Characterization of La-promoted Ni/Al2O3 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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Main Authors:	Kah, Weng Siew, Hua, Chyn Lee, Jolius, Gimbun, Cheng, C. K.
Format:	Article
Published:	Elsevier 2014
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/5819/ http://umpir.ump.edu.my/id/eprint/5819/ http://umpir.ump.edu.my/id/eprint/5819/

id	ump-5819
recordtype	eprints
spelling	ump-58192018-02-21T02:45:50Z http://umpir.ump.edu.my/id/eprint/5819/ Characterization of La-promoted Ni/Al2O3 Catalysts for Hydrogen Production from Glycerol Dry Reforming Kah, Weng Siew Hua, Chyn Lee 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 2014-01 Article PeerReviewed Kah, Weng Siew and Hua, Chyn Lee and Jolius, Gimbun and Cheng, C. K. (2014) Characterization of La-promoted Ni/Al2O3 Catalysts for Hydrogen Production from Glycerol Dry Reforming. Journal of Energy Chemistry, 23 (1). pp. 15-21. ISSN 2095-4956 http://dx.doi.org/10.1016/S2095-4956(14)60112-1 DOI:10.1016/S2095-4956(14)60112-1
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
topic	TP Chemical technology
spellingShingle	TP Chemical technology Kah, Weng Siew Hua, Chyn Lee Jolius, Gimbun Cheng, C. K. Characterization of La-promoted Ni/Al2O3 Catalysts for Hydrogen Production from Glycerol Dry Reforming
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%.
format	Article
author	Kah, Weng Siew Hua, Chyn Lee Jolius, Gimbun Cheng, C. K.
author_facet	Kah, Weng Siew Hua, Chyn Lee Jolius, Gimbun Cheng, C. K.
author_sort	Kah, Weng Siew
title	Characterization of La-promoted Ni/Al2O3 Catalysts for Hydrogen Production from Glycerol Dry Reforming
title_short	Characterization of La-promoted Ni/Al2O3 Catalysts for Hydrogen Production from Glycerol Dry Reforming
title_full	Characterization of La-promoted Ni/Al2O3 Catalysts for Hydrogen Production from Glycerol Dry Reforming
title_fullStr	Characterization of La-promoted Ni/Al2O3 Catalysts for Hydrogen Production from Glycerol Dry Reforming
title_full_unstemmed	Characterization of La-promoted Ni/Al2O3 Catalysts for Hydrogen Production from Glycerol Dry Reforming
title_sort	characterization of la-promoted ni/al2o3 catalysts for hydrogen production from glycerol dry reforming
publisher	Elsevier
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/5819/ http://umpir.ump.edu.my/id/eprint/5819/ http://umpir.ump.edu.my/id/eprint/5819/
first_indexed	2023-09-18T22:01:14Z
last_indexed	2023-09-18T22:01:14Z
_version_	1777414411704598528

Characterization of La-promoted Ni/Al2O3 Catalysts for Hydrogen Production from Glycerol Dry Reforming

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