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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Main Authors:	Siew, Kah Weng, Lee, Hua Chyn, Jolius, Gimbun, Cheng, C. K.
Format:	Article
Language:	English
Published:	Elsevier 2014
Subjects:	TP Chemical technology
Online Access:	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

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recordtype	eprints
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 https://doi.org/10.1016/S2095-4956(14)60112-1 https://doi.org/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
language	English
topic	TP Chemical technology
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
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	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
title	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_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_sort	characterization of la-promoted ni/al2 o3 catalysts for hydrogen production from glycerol dry reforming
publisher	Elsevier
publishDate	2014
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
first_indexed	2023-09-18T22:39:01Z
last_indexed	2023-09-18T22:39:01Z
_version_	1777416789745991680

Characterization of La-promoted Ni/Al2 O3 catalysts for hydrogen production from glycerol dry reforming

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