Coke-resistant Y2O3-promoted cobalt supported on mesoporous alumina for enhanced hydrogen production
In this work, the δ%Y–10%Co/MA (δ = 0, 1, 2, 3, and 5 wt%) catalysts synthesised by sequential incipient wetness impregnation were characterised and evaluated in CH4 dry reforming. Superior catalytic performances were shown by 3 wt% Y2O3 loading (CH4 conversion = 85.8%, and CO2 conversion = 90.5%),...
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| Format: | Article |
| Language: | English |
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Elsevier Ltd.
2021
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| Online Access: | http://umpir.ump.edu.my/id/eprint/33850/ http://umpir.ump.edu.my/id/eprint/33850/1/Coke-resistant%20Y2O3-promoted%20cobalt.pdf |
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| author | Mahadi, Bahari Setiabudi, H. D. Nishino, Tomomichi Ayas, Nezihe Vo, Dai-Viet N. |
| author_facet | Mahadi, Bahari Setiabudi, H. D. Nishino, Tomomichi Ayas, Nezihe Vo, Dai-Viet N. |
| author_sort | Mahadi, Bahari |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | In this work, the δ%Y–10%Co/MA (δ = 0, 1, 2, 3, and 5 wt%) catalysts synthesised by sequential incipient wetness impregnation were characterised and evaluated in CH4 dry reforming. Superior catalytic performances were shown by 3 wt% Y2O3 loading (CH4 conversion = 85.8%, and CO2 conversion = 90.5%), followed by 2 wt% > 5 wt% > 1 wt% > 0 wt% Y2O3 loading. This result was attributed to the favorable catalytic properties of 3 wt%Y–10%Co/MA including small Co particle size, high Co dispersion, high amount of atomic ratio (Co/Al), and high number of lattice oxygen vacancies. The excess Y2O3 addition (>3 wt%) led to inevitably blocked Co active sites and resulted in decreasing catalytic performance. The 3 wt% Y2O3 promoter loading recorded the lowest carbon deposited (7.0%) due to the highest oxygen vacancies (78.1%) compared to 1, 2 and 5 wt% Y2O3. |
| first_indexed | 2025-11-15T03:11:48Z |
| format | Article |
| id | ump-33850 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:11:48Z |
| publishDate | 2021 |
| publisher | Elsevier Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-338502022-04-22T04:01:21Z http://umpir.ump.edu.my/id/eprint/33850/ Coke-resistant Y2O3-promoted cobalt supported on mesoporous alumina for enhanced hydrogen production Mahadi, Bahari Setiabudi, H. D. Nishino, Tomomichi Ayas, Nezihe Vo, Dai-Viet N. TP Chemical technology In this work, the δ%Y–10%Co/MA (δ = 0, 1, 2, 3, and 5 wt%) catalysts synthesised by sequential incipient wetness impregnation were characterised and evaluated in CH4 dry reforming. Superior catalytic performances were shown by 3 wt% Y2O3 loading (CH4 conversion = 85.8%, and CO2 conversion = 90.5%), followed by 2 wt% > 5 wt% > 1 wt% > 0 wt% Y2O3 loading. This result was attributed to the favorable catalytic properties of 3 wt%Y–10%Co/MA including small Co particle size, high Co dispersion, high amount of atomic ratio (Co/Al), and high number of lattice oxygen vacancies. The excess Y2O3 addition (>3 wt%) led to inevitably blocked Co active sites and resulted in decreasing catalytic performance. The 3 wt% Y2O3 promoter loading recorded the lowest carbon deposited (7.0%) due to the highest oxygen vacancies (78.1%) compared to 1, 2 and 5 wt% Y2O3. Elsevier Ltd. 2021 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/33850/1/Coke-resistant%20Y2O3-promoted%20cobalt.pdf Mahadi, Bahari and Setiabudi, H. D. and Nishino, Tomomichi and Ayas, Nezihe and Vo, Dai-Viet N. (2021) Coke-resistant Y2O3-promoted cobalt supported on mesoporous alumina for enhanced hydrogen production. Journal of the Energy Institute, 94. pp. 272-284. ISSN 1743-9671. (Published) https://doi.org/10.1016/j.joei.2020.09.011 https://doi.org/10.1016/j.joei.2020.09.011 |
| spellingShingle | TP Chemical technology Mahadi, Bahari Setiabudi, H. D. Nishino, Tomomichi Ayas, Nezihe Vo, Dai-Viet N. Coke-resistant Y2O3-promoted cobalt supported on mesoporous alumina for enhanced hydrogen production |
| title | Coke-resistant Y2O3-promoted cobalt supported on mesoporous alumina for enhanced hydrogen production |
| title_full | Coke-resistant Y2O3-promoted cobalt supported on mesoporous alumina for enhanced hydrogen production |
| title_fullStr | Coke-resistant Y2O3-promoted cobalt supported on mesoporous alumina for enhanced hydrogen production |
| title_full_unstemmed | Coke-resistant Y2O3-promoted cobalt supported on mesoporous alumina for enhanced hydrogen production |
| title_short | Coke-resistant Y2O3-promoted cobalt supported on mesoporous alumina for enhanced hydrogen production |
| title_sort | coke-resistant y2o3-promoted cobalt supported on mesoporous alumina for enhanced hydrogen production |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/33850/ http://umpir.ump.edu.my/id/eprint/33850/ http://umpir.ump.edu.my/id/eprint/33850/ http://umpir.ump.edu.my/id/eprint/33850/1/Coke-resistant%20Y2O3-promoted%20cobalt.pdf |