热解
硫黄
脱氢
碳纤维
材料科学
聚合物
化学工程
环境污染
分解
废物管理
有机化学
化学
催化作用
环境科学
复合材料
冶金
工程类
环境保护
复合数
作者
Youchen Tang,Zongheng Cen,Qian Ma,Bingna Zheng,Zhaopeng Cai,Shaohong Liu,Dehai Wu
标识
DOI:10.1002/advs.202206924
摘要
Abstract With the overconsumption of disposable plastics, there is a considerable emphasis on the recycling of waste plastics to relieve the environmental, economic, and health‐related consequences. Here, a sulfur‐assisted pyrolysis strategy is demonstrated for versatile upcycling of plastics into high‐value carbons with an ultrahigh carbon‐atom recovery (up to 85%). During the pyrolysis process, the inexpensive elemental sulfur molecules are covalently bonded with polymer chains, and then thermally stable intermediates are produced via dehydrogenation and crosslinking, thereby inhibiting the decomposition of plastics into volatile small hydrocarbons. In this manner, the carbon products obtained from real‐world waste plastics exhibit sulfur‐rich skeletons with an enlarged interlayer distance, and demonstrate superior sodium storage performance. It is believed that the present results offer a new solution to alleviate plastic pollution and reduce the carbon footprint of plastic industry.
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