Characterization of La-promoted Ni/Al2 O3 catalysts for hydrogen production from glycerol dry reforming
In the current paper, dry (CO2)-reforming of glycerol, a new reforming route, was carried out over alumina (Al2O3)-supported, non-promoted and lanthanum-promoted nickel (Ni) catalysts. Both sets of catalysts were synthesized via a wet co-impregnation procedure. Physicochemical characterization of th...
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| Language: | English |
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Elsevier
2014
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| Online Access: | http://umpir.ump.edu.my/id/eprint/25422/ http://umpir.ump.edu.my/id/eprint/25422/1/Characterization%20of%20La-promoted%20NiAl2O31.pdf |
| _version_ | 1848822276718329856 |
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| author | Siew, Kah Weng Lee, Hua Chyn Jolius, Gimbun Cheng, C. K. |
| author_facet | Siew, Kah Weng Lee, Hua Chyn Jolius, Gimbun Cheng, C. K. |
| author_sort | Siew, Kah Weng |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | In the current paper, dry (CO2)-reforming of glycerol, a new reforming route, was carried out over alumina (Al2O3)-supported, non-promoted and lanthanum-promoted nickel (Ni) catalysts. Both sets of catalysts were synthesized via a wet co-impregnation procedure. Physicochemical characterization of the catalysts showed that the promoted catalyst possessed smaller metal crystallite size, hence higher metal dispersion compared to the virgin Ni/Al2O3 catalyst. This was also corroborated by the surface images captured by the FESEM analysis. From temperature-programmed calcination analysis, the derivative weight profiles revealed two peaks, which represent a water elimination peak at a temperature range of 373 to 473 K followed by nickel nitrate decomposition from 473 to 573 K. In addition, BET surface area measurements gave 85.0 m2·g−1 for the non-promoted Ni catalyst, whilst the promoted catalysts showed an average of 1% to 6% improvement depending on the La loadings. Significantly, reaction studies at 873 K showed that glycerol dry reforming successfully produced H2. The 2%La-Ni/Al2O3 catalyst, which possessed the largest BET surface area, gave an optimum H2 generation (9.70%) at a glycerol conversion of 24.5%. |
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| format | Article |
| id | ump-25422 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T02:38:40Z |
| publishDate | 2014 |
| publisher | Elsevier |
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| spelling | ump-254222020-02-19T06:52:46Z http://umpir.ump.edu.my/id/eprint/25422/ Characterization of La-promoted Ni/Al2 O3 catalysts for hydrogen production from glycerol dry reforming Siew, Kah Weng Lee, Hua Chyn Jolius, Gimbun Cheng, C. K. TP Chemical technology In the current paper, dry (CO2)-reforming of glycerol, a new reforming route, was carried out over alumina (Al2O3)-supported, non-promoted and lanthanum-promoted nickel (Ni) catalysts. Both sets of catalysts were synthesized via a wet co-impregnation procedure. Physicochemical characterization of the catalysts showed that the promoted catalyst possessed smaller metal crystallite size, hence higher metal dispersion compared to the virgin Ni/Al2O3 catalyst. This was also corroborated by the surface images captured by the FESEM analysis. From temperature-programmed calcination analysis, the derivative weight profiles revealed two peaks, which represent a water elimination peak at a temperature range of 373 to 473 K followed by nickel nitrate decomposition from 473 to 573 K. In addition, BET surface area measurements gave 85.0 m2·g−1 for the non-promoted Ni catalyst, whilst the promoted catalysts showed an average of 1% to 6% improvement depending on the La loadings. Significantly, reaction studies at 873 K showed that glycerol dry reforming successfully produced H2. The 2%La-Ni/Al2O3 catalyst, which possessed the largest BET surface area, gave an optimum H2 generation (9.70%) at a glycerol conversion of 24.5%. Elsevier 2014 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25422/1/Characterization%20of%20La-promoted%20NiAl2O31.pdf Siew, Kah Weng and Lee, Hua Chyn and Jolius, Gimbun and Cheng, C. K. (2014) Characterization of La-promoted Ni/Al2 O3 catalysts for hydrogen production from glycerol dry reforming. Journal of Energy Chemistry, 23 (1). pp. 15-21. ISSN 2095-4956. (Published) https://doi.org/10.1016/S2095-4956(14)60112-1 https://doi.org/10.1016/S2095-4956(14)60112-1 |
| spellingShingle | TP Chemical technology Siew, Kah Weng Lee, Hua Chyn Jolius, Gimbun Cheng, C. K. Characterization of La-promoted Ni/Al2 O3 catalysts for hydrogen production from glycerol dry reforming |
| title | Characterization of La-promoted Ni/Al2 O3 catalysts for hydrogen production from glycerol dry reforming |
| title_full | Characterization of La-promoted Ni/Al2 O3 catalysts for hydrogen production from glycerol dry reforming |
| title_fullStr | Characterization of La-promoted Ni/Al2 O3 catalysts for hydrogen production from glycerol dry reforming |
| title_full_unstemmed | Characterization of La-promoted Ni/Al2 O3 catalysts for hydrogen production from glycerol dry reforming |
| title_short | Characterization of La-promoted Ni/Al2 O3 catalysts for hydrogen production from glycerol dry reforming |
| title_sort | characterization of la-promoted ni/al2 o3 catalysts for hydrogen production from glycerol dry reforming |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/25422/ http://umpir.ump.edu.my/id/eprint/25422/ http://umpir.ump.edu.my/id/eprint/25422/ http://umpir.ump.edu.my/id/eprint/25422/1/Characterization%20of%20La-promoted%20NiAl2O31.pdf |