
- 是合成有机气凝 (AG) 和随后的多孔碳气凝 (CA) 的可行和可持续的前体.
- 素衍生CA的特性可以通过控制素的来源及其在合成混合物中的比例来定制.
- 这项研究突出了一个有前途的途径,用于将红素提升为先进的多孔碳材料.
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