A Reusable, Impurity-Tolerant and Nobel-Metal-Free Catalyst for Hydrocracking of Waste Polyolefins

doi:10.1126/sciadv.adg5332

	A Reusable, Impurity-Tolerant and Nobel-Metal-Free Catalyst for Hydrocracking of Waste Polyolefins
	Qiu ZT(邱泽天)1 ; Siyu Lin1 ; Zhuo Chen1 ; Anqi Chen1 ; Yitian Zhou1 ; Xudong Cao1 ; Yu Wang 2; Bo-Lin Lin1
	2023-06
发表期刊	SCIENCE ADVANCES (IF:11.7[JCR-2023],13.7[5-Year])
ISSN	2375-2548
EISSN	2375-2548
卷号	9 期号:25
发表状态	已发表
DOI	10.1126/sciadv.adg5332
摘要	One-step conversion of low-purity polyolefins to value-added products without pretreatments represents a great opportunity for chemical recycling of waste plastics. However, additives, contaminants, and heteroatom-linking polymers tend to be incompatible with catalysts that break down polyolefins. Here, we disclose a reusable, noble metal–free and impurity-tolerant bifunctional catalyst, MoSx-Hbeta, for hydroconversion of polyolefins into branched liquid alkanes under mild conditions. The catalyst works for a wide scope of polyolefins, including different kinds of high–molecular weight polyolefins, polyolefins mixed with various heteroatom-linking polymers, contaminated polyolefins, and postconsumer polyolefins with/without cleaning under 250°C and 20 to 30 bar H2 in 6 to 12 hours. A 96% yield of small alkanes was successfully achieved even at a temperature as low as 180°C. These results demonstrate the great potentials of hydroconversion in practical use of waste plastics as a largely untapped carbon feedstock. Copyright © 2023 The Authors, some rights reserved.
关键词	Additives Catalysts Elastomers Plastic products Polyolefins Precious metals Chemical recycling Heteroatoms Hydroconversion Low purity Metal-free catalysts Pre-treatments Recycling of wastes Value added products Waste plastic ]+ catalyst
收录类别	EI
语种	英语
出版者	American Association for the Advancement of Science
EI入藏号	20233514661895
EI主题词	Paraffins
EI分类号	547.1 Precious Metals ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 815.1.1 Organic Polymers ; 817.1 Polymer Products ; 818.2 Elastomers
原始文献类型	Journal article (JA)
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/346504
专题	物质科学与技术学院_博士生物质科学与技术学院_PI研究组_林柏霖组物质科学与技术学院_硕士生物质科学与技术学院_本科生
通讯作者	Bo-Lin Lin
作者单位	1.shanghaitech university 2.Shanghai Synchrotron Radiation Facility
第一作者单位	上海科技大学
通讯作者单位	上海科技大学
第一作者的第一单位	上海科技大学
推荐引用方式 GB/T 7714	Qiu ZT,Siyu Lin,Zhuo Chen,et al. A Reusable, Impurity-Tolerant and Nobel-Metal-Free Catalyst for Hydrocracking of Waste Polyolefins[J]. SCIENCE ADVANCES,2023,9(25).
APA	Qiu ZT.,Siyu Lin.,Zhuo Chen.,Anqi Chen.,Yitian Zhou.,...&Bo-Lin Lin.(2023).A Reusable, Impurity-Tolerant and Nobel-Metal-Free Catalyst for Hydrocracking of Waste Polyolefins.SCIENCE ADVANCES,9(25).
MLA	Qiu ZT,et al."A Reusable, Impurity-Tolerant and Nobel-Metal-Free Catalyst for Hydrocracking of Waste Polyolefins".SCIENCE ADVANCES 9.25(2023).