Catalytic Properties of Ru Nanoparticles Embedded on Ordered Mesoporous Carbon with Different Pore Size in Fischer-Tropsch Synthesis

A series of 3 wt% Ru embedded on ordered mesoporous carbon (OMC) catalysts with different pore sizes were prepared by autoreduction between ruthenium precursors and carbon sources at 1123 K. Ru nanoparticles were embedded on the carbon walls of OMC. Characterization technologies including power X-ra...

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Main Authors:	Xiong, Kun, Zhang, Yuhua, Li, Jinlin, Liew, Kong Yong
Format:	Article
Published:	Elsevier 2013
Subjects:	Q Science (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/6240/ http://umpir.ump.edu.my/id/eprint/6240/ http://umpir.ump.edu.my/id/eprint/6240/

id	ump-6240
recordtype	eprints
spelling	ump-62402016-06-13T02:18:04Z http://umpir.ump.edu.my/id/eprint/6240/ Catalytic Properties of Ru Nanoparticles Embedded on Ordered Mesoporous Carbon with Different Pore Size in Fischer-Tropsch Synthesis Xiong, Kun Zhang, Yuhua Li, Jinlin Liew, Kong Yong Q Science (General) A series of 3 wt% Ru embedded on ordered mesoporous carbon (OMC) catalysts with different pore sizes were prepared by autoreduction between ruthenium precursors and carbon sources at 1123 K. Ru nanoparticles were embedded on the carbon walls of OMC. Characterization technologies including power X-ray diffraction (XRD), nitrogen adsorption-desorption, transmission electron microscopy (TEM), and hydrogen temperature-programmed reduction (H2-TPR) were used to scrutinize the catalysts. The catalyst activity for Fischer-Tropsch synthesis (FTS) was measured in a fixed bed reactor. It was revealed that 3 wt% Ru-OMC catalysts exhibited highly ordered mesoporous structure and large surface area. Compared with the catalysts with smaller pores, the catalysts with larger pores were inclined to form larger Ru particles. These 3 wt% Ru-OMC catalysts with different pore sizes were more stable than 3 wt% Ru/AC catalyst during the FTS reactions because Ru particles were embedded on the carbon walls, suppressing particles aggregation, movement and oxidation. The catalytic activity and C5+ selectivity were found to increase with the increasing pore size, however, CH4 selectivity showed the opposite trend. These changes may be explained in terms of the special environment of the active Ru sites and the diffusion of products in the pores of the catalysts, suggesting that the activity and hydrocarbon selectivity are more dependent on the pore size of OMC than on the Ru particle size. Elsevier 2013 Article PeerReviewed Xiong, Kun and Zhang, Yuhua and Li, Jinlin and Liew, Kong Yong (2013) Catalytic Properties of Ru Nanoparticles Embedded on Ordered Mesoporous Carbon with Different Pore Size in Fischer-Tropsch Synthesis. Journal of Energy Chemistry, 22 (4). pp. 560-566. ISSN 2095-4956 http://dx.doi.org/10.1016/S2095-4956(13)60073-X DOI: 10.1016/S2095-4956(13)60073-X
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
topic	Q Science (General)
spellingShingle	Q Science (General) Xiong, Kun Zhang, Yuhua Li, Jinlin Liew, Kong Yong Catalytic Properties of Ru Nanoparticles Embedded on Ordered Mesoporous Carbon with Different Pore Size in Fischer-Tropsch Synthesis
description	A series of 3 wt% Ru embedded on ordered mesoporous carbon (OMC) catalysts with different pore sizes were prepared by autoreduction between ruthenium precursors and carbon sources at 1123 K. Ru nanoparticles were embedded on the carbon walls of OMC. Characterization technologies including power X-ray diffraction (XRD), nitrogen adsorption-desorption, transmission electron microscopy (TEM), and hydrogen temperature-programmed reduction (H2-TPR) were used to scrutinize the catalysts. The catalyst activity for Fischer-Tropsch synthesis (FTS) was measured in a fixed bed reactor. It was revealed that 3 wt% Ru-OMC catalysts exhibited highly ordered mesoporous structure and large surface area. Compared with the catalysts with smaller pores, the catalysts with larger pores were inclined to form larger Ru particles. These 3 wt% Ru-OMC catalysts with different pore sizes were more stable than 3 wt% Ru/AC catalyst during the FTS reactions because Ru particles were embedded on the carbon walls, suppressing particles aggregation, movement and oxidation. The catalytic activity and C5+ selectivity were found to increase with the increasing pore size, however, CH4 selectivity showed the opposite trend. These changes may be explained in terms of the special environment of the active Ru sites and the diffusion of products in the pores of the catalysts, suggesting that the activity and hydrocarbon selectivity are more dependent on the pore size of OMC than on the Ru particle size.
format	Article
author	Xiong, Kun Zhang, Yuhua Li, Jinlin Liew, Kong Yong
author_facet	Xiong, Kun Zhang, Yuhua Li, Jinlin Liew, Kong Yong
author_sort	Xiong, Kun
title	Catalytic Properties of Ru Nanoparticles Embedded on Ordered Mesoporous Carbon with Different Pore Size in Fischer-Tropsch Synthesis
title_short	Catalytic Properties of Ru Nanoparticles Embedded on Ordered Mesoporous Carbon with Different Pore Size in Fischer-Tropsch Synthesis
title_full	Catalytic Properties of Ru Nanoparticles Embedded on Ordered Mesoporous Carbon with Different Pore Size in Fischer-Tropsch Synthesis
title_fullStr	Catalytic Properties of Ru Nanoparticles Embedded on Ordered Mesoporous Carbon with Different Pore Size in Fischer-Tropsch Synthesis
title_full_unstemmed	Catalytic Properties of Ru Nanoparticles Embedded on Ordered Mesoporous Carbon with Different Pore Size in Fischer-Tropsch Synthesis
title_sort	catalytic properties of ru nanoparticles embedded on ordered mesoporous carbon with different pore size in fischer-tropsch synthesis
publisher	Elsevier
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/6240/ http://umpir.ump.edu.my/id/eprint/6240/ http://umpir.ump.edu.my/id/eprint/6240/
first_indexed	2023-09-18T22:01:49Z
last_indexed	2023-09-18T22:01:49Z
_version_	1777414449263542272

Catalytic Properties of Ru Nanoparticles Embedded on Ordered Mesoporous Carbon with Different Pore Size in Fischer-Tropsch Synthesis

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