High performance Ni catalysts prepared by freeze drying for efficient dry reforming of methane
For supported metal catalysts, the architectures of the supports are as important as the chemical compositions of the catalysts and the morphologies of the supported metal particles. In this work, we report a simple and versatile method for preparing Ni nanoparticle catalysts supported on Mg-Al mixe...
| Main Authors: | , , , , |
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| Drugi avtorji: | |
| Format: | Journal Article |
| Jezik: | English |
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2020
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| Online dostop: | https://hdl.handle.net/10356/143435 |
| _version_ | 1826121798993838080 |
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| author | Huang, Jijiang Yan, Yong Syed Saqline Liu, Wen Liu, Bin |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Huang, Jijiang Yan, Yong Syed Saqline Liu, Wen Liu, Bin |
| author_sort | Huang, Jijiang |
| collection | NTU |
| description | For supported metal catalysts, the architectures of the supports are as important as the chemical compositions of the catalysts and the morphologies of the supported metal particles. In this work, we report a simple and versatile method for preparing Ni nanoparticle catalysts supported on Mg-Al mixed oxides for the dry reforming of methane. The catalysts were prepared by freeze drying of Ni-Mg-Al layered double hydroxide precursors, followed by calcination and H2 reduction. Compared to Ni/Mg-Al-O catalysts prepared by oven drying, the freeze-dried catalysts retain a unique, loosely packed platelet structure with high macroporosity, which gives rise to high dispersion, high DRM activity and high resistance against deactivation. At 800 °C, the catalyst consistently achieves equilibrium CH4 conversion of 95% over 100 h time on stream with a of 40 L-CH4 h−1 g-cat−1. The DRM activity seen in the present study supersedes other Ni-based catalysts reported in the literature. |
| first_indexed | 2024-10-01T05:38:24Z |
| format | Journal Article |
| id | ntu-10356/143435 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:38:24Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1434352023-12-29T06:49:33Z High performance Ni catalysts prepared by freeze drying for efficient dry reforming of methane Huang, Jijiang Yan, Yong Syed Saqline Liu, Wen Liu, Bin School of Chemical and Biomedical Engineering Engineering::Chemical engineering Methane Dry Reforming Layered Double Hydroxides For supported metal catalysts, the architectures of the supports are as important as the chemical compositions of the catalysts and the morphologies of the supported metal particles. In this work, we report a simple and versatile method for preparing Ni nanoparticle catalysts supported on Mg-Al mixed oxides for the dry reforming of methane. The catalysts were prepared by freeze drying of Ni-Mg-Al layered double hydroxide precursors, followed by calcination and H2 reduction. Compared to Ni/Mg-Al-O catalysts prepared by oven drying, the freeze-dried catalysts retain a unique, loosely packed platelet structure with high macroporosity, which gives rise to high dispersion, high DRM activity and high resistance against deactivation. At 800 °C, the catalyst consistently achieves equilibrium CH4 conversion of 95% over 100 h time on stream with a of 40 L-CH4 h−1 g-cat−1. The DRM activity seen in the present study supersedes other Ni-based catalysts reported in the literature. National Research Foundation (NRF) Accepted version This work is funded by the National Research Foundation (NRF), Prime Minister’s Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme. 2020-09-01T07:29:33Z 2020-09-01T07:29:33Z 2020 Journal Article Huang, J., Yan, Y., Syed Saqline, Liu, W., & Liu, B. (2020). High performance Ni catalysts prepared by freeze drying for efficient dry reforming of methane. Applied Catalysis B: Environmental, 275, 119109-. doi:10.1016/j.apcatb.2020.119109 0926-3373 https://hdl.handle.net/10356/143435 10.1016/j.apcatb.2020.119109 2-s2.0-85085504349 275 119109 en Cambridge CREATE C4T Applied Catalysis B: Environmental © 2020 Elsevier B.V. All rights reserved. This paper was published in Applied Catalysis B: Environmental and is made available with permission of Elsevier B.V. application/pdf |
| spellingShingle | Engineering::Chemical engineering Methane Dry Reforming Layered Double Hydroxides Huang, Jijiang Yan, Yong Syed Saqline Liu, Wen Liu, Bin High performance Ni catalysts prepared by freeze drying for efficient dry reforming of methane |
| title | High performance Ni catalysts prepared by freeze drying for efficient dry reforming of methane |
| title_full | High performance Ni catalysts prepared by freeze drying for efficient dry reforming of methane |
| title_fullStr | High performance Ni catalysts prepared by freeze drying for efficient dry reforming of methane |
| title_full_unstemmed | High performance Ni catalysts prepared by freeze drying for efficient dry reforming of methane |
| title_short | High performance Ni catalysts prepared by freeze drying for efficient dry reforming of methane |
| title_sort | high performance ni catalysts prepared by freeze drying for efficient dry reforming of methane |
| topic | Engineering::Chemical engineering Methane Dry Reforming Layered Double Hydroxides |
| url | https://hdl.handle.net/10356/143435 |
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