非碳化 Pd 单原子催化剂以氨酸功能化树脂为支,用于氨酸衍生的化物强大的催化转移化
Tairan Pang1, Zhenglong Xue1, Guanhua Wang1
1State Key Laboratory of Bio-based Fiber Materials, Tianjin Key Laboratory of Pulp and Paper, College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China.
本研究介绍了一种新的非碳化方法,使用功能化的素制造先进的单原子催化剂 (SAC). 这些催化剂有效地转化生物质衍生化合物,展示稳定和选择性性能.
科学领域:
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
- 可持续化学 可持续化学
背景情况:
- 单原子催化剂 (SAC) 的性能高度依赖于支材料.
- 有机聚合物具有可调节的特性,但通常需要高温碳化,降解功能组并削弱催化剂性能.
- 生物质成分红具有作为支材料的潜力,但其在SAC中的直接应用具有挑战性.
研究的目的:
- 开发一种可持续的,非碳化战略,用于合成有机聚合物支持的SACs.
- 利用功能化素作为原子分散 (Pd) 的支.
- 研究生物质衍生化学转化中开发的SACs的催化性能.
主要方法:
- 合成的功能化基于的树脂 (N-LPR) 支持使用氨溶液而不需要高温碳化.
- 在室温下将原子分散的 (Pd) 固定在N-LPR支上,形成Pd@N-L3PR-50%的催化剂.
- 评估了Pd@N-L3PR-50%的催化活性,选择性和稳定性,用于素转化和其他素衍生的化物.
主要成果:
- 开发的N-LPR支持具有纳米链结构,高表面积和丰富的氨基基团.
- 在室温下通过Pd-N协调实现了Pd位点的稳定定.
- 证明了大约100%的氨酸转化率和97.91%的选择性对80°C的2-甲基-4-甲基.
- 显示出出色的循环稳定性和适应性,以各种木质素衍生的化物.
结论:
- 成功建立了一个简单的非碳化策略,用于制备以素为基础的SAC.
- 支持N-LPR促进了稳定的Pd-N协调,并为催化应用提供了出色的吸附能力.
- 这种方法为利用多功能有机聚合物作为生物质价值化中的SACs的支持提供了一个新的途径.
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