催化转化西洛-寡合物到furfural在粉碎前水解液使用基功能化共价有机框架
Kai Zhang1, Huanmei Xia1, Guangyao Cheng1
1State Key Laboratory of Green Papermaking and Resource Recycling, Key Laboratory of Pulp and Paper Science and Technology of Education Ministry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
一种新型的基功能化共价有机框架 (COF),TAPB-DHPA,有效地将氧化 (XOS) 转化为furfural. 这种COF催化剂表现出高产量,选择性和稳定性,推动了生物炼油应用.
科学领域:
- 生物质转换生物质转换
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
背景情况:
- 对生物炼油厂来说,有效地将纤维素蛋白转化为平台化学品至关重要.
- 可再生碳资源需要先进的催化方法来提高价值.
研究的目的:
- 合成和应用一个基功能化共价有机框架 (COF),TAPB-DHPA,用于将基糖 (XOS) 转化为furfural.
- 研究TAPB-DHPA在生物质转化中的催化性能,稳定性和可回收性.
主要方法:
- 在现场合成TAPB-DHPA,一种基功能化COF.
- 使用TAPB-DHPA在优化条件下 (0.16重量%催化剂,180°C,3小时) 催化转化XOS为furfural.
- COF属性的表征,包括表面积,多孔结构,热稳定性和酸性位点.
主要成果:
- TAPB-DHPA具有很大的特定表面积,发达的多孔结构和热稳定性.
- 在TAPB-DHPA上丰富的布伦斯特酸位点促进了高的催化活性.
- 在最佳条件下,从XOS获得高达65.4%的furfural,这归因于增强水解和脱水的p-π结合效应.
- 催化剂在六个循环后保持了超过59.9%的furfural产量,显示出出色的可回收性和稳定性.
结论:
- TAPB-DHPA是一种有效的催化剂,用于将XOS转化为具有高产率和选择性的furfural.
- 在催化机制中,p-π合效应起着关键作用.
- 这项研究提供了关于使用功能化COF用于生物质转换的见解,支持纸和造纸行业向生物炼油厂的过渡.
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