Innovative upcycling of polyesters and polycarbonates via manganese-catalyzed hydrogenolysis

IF 6.5 1区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Catalysis Pub Date : 2025-03-06 DOI:10.1016/j.jcat.2025.116060

Guoren Zhou , Chongyan Ren , Xiaoshi Zhang , Bocheng Xu , Maofu Pang , Xiaoxiao Chu

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Abstract

Plastic pollution has become the second most significant environmental issue globally, following climate change. Traditional plastic recycling methods, such as mechanical and chemical recycling, suffer from low efficiency and significant ecological impacts. This study introduces a novel approach to the hydrogenolysis of polyesters and polycarbonates using a phosphine-free manganese-based pincer catalyst, achieving the efficient conversion of various plastics into valuable chemicals under mild conditions at lower temperatures and pressures. Experimental results demonstrate excellent catalytic activity and selectivity for transforming PET, PBT, PCL, PLA, and PC. Furthermore, the method has been successfully applied to the recycling of various commercial and post-consumer polyester and polycarbonate plastics, showcasing its potential for practical applications. This study not only provides a new perspective on plastic waste management but also offers important technical support for developing a circular economy.

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来源期刊

Journal of Catalysis 工程技术-工程：化工

CiteScore

12.30

自引率

5.50%

发文量

447

审稿时长

31 days

期刊介绍： The Journal of Catalysis publishes scholarly articles on both heterogeneous and homogeneous catalysis, covering a wide range of chemical transformations. These include various types of catalysis, such as those mediated by photons, plasmons, and electrons. The focus of the studies is to understand the relationship between catalytic function and the underlying chemical properties of surfaces and metal complexes. The articles in the journal offer innovative concepts and explore the synthesis and kinetics of inorganic solids and homogeneous complexes. Furthermore, they discuss spectroscopic techniques for characterizing catalysts, investigate the interaction of probes and reacting species with catalysts, and employ theoretical methods. The research presented in the journal should have direct relevance to the field of catalytic processes, addressing either fundamental aspects or applications of catalysis.