瑞胺和5-甲基瑞胺的热化学研究:实验和计算见解
Luísa M P F Amaral1, Ana R R P Almeida2, Manuel A V Ribeiro da Silva2
1LAQV/REQUIMTE (Laboratório Associado para a Química Verde), Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal.
Molecules (Basel, Switzerland)
|June 27, 2024
概括
可再生能源非常重要. 研究人员研究了从生物质中提取的furfurylamine和5-methylfurfurylamine的能量特性,以支持可持续的化学生产.
科学领域:
- 热化学 热化学 热化学
- 可再生能源可再生能源是可再生能源.
- 生物质转换生物质转换
背景情况:
- 从化石燃料向可再生能源的过渡是由资源枯竭,价格波动和环境问题驱动的.
- 基纤维素生物质为化学生产提供了可持续和丰富的原料,为化石燃料提供了替代品.
- 黄衍生物是可持续化学和燃料应用的关键中间体.
研究的目的:
- 为了确定furfurylamine和5-methylfurfurylamine的形成和蒸发的标准摩尔热量.
- 为了计算这些生物质衍生化合物形成的气相度.
- 用理论G3水平计算来验证实验热化学数据.
主要方法:
- 静态炸弹燃烧热度计被用来确定在298.15 K.燃烧的标准摩尔能量.
- 使用高温卡尔维特微热度测量方法,测量了在298.15 K 的蒸发的标准摩尔热量.
- 进行G3级理论计算进行比较分析和验证.
主要成果:
- 在气相中形成的标准摩尔热量被实验确定为 -43.5 ± 1.4) kJ·mol−1 对于furfurylamine 和 -81.2 ± 1.7) kJ·mol−1 对于5-methylfurfurylamine.
- 实验热化学数据与理论G3计算进行了比较,显示出良好的一致性并验证了结果.
- 分析了替代剂对这些furfural衍生物稳定性的影响,并与类似的化合物进行了比较.
结论:
- 确定了furfurylamine和5-methylfurfurylamine的精确热化学数据,这对于它们在可持续化学生产中的潜力至关重要.
- 该研究验证了结合实验和理论方法的使用,以确定生物质衍生化学品的能量特性.
- 了解这些化合物的能量特性有助于评估它们作为可再生燃料和化学品构建块的可行性.
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