Coupling of PET waste electroreforming with green hydrogen generation using bifunctional catalyst
Cost-effective and high-efficiency bifunctional electrocatalysts for electrooxidation of polyethylene terephthalate (PET) waste and green hydrogen generation are very crucial for practical implementation yet rarely reported. Herein, a bifunctional catalyst of cobalt modified nickel phosphide nanoshe...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/164650 |
| _version_ | 1826111789167804416 |
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| author | Li, Ying Lee, Li Quan Yu, Zhi Gen Zhao, Hu Zhang, Yong-Wei Gao, Pingqi Li, Hong |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Li, Ying Lee, Li Quan Yu, Zhi Gen Zhao, Hu Zhang, Yong-Wei Gao, Pingqi Li, Hong |
| author_sort | Li, Ying |
| collection | NTU |
| description | Cost-effective and high-efficiency bifunctional electrocatalysts for electrooxidation of polyethylene terephthalate (PET) waste and green hydrogen generation are very crucial for practical implementation yet rarely reported. Herein, a bifunctional catalyst of cobalt modified nickel phosphide nanosheet arrays on nickel foam (Co-Ni2P/NF) for both PET hydrolysate oxidation reaction and hydrogen evolution reaction (HER) is reported, which is obtained by a facile hydrothermal and phosphidation treatment. The electrocatalyst is highly active for both PET hydrolysate oxidation reaction and HER with low overpotentials of 90 and 148 mV, respectively, to achieve a current density of 50 mA cm−2. By coupling PET hydrolysate oxidation reaction with HER, the assembled electrolyzer with Co-Ni2P/NF as a bifunctional catalyst only requires 1.43 V to afford 10 mA cm−2, much lower than that needed for pure water splitting (1.55 V). Complementary DFT study provides an in-depth understanding of HER and electrooxidation of PET on Co-Ni2P/NF. Our work suggests that electroreforming of abundant PET waste could be an energy-efficient and sustainable strategy for both plastic waste valorization and green hydrogen production via using a cost-effective and active bifunctional catalyst. |
| first_indexed | 2024-10-01T02:56:35Z |
| format | Journal Article |
| id | ntu-10356/164650 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:56:35Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1646502023-02-07T07:06:48Z Coupling of PET waste electroreforming with green hydrogen generation using bifunctional catalyst Li, Ying Lee, Li Quan Yu, Zhi Gen Zhao, Hu Zhang, Yong-Wei Gao, Pingqi Li, Hong School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Bifunctional Catalysts Bifunctional Electrocatalysts Cost-effective and high-efficiency bifunctional electrocatalysts for electrooxidation of polyethylene terephthalate (PET) waste and green hydrogen generation are very crucial for practical implementation yet rarely reported. Herein, a bifunctional catalyst of cobalt modified nickel phosphide nanosheet arrays on nickel foam (Co-Ni2P/NF) for both PET hydrolysate oxidation reaction and hydrogen evolution reaction (HER) is reported, which is obtained by a facile hydrothermal and phosphidation treatment. The electrocatalyst is highly active for both PET hydrolysate oxidation reaction and HER with low overpotentials of 90 and 148 mV, respectively, to achieve a current density of 50 mA cm−2. By coupling PET hydrolysate oxidation reaction with HER, the assembled electrolyzer with Co-Ni2P/NF as a bifunctional catalyst only requires 1.43 V to afford 10 mA cm−2, much lower than that needed for pure water splitting (1.55 V). Complementary DFT study provides an in-depth understanding of HER and electrooxidation of PET on Co-Ni2P/NF. Our work suggests that electroreforming of abundant PET waste could be an energy-efficient and sustainable strategy for both plastic waste valorization and green hydrogen production via using a cost-effective and active bifunctional catalyst. Nanyang Technological University Published version This work was supported by the Nanyang Technological University (Grant no. NTU-ACE2021-02) and Natural Science Foundation for Distinguished Young Scholars of Guangdong Province (Grant no. 2019B151502053), and Chinese Scholarship Council is acknowledged for providing financial support to Ying Li as a Visiting PhD Student at the Nanyang Technological University. 2023-02-07T07:06:48Z 2023-02-07T07:06:48Z 2022 Journal Article Li, Y., Lee, L. Q., Yu, Z. G., Zhao, H., Zhang, Y., Gao, P. & Li, H. (2022). Coupling of PET waste electroreforming with green hydrogen generation using bifunctional catalyst. Sustainable Energy and Fuels, 6(21), 4916-4924. https://dx.doi.org/10.1039/d2se01007k 2398-4902 https://hdl.handle.net/10356/164650 10.1039/d2se01007k 2-s2.0-85140475366 21 6 4916 4924 en NTU-ACE2021-02 Sustainable Energy and Fuels © The Royal Society of Chemistry 2022. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. application/pdf |
| spellingShingle | Engineering::Mechanical engineering Bifunctional Catalysts Bifunctional Electrocatalysts Li, Ying Lee, Li Quan Yu, Zhi Gen Zhao, Hu Zhang, Yong-Wei Gao, Pingqi Li, Hong Coupling of PET waste electroreforming with green hydrogen generation using bifunctional catalyst |
| title | Coupling of PET waste electroreforming with green hydrogen generation using bifunctional catalyst |
| title_full | Coupling of PET waste electroreforming with green hydrogen generation using bifunctional catalyst |
| title_fullStr | Coupling of PET waste electroreforming with green hydrogen generation using bifunctional catalyst |
| title_full_unstemmed | Coupling of PET waste electroreforming with green hydrogen generation using bifunctional catalyst |
| title_short | Coupling of PET waste electroreforming with green hydrogen generation using bifunctional catalyst |
| title_sort | coupling of pet waste electroreforming with green hydrogen generation using bifunctional catalyst |
| topic | Engineering::Mechanical engineering Bifunctional Catalysts Bifunctional Electrocatalysts |
| url | https://hdl.handle.net/10356/164650 |
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