NDLI: Synthesis and characterization of Cu–Co–Fe hydrotalcites and their calcined products

Content Provider	Springer Nature Link
Author	Carpentier, J. Siffert, S. Lamonier, J. F. Laversin, H. Aboukaïs, A.
Copyright Year	2006
Abstract	A series of new Cu–Co–Fe compounds with the general formula Cu$_{ x }$Co$_{2−x }$Fe$_{1}$HT (x = 0, 0.5, 1, 1.5 and 2) has been prepared by hydrotalcite coprecipitation method. The presence of hydrotalcite phase is revealed by XRD analysis for x values of 0, 0.5 and 1. When the copper quantity is higher than 1, the malachite phase is preferentially formed. These results are confirmed by TG-DTA, FT-IR and XPS analysis. After calcination at 500 °C in air of all samples, XRD analysis reveals the presence of spinel phases such as Co$_{3}$O$_{4}$, CoFe$_{2}$O$_{4}$, CuFe$_{2}$O$_{4}$, Cu$_{ x }$Co$_{ y }$O$_{4}$ in the solids, monoclinic CuO phase when the copper content is greater or equal to 1 and haematite phase for the sample where x is equal to 2. The presence of these phases is also confirmed by XPS results. For comparison, a Co$_{2}$Fe$_{1}$OH sample has been synthesized by classical coprecipitation method and although Co$_{2}$Fe$_{1}$HT sample and Co$_{2}$Fe$_{1}$OH form a similar phase after calcination at 500 °C, Co$_{2}$Fe$_{1}$HT500 presents a higher BET value than Co$_{2}$Fe$_{1}$OH500 sample.
Starting Page	103
Ending Page	110
Page Count	8
File Format	PDF
ISSN	13802224
Journal	Journal of Porous Materials
Volume Number	14
Issue Number	1
e-ISSN	15734854
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2006-12-02
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cu–Co–Fe hydrotalcite Spinel XRD XPS TG-DTA Physical Chemistry Characterization and Evaluation of Materials Catalysis
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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