Comparative study of Ni-Ce loading method: Beneficial effect of ultrasonic-assisted impregnation method in CO2 reforming of CH4 over Ni-Ce/SBA-15
A series of Ni-Ce/SBA-15 catalysts with 6 wt% Ce and 5 wt% Ni were synthesized using conventional impregnation (Ni-Ce/SBA-15(C-IM)), ultrasonic-assisted impregnation (Ni-Ce/SBA-15(US-IM)) and reflux-assisted impregnation (Ni-Ce/SBA-15(R-IM)) methods The samples were characterized using XRD, TEM, S...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier Ltd
2018
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| Online Access: | http://umpir.ump.edu.my/id/eprint/20331/1/Comparative%20study%20of%20Ni-Ce%20loading1.pdf |
| _version_ | 1796992552483684352 |
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| author | Setiabudi, H. D. Chong, Chi Cheng Abed, S. M. Teh, L. P. Chin, S. Y. |
| author_facet | Setiabudi, H. D. Chong, Chi Cheng Abed, S. M. Teh, L. P. Chin, S. Y. |
| author_sort | Setiabudi, H. D. |
| collection | UMP |
| description | A series of Ni-Ce/SBA-15 catalysts with 6 wt% Ce and 5 wt% Ni were synthesized using conventional impregnation (Ni-Ce/SBA-15(C-IM)), ultrasonic-assisted impregnation (Ni-Ce/SBA-15(US-IM)) and reflux-assisted impregnation (Ni-Ce/SBA-15(R-IM)) methods The samples were characterized using XRD, TEM, SEM, BET, FTIR, H2-TPR, XPS and TGA. The characterization results showed that Ni-Ce loading methods greatly influence the properties of Ni-Ce/SBA-15 whereby the homogeneity of metal dispersion and strength of metal-support interaction followed the order of Ni-Ce/SBA-15(C-IM) < Ni-Ce/SBA-15(R-IM) < Ni-Ce/SBA-15(US-IM). The smaller metal particle size and higher metal dispersion in Ni-Ce/SBA-15(US-IM) have led to the stronger metal-support interaction and further decreased the surface area and porosity of the catalyst. The activity and stability of catalysts followed the order of Ni-Ce/SBA-15(C-IM) < Ni-Ce/SBA-15(R-IM) < Ni-Ce/SBA-15(US-IM), with the conversion of CH4 and CO2 over Ni-Ce/SBA-15(US-IM) was about 96.3% and 93.5%, respectively, and H2/CO ratio of 1.02 at reaction temperature of 800 °C and almost remained constant during 48 h of reaction. The superior catalytic performance of Ni-Ce/SBA-15(US-IM) probably was related with the smaller metal particles, stronger metal-support interaction and more homogenous metal dispersion, which altered the properties of catalyst towards an excellent catalytic performance. The characterization of spent catalysts showed the lowest carbon formation in Ni-Ce/SBA-15(US-IM) catalyst, demonstrating the positive role of ultrasonic effect on alteration of catalyst properties towards carbon resistance. This study provides new perspective on the preparation of Ni-Ce/SBA-15 towards an excellent performance of CO2 reforming of CH4. |
| first_indexed | 2024-03-06T12:21:41Z |
| format | Article |
| id | UMPir20331 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:21:41Z |
| publishDate | 2018 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | UMPir203312019-01-28T02:02:35Z http://umpir.ump.edu.my/id/eprint/20331/ Comparative study of Ni-Ce loading method: Beneficial effect of ultrasonic-assisted impregnation method in CO2 reforming of CH4 over Ni-Ce/SBA-15 Setiabudi, H. D. Chong, Chi Cheng Abed, S. M. Teh, L. P. Chin, S. Y. TP Chemical technology A series of Ni-Ce/SBA-15 catalysts with 6 wt% Ce and 5 wt% Ni were synthesized using conventional impregnation (Ni-Ce/SBA-15(C-IM)), ultrasonic-assisted impregnation (Ni-Ce/SBA-15(US-IM)) and reflux-assisted impregnation (Ni-Ce/SBA-15(R-IM)) methods The samples were characterized using XRD, TEM, SEM, BET, FTIR, H2-TPR, XPS and TGA. The characterization results showed that Ni-Ce loading methods greatly influence the properties of Ni-Ce/SBA-15 whereby the homogeneity of metal dispersion and strength of metal-support interaction followed the order of Ni-Ce/SBA-15(C-IM) < Ni-Ce/SBA-15(R-IM) < Ni-Ce/SBA-15(US-IM). The smaller metal particle size and higher metal dispersion in Ni-Ce/SBA-15(US-IM) have led to the stronger metal-support interaction and further decreased the surface area and porosity of the catalyst. The activity and stability of catalysts followed the order of Ni-Ce/SBA-15(C-IM) < Ni-Ce/SBA-15(R-IM) < Ni-Ce/SBA-15(US-IM), with the conversion of CH4 and CO2 over Ni-Ce/SBA-15(US-IM) was about 96.3% and 93.5%, respectively, and H2/CO ratio of 1.02 at reaction temperature of 800 °C and almost remained constant during 48 h of reaction. The superior catalytic performance of Ni-Ce/SBA-15(US-IM) probably was related with the smaller metal particles, stronger metal-support interaction and more homogenous metal dispersion, which altered the properties of catalyst towards an excellent catalytic performance. The characterization of spent catalysts showed the lowest carbon formation in Ni-Ce/SBA-15(US-IM) catalyst, demonstrating the positive role of ultrasonic effect on alteration of catalyst properties towards carbon resistance. This study provides new perspective on the preparation of Ni-Ce/SBA-15 towards an excellent performance of CO2 reforming of CH4. Elsevier Ltd 2018-02 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/20331/1/Comparative%20study%20of%20Ni-Ce%20loading1.pdf Setiabudi, H. D. and Chong, Chi Cheng and Abed, S. M. and Teh, L. P. and Chin, S. Y. (2018) Comparative study of Ni-Ce loading method: Beneficial effect of ultrasonic-assisted impregnation method in CO2 reforming of CH4 over Ni-Ce/SBA-15. Journal of Environmental Chemical Engineering, 6 (1). pp. 745-753. ISSN 2213-3437. (Published) https://doi.org/10.1016/j.jece.2018.01.001 10.1016/j.jece.2018.01.001 |
| spellingShingle | TP Chemical technology Setiabudi, H. D. Chong, Chi Cheng Abed, S. M. Teh, L. P. Chin, S. Y. Comparative study of Ni-Ce loading method: Beneficial effect of ultrasonic-assisted impregnation method in CO2 reforming of CH4 over Ni-Ce/SBA-15 |
| title | Comparative study of Ni-Ce loading method: Beneficial effect of ultrasonic-assisted impregnation method in CO2 reforming of CH4 over Ni-Ce/SBA-15 |
| title_full | Comparative study of Ni-Ce loading method: Beneficial effect of ultrasonic-assisted impregnation method in CO2 reforming of CH4 over Ni-Ce/SBA-15 |
| title_fullStr | Comparative study of Ni-Ce loading method: Beneficial effect of ultrasonic-assisted impregnation method in CO2 reforming of CH4 over Ni-Ce/SBA-15 |
| title_full_unstemmed | Comparative study of Ni-Ce loading method: Beneficial effect of ultrasonic-assisted impregnation method in CO2 reforming of CH4 over Ni-Ce/SBA-15 |
| title_short | Comparative study of Ni-Ce loading method: Beneficial effect of ultrasonic-assisted impregnation method in CO2 reforming of CH4 over Ni-Ce/SBA-15 |
| title_sort | comparative study of ni ce loading method beneficial effect of ultrasonic assisted impregnation method in co2 reforming of ch4 over ni ce sba 15 |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/20331/1/Comparative%20study%20of%20Ni-Ce%20loading1.pdf |
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