Upgrading commercial plastics for high-yield production of porous carbon electrode materials

IF 5.1 3区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nanoscale Pub Date : 2025-09-20 DOI:10.1039/d5nr03051j

Yanqin Zheng, Fuwang Wen, Hai Li, Fu Fangbao, Xihong Zu, Yanwei Wang, Almagul Mentbayeva, Wenli Zhang

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Abstract

The recycling of commercial plastics can decrease dependence on fossil fuels. The preparation of carbon electrode materials from commercial plastics can enable the upgrading of waste plastics. Converting low-recycled commercial plastics to value-added porous carbon materials showed great potential toward low-carbon development. However, the conversion of commercial plastics to porous carbon has low yields during pyrolysis and chemical activation. We employed the CuCl₂ chemical activator and typical commercial plastics to prepare porous carbon, which achieved high yields exceeding 45%. The release of hydrocarbons during the pyrolysis of commercial plastics is inhibited by the dehydrogenation effect of the CuCl₂ activator, while the carbon-rich structure is stabilized by the aromatization reactions of the decomposition species. The porous carbon materials prepared by CuCl₂ activation have rich micropores and mesopores. These porous carbons exhibit excellent supercapacitor performance in aqueous electrolytes.

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为高产率生产多孔碳电极材料而升级商用塑料

商业塑料的回收利用可以减少对化石燃料的依赖。利用商用塑料制备碳电极材料，可以实现废塑料的升级换代。将低回收率的商业塑料转化为高附加值的多孔碳材料，具有巨大的低碳发展潜力。然而，在热解和化学活化过程中，商业塑料转化为多孔碳的产率很低。采用CuCl2化学活化剂和典型的商用塑料制备多孔碳，收率达到45%以上。CuCl2活化剂的脱氢作用抑制了商用塑料热解过程中烃类的释放，而富碳结构则通过分解物的芳构化反应得到稳定。CuCl2活化制备的多孔碳材料具有丰富的微孔和介孔。这些多孔碳在水性电解质中表现出优异的超级电容器性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nanoscale CHEMISTRY, MULTIDISCIPLINARY-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

12.10

自引率

3.00%

发文量

1628

审稿时长

1.6 months

期刊介绍： Nanoscale is a high-impact international journal, publishing high-quality research across nanoscience and nanotechnology. Nanoscale publishes a full mix of research articles on experimental and theoretical work, including reviews, communications, and full papers.Highly interdisciplinary, this journal appeals to scientists, researchers and professionals interested in nanoscience and nanotechnology, quantum materials and quantum technology, including the areas of physics, chemistry, biology, medicine, materials, energy/environment, information technology, detection science, healthcare and drug discovery, and electronics.