Synthesis, characterization and activity pattern of carbon nanofibers based copper/zirconia catalysts for carbon dioxide hydrogenation to methanol: Influence of calcination temperature

A series of novel carbon nanofibers (CNFs) supported bimetallic copper/zirconia catalysts are synthesized by deposition precipitation method and calcined at different temperatures. Calcined catalysts are characterized by various techniques like X-ray diffraction, N sub(2) adsorption-desorption, N su...

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Veröffentlicht in:	Journal of power sources 2015-01, Vol.274, p.619-628
Hauptverfasser:	Din, Israf Ud, Shaharun, Maizatul S, Subbarao, Duvvuri, Naeem, A
Format:	Artikel
Sprache:	eng
Schlagworte:	CARBON DIOXIDE Carbon fibers Catalysis CATALYSTS Copper FABRICATION FIBERS HYDROGEN HYDROGENATION Methyl alcohol OXIDES Roasting Synthesis Zirconium dioxide
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container_title	Journal of power sources
container_volume	274
creator	Din, Israf Ud Shaharun, Maizatul S Subbarao, Duvvuri Naeem, A
description	A series of novel carbon nanofibers (CNFs) supported bimetallic copper/zirconia catalysts are synthesized by deposition precipitation method and calcined at different temperatures. Calcined catalysts are characterized by various techniques like X-ray diffraction, N sub(2) adsorption-desorption, N sub(2)O chemisorption, high resolution transmission electron microscopy, temperature programmed reduction, X-ray photo-electron spectroscopy and temperature programmed desorption (CO sub(2) & NH sub(3)). The structure-activity correlation is discussed in details. The results demonstrate 450 [degrees]C as optimum calcination temperature for methanol synthesis rate with CO sub(2)/H sub(2) feed volume ratio of 1:3. CO sub(2) conversion is found to be directly proportional to copper metallic surface area (S sub(Cu)), while a linear relationship is observed between methanol synthesis rate and fraction of dispersed Cu.
doi_str_mv	10.1016/j.jpowsour.2014.10.087
format	Article
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source	ScienceDirect Journals (5 years ago - present)
subjects	CARBON DIOXIDE Carbon fibers Catalysis CATALYSTS Copper FABRICATION FIBERS HYDROGEN HYDROGENATION Methyl alcohol OXIDES Roasting Synthesis Zirconium dioxide
title	Synthesis, characterization and activity pattern of carbon nanofibers based copper/zirconia catalysts for carbon dioxide hydrogenation to methanol: Influence of calcination temperature
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