Highly active Ni-promoted mesostructured silica nanoparticles for CO2 methanation
Mesostructured silica nanoparticles (MSN) and Ni loaded onto MSN (Ni/MSN) for the methanation of CO2 were prepared by the sol–gel and impregnation methods. Catalytic testing was conducted in the temperature range of 423–723 K under atmospheric pressure in the presence of H2. Ni supported on MSN was...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/37863/1/Highly%20active%20Ni-promoted%20mesostructured%20silica%20nanoparticles%20for%20CO2%20methanation.pdf |
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| author | Ab Aziz, Muhammad Arif Abdul Jalil, Aishah Triwahyono, Sugeng Mukti, Rino Rakhmata Yap, Taufiq Yun Hin Sazegar, Mohammad Reza |
| author_facet | Ab Aziz, Muhammad Arif Abdul Jalil, Aishah Triwahyono, Sugeng Mukti, Rino Rakhmata Yap, Taufiq Yun Hin Sazegar, Mohammad Reza |
| author_sort | Ab Aziz, Muhammad Arif |
| collection | UPM |
| description | Mesostructured silica nanoparticles (MSN) and Ni loaded onto MSN (Ni/MSN) for the methanation of CO2 were prepared by the sol–gel and impregnation methods. Catalytic testing was conducted in the temperature range of 423–723 K under atmospheric pressure in the presence of H2. Ni supported on MSN was compared with others types of support such as MCM-41 (Mobile Crystalline Material), HY (protonated Y zeolite), SiO2 and γ-Al2O3. The activity of CO2 methanation followed the order: Ni/MSN > Ni/MCM-41 > Ni/HY > Ni/SiO2 > Ni/γ-Al2O3. The nitrogen physisorption and pyrrole adsorbed IR spectroscopy results indicated that the high activity of Ni/MSN is due to the presence of both intra- and inter-particle porosity which led to the high concentration of basic sites. In addition, the correlation between N–H band intensity and the turnover frequency revealed that the methanation activity increased with increasing of the concentration of basic sites. The presence of defect sites or oxygen vacancies in MSN was responsible for the formation of surface carbon species, while Ni sites dissociated hydrogen to form atomic hydrogen. The surface carbon species then interacted with atomic hydrogen to form methane. The Ni/MSN catalyst performed with good stability and no deactivation up to 200 h. |
| first_indexed | 2024-03-06T08:39:36Z |
| format | Article |
| id | upm.eprints-37863 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:39:36Z |
| publishDate | 2014 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-378632016-11-28T01:43:29Z http://psasir.upm.edu.my/id/eprint/37863/ Highly active Ni-promoted mesostructured silica nanoparticles for CO2 methanation Ab Aziz, Muhammad Arif Abdul Jalil, Aishah Triwahyono, Sugeng Mukti, Rino Rakhmata Yap, Taufiq Yun Hin Sazegar, Mohammad Reza Mesostructured silica nanoparticles (MSN) and Ni loaded onto MSN (Ni/MSN) for the methanation of CO2 were prepared by the sol–gel and impregnation methods. Catalytic testing was conducted in the temperature range of 423–723 K under atmospheric pressure in the presence of H2. Ni supported on MSN was compared with others types of support such as MCM-41 (Mobile Crystalline Material), HY (protonated Y zeolite), SiO2 and γ-Al2O3. The activity of CO2 methanation followed the order: Ni/MSN > Ni/MCM-41 > Ni/HY > Ni/SiO2 > Ni/γ-Al2O3. The nitrogen physisorption and pyrrole adsorbed IR spectroscopy results indicated that the high activity of Ni/MSN is due to the presence of both intra- and inter-particle porosity which led to the high concentration of basic sites. In addition, the correlation between N–H band intensity and the turnover frequency revealed that the methanation activity increased with increasing of the concentration of basic sites. The presence of defect sites or oxygen vacancies in MSN was responsible for the formation of surface carbon species, while Ni sites dissociated hydrogen to form atomic hydrogen. The surface carbon species then interacted with atomic hydrogen to form methane. The Ni/MSN catalyst performed with good stability and no deactivation up to 200 h. Elsevier 2014-04 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37863/1/Highly%20active%20Ni-promoted%20mesostructured%20silica%20nanoparticles%20for%20CO2%20methanation.pdf Ab Aziz, Muhammad Arif and Abdul Jalil, Aishah and Triwahyono, Sugeng and Mukti, Rino Rakhmata and Yap, Taufiq Yun Hin and Sazegar, Mohammad Reza (2014) Highly active Ni-promoted mesostructured silica nanoparticles for CO2 methanation. Applied Catalysis B: Environmental, 147. pp. 359-368. ISSN 0926-3373; ESSN: 1873-3883 http://www.sciencedirect.com/science/article/pii/S0926337313005808 10.1016/j.apcatb.2013.09.015 |
| spellingShingle | Ab Aziz, Muhammad Arif Abdul Jalil, Aishah Triwahyono, Sugeng Mukti, Rino Rakhmata Yap, Taufiq Yun Hin Sazegar, Mohammad Reza Highly active Ni-promoted mesostructured silica nanoparticles for CO2 methanation |
| title | Highly active Ni-promoted mesostructured silica nanoparticles for CO2 methanation |
| title_full | Highly active Ni-promoted mesostructured silica nanoparticles for CO2 methanation |
| title_fullStr | Highly active Ni-promoted mesostructured silica nanoparticles for CO2 methanation |
| title_full_unstemmed | Highly active Ni-promoted mesostructured silica nanoparticles for CO2 methanation |
| title_short | Highly active Ni-promoted mesostructured silica nanoparticles for CO2 methanation |
| title_sort | highly active ni promoted mesostructured silica nanoparticles for co2 methanation |
| url | http://psasir.upm.edu.my/id/eprint/37863/1/Highly%20active%20Ni-promoted%20mesostructured%20silica%20nanoparticles%20for%20CO2%20methanation.pdf |
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