Upcycling of Polyethylene Wastes to Valuable Chemicals over Group VIII Metal‐decorated WO3 Nanosheets
Abstract Catalytic cracking of polyolefin wastes into valuable chemicals at mild conditions using non‐noble metal catalysts is highly attractive yet challenging. Herein it is reported that 2D tungsten trioxide (2D WO3) nanosheets, after decorating with group VIII metal promoters (i.e., Fe, Co, or Ni...
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202410574 |
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| author | Qimin Zhou Weiqiang Gao Deliang Wang Yinlong Chang Hanxi Guan Khak Ho Lim Xuan Yang Pingwei Liu Wen‐Jun Wang Bo‐Geng Li Qingyue Wang |
| author_facet | Qimin Zhou Weiqiang Gao Deliang Wang Yinlong Chang Hanxi Guan Khak Ho Lim Xuan Yang Pingwei Liu Wen‐Jun Wang Bo‐Geng Li Qingyue Wang |
| author_sort | Qimin Zhou |
| collection | DOAJ |
| description | Abstract Catalytic cracking of polyolefin wastes into valuable chemicals at mild conditions using non‐noble metal catalysts is highly attractive yet challenging. Herein it is reported that 2D tungsten trioxide (2D WO3) nanosheets, after decorating with group VIII metal promoters (i.e., Fe, Co, or Ni), convert high‐density polyethylene (HDPE) into alkylaromatics and olefins at low temperature and ambient pressure without using any solvent or hydrogen: 2D Ni/WO3 with abundant Brønsted acidic sites initiates HDPE cracking at a low temperature of 240 °C; 2D Fe/WO3 with low energy barrier of cyclization achieves a high HDPE conversion to 84.2% liquid hydrocarbons with a selectivity of 30.9% to aromatics at 300 °C. In‐situ spectroscopic investigations and supplementary theoretical calculations illustrate that these aromatics are formed through the cyclization of alkene intermediates. These 2D catalysts also display high efficiency in the low‐temperature cracking of single‐use commercial polyethylene wastes such as packaging bags and bottles. This work has demonstrated the high potential of 2D non‐noble metal catalysts in the efficient upcycling of waste polyolefin at mild conditions. |
| format | Article |
| id | doaj-art-958122362dae41238c23d507fedfdb88 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-958122362dae41238c23d507fedfdb882025-01-29T09:50:19ZengWileyAdvanced Science2198-38442025-01-01124n/an/a10.1002/advs.202410574Upcycling of Polyethylene Wastes to Valuable Chemicals over Group VIII Metal‐decorated WO3 NanosheetsQimin Zhou0Weiqiang Gao1Deliang Wang2Yinlong Chang3Hanxi Guan4Khak Ho Lim5Xuan Yang6Pingwei Liu7Wen‐Jun Wang8Bo‐Geng Li9Qingyue Wang10College of Chemical and Biological Engineering Zhejiang University 866 Yuhangtang Rd Hangzhou Zhejiang 310058 P. R. ChinaCollege of Chemical and Biological Engineering Zhejiang University 866 Yuhangtang Rd Hangzhou Zhejiang 310058 P. R. ChinaCollege of Chemical and Biological Engineering Zhejiang University 866 Yuhangtang Rd Hangzhou Zhejiang 310058 P. R. ChinaCollege of Chemical and Biological Engineering Zhejiang University 866 Yuhangtang Rd Hangzhou Zhejiang 310058 P. R. ChinaCollege of Chemical and Biological Engineering Zhejiang University 866 Yuhangtang Rd Hangzhou Zhejiang 310058 P. R. ChinaCollege of Chemical and Biological Engineering Zhejiang University 866 Yuhangtang Rd Hangzhou Zhejiang 310058 P. R. ChinaCollege of Chemical and Biological Engineering Zhejiang University 866 Yuhangtang Rd Hangzhou Zhejiang 310058 P. R. ChinaCollege of Chemical and Biological Engineering Zhejiang University 866 Yuhangtang Rd Hangzhou Zhejiang 310058 P. R. ChinaCollege of Chemical and Biological Engineering Zhejiang University 866 Yuhangtang Rd Hangzhou Zhejiang 310058 P. R. ChinaCollege of Chemical and Biological Engineering Zhejiang University 866 Yuhangtang Rd Hangzhou Zhejiang 310058 P. R. ChinaCollege of Chemical and Biological Engineering Zhejiang University 866 Yuhangtang Rd Hangzhou Zhejiang 310058 P. R. ChinaAbstract Catalytic cracking of polyolefin wastes into valuable chemicals at mild conditions using non‐noble metal catalysts is highly attractive yet challenging. Herein it is reported that 2D tungsten trioxide (2D WO3) nanosheets, after decorating with group VIII metal promoters (i.e., Fe, Co, or Ni), convert high‐density polyethylene (HDPE) into alkylaromatics and olefins at low temperature and ambient pressure without using any solvent or hydrogen: 2D Ni/WO3 with abundant Brønsted acidic sites initiates HDPE cracking at a low temperature of 240 °C; 2D Fe/WO3 with low energy barrier of cyclization achieves a high HDPE conversion to 84.2% liquid hydrocarbons with a selectivity of 30.9% to aromatics at 300 °C. In‐situ spectroscopic investigations and supplementary theoretical calculations illustrate that these aromatics are formed through the cyclization of alkene intermediates. These 2D catalysts also display high efficiency in the low‐temperature cracking of single‐use commercial polyethylene wastes such as packaging bags and bottles. This work has demonstrated the high potential of 2D non‐noble metal catalysts in the efficient upcycling of waste polyolefin at mild conditions.https://doi.org/10.1002/advs.202410574dehydrogenative aromatizationgroup VIII metal catalystsin‐situ spectroscopic investigation polyethylene upcyclingWO3 nanosheets |
| spellingShingle | Qimin Zhou Weiqiang Gao Deliang Wang Yinlong Chang Hanxi Guan Khak Ho Lim Xuan Yang Pingwei Liu Wen‐Jun Wang Bo‐Geng Li Qingyue Wang Upcycling of Polyethylene Wastes to Valuable Chemicals over Group VIII Metal‐decorated WO3 Nanosheets Advanced Science dehydrogenative aromatization group VIII metal catalysts in‐situ spectroscopic investigation polyethylene upcycling WO3 nanosheets |
| title | Upcycling of Polyethylene Wastes to Valuable Chemicals over Group VIII Metal‐decorated WO3 Nanosheets |
| title_full | Upcycling of Polyethylene Wastes to Valuable Chemicals over Group VIII Metal‐decorated WO3 Nanosheets |
| title_fullStr | Upcycling of Polyethylene Wastes to Valuable Chemicals over Group VIII Metal‐decorated WO3 Nanosheets |
| title_full_unstemmed | Upcycling of Polyethylene Wastes to Valuable Chemicals over Group VIII Metal‐decorated WO3 Nanosheets |
| title_short | Upcycling of Polyethylene Wastes to Valuable Chemicals over Group VIII Metal‐decorated WO3 Nanosheets |
| title_sort | upcycling of polyethylene wastes to valuable chemicals over group viii metal decorated wo3 nanosheets |
| topic | dehydrogenative aromatization group VIII metal catalysts in‐situ spectroscopic investigation polyethylene upcycling WO3 nanosheets |
| url | https://doi.org/10.1002/advs.202410574 |
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