| Autor: |
Xiaoli, Zhou, Liyao, Zhu, Yue, Yang, Lijie, Xu, Xiujuan, Qian, Jie, Zhou, Weiliang, Dong, Min, Jiang |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Chemosphere. 300:134552 |
| ISSN: |
0045-6535 |
| DOI: |
10.1016/j.chemosphere.2022.134552 |
| Popis: |
Confronted with the environmental pollution and energy crisis issues, upcycling of waste plastics for energy-storage applications has attracted broad interest. Polyurethane (PUR) is a potential candidate for the preparation of N-doped carbon materials. However, its low carbon yield limits the utilization of PUR waste. In this study, PUR foam was converted into N-doped hierarchical porous carbon (NHPC) through an autogenic atmosphere pyrolysis (AAP)-KOH activation approach. An ultra-high carbon yield of 55.0% was achieved through AAP, which is more than 17 times the carbon yield of conventional pyrolysis of PUR. AAP converted 83.2% of C and 61.0% of N in PUR into derived carbon material. The high conversion rate and self-doping effect can increase the environmental and economic benefits of this approach. KOH activation significantly increased the specific surface area of carbon materials to 2057 m |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect