聚乳酸
催化作用
材料科学
胺化
还原胺化
化学
聚酯纤维
氨
化学工程
聚合物
有机化学
工程类
作者
Qiang Zhao,Jiaxue Hu,Zhenzheng Gui,Zhiwei Chang,Chundong Zhang,Yuhui Chen,Yong Huang,Peng Zhang,Fenfen Wang
标识
DOI:10.1002/cssc.202401727
摘要
Biodegradable polyesters, such as polylactic acid (PLA), is one of the most promising plastics with great potential to contribute to enabling a sustainable global circular economy. However, the efficient chemical upcycling of PLA plastic waste into high‐value chemicals remains a grand challenge. Herein, a series of Ru/CeFeOx catalysts with varying Ru loadings were developed for the catalytic amination of PLA plastic waste to alanine in the presence of ammonia. The as‐prepared catalysts exhibited exceptional catalytic activity, high selectivity, and excellent recyclability, achieving an alanine yield of 70.5% at 180 °C for 18 h, significantly surpassing previous reports. The outstanding catalytic performance can be primarily attributed to the presence of Fe species in Ru/CeFeOx, which generated more oxygen vacancies, provided abundant base sites, and enhanced reducibility, therefore accelerating the reaction rate and enhancing catalytic efficiency. This study presents an alternative strategy for the sustainable chemical upcycling of PLA plastic waste into alanine and the realization of a circular economy.
科研通智能强力驱动
Strongly Powered by AbleSci AI