Upgrading of waste polyolefins with non-noble metal catalysts

IF 9.3 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Green Chemistry Pub Date : 2025-03-07 DOI:10.1039/d4gc06105e

Jiahui Zhan , Ruihong Dai , Rongfei Cong , Yitong Dan , Hu Luo , Haozhi Zhou , Lin Xia , Shicheng Zhang , Hui Wang

{"title":"Upgrading of waste polyolefins with non-noble metal catalysts","authors":"Jiahui Zhan , Ruihong Dai , Rongfei Cong , Yitong Dan , Hu Luo , Haozhi Zhou , Lin Xia , Shicheng Zhang , Hui Wang","doi":"10.1039/d4gc06105e","DOIUrl":null,"url":null,"abstract":"<div><div>The rapid growth of waste polyolefin plastics poses a great threat to the environment and human health; hence there is an urgent requirement of efficient and environment-friendly upgrading methods. Aiming to utilize these hazardous substances and reduce energy consumption in a green way, most of the current studies use noble metal catalysts for the conversion of plastic waste, while non-noble metal catalysts have gradually attracted attention in the upgrading of waste polyolefins due to their abundant reserves, low cost, and potential to offer more sustainable alternatives. This paper provides a comprehensive review of Ni and Co-based and other catalysts in the hydrocracking, hydrogenolysis and tandem catalysis of polyolefins in recent years. It highlights the significance of the catalyst composition and support structure, which are key factors in determining the efficiency and selectivity of the conversion processes. The structure–activity relationships of these catalysts are also discussed to reveal how active site and structure design can influence the yield of desirable products while minimizing by-product formation and environmental impact. In addition, the challenges and prospects of non-noble metal catalysts in the selective upgrading of waste polyolefins in a circular economy are described to provide a theoretical foundation for the design and development of more efficient and stable catalysts, while inspiring further research in the green upgrading of waste polyolefins.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 13","pages":"Pages 3398-3412"},"PeriodicalIF":9.3000,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Green Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/org/science/article/pii/S1463926225001505","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

The rapid growth of waste polyolefin plastics poses a great threat to the environment and human health; hence there is an urgent requirement of efficient and environment-friendly upgrading methods. Aiming to utilize these hazardous substances and reduce energy consumption in a green way, most of the current studies use noble metal catalysts for the conversion of plastic waste, while non-noble metal catalysts have gradually attracted attention in the upgrading of waste polyolefins due to their abundant reserves, low cost, and potential to offer more sustainable alternatives. This paper provides a comprehensive review of Ni and Co-based and other catalysts in the hydrocracking, hydrogenolysis and tandem catalysis of polyolefins in recent years. It highlights the significance of the catalyst composition and support structure, which are key factors in determining the efficiency and selectivity of the conversion processes. The structure–activity relationships of these catalysts are also discussed to reveal how active site and structure design can influence the yield of desirable products while minimizing by-product formation and environmental impact. In addition, the challenges and prospects of non-noble metal catalysts in the selective upgrading of waste polyolefins in a circular economy are described to provide a theoretical foundation for the design and development of more efficient and stable catalysts, while inspiring further research in the green upgrading of waste polyolefins.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Green Chemistry 化学-化学综合

CiteScore

16.10

自引率

7.10%

发文量

677

审稿时长

1.4 months

期刊介绍： Green Chemistry is a journal that provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998), which defines green chemistry as the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry aims to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The journal welcomes submissions on all aspects of research relating to this endeavor and publishes original and significant cutting-edge research that is likely to be of wide general appeal. For a work to be published, it must present a significant advance in green chemistry, including a comparison with existing methods and a demonstration of advantages over those methods.