Synthesis and characterization of Cu–Co–Fe hydrotalcites and their calcined products
Source abstract
Abstract
A series of new Cu–Co–Fe compounds with the general formula Cu x Co2−x Fe1HT (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 Co3O4, CoFe2O4, CuFe2O4, Cu x Co y O4 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 Co2Fe1OH sample has been synthesized by classical coprecipitation method and although Co2Fe1HT sample and Co2Fe1OH form a similar phase after calcination at 500 °C, Co2Fe1HT500 presents a higher BET value than Co2Fe1OH500 sample.
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Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Thermal Expansion and Ionic Conductivity · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
Show source-provided references
1. F. Cavani, F. Trifiro, A. Vaccari, Catal. Today 11, 173 (1991)10.1016/0920-5861(91)80068-K ↗
2. H.C.B. Hansen, C.B. Koch, Clays Clay Miner. 42(2), 170 (1994)10.1346/CCMN.1994.0420207 ↗
3. E.M. Serwicka, K. Bahranowski, Catal. Today 90, 85 (2004)10.1016/j.cattod.2004.04.012 ↗
4. A. Vaccari, Appl. Clay Sci. 14, 161 (1999)10.1016/S0169-1317(98)00058-1 ↗
5. S.T. Yong, K. Hidajat, S. Kawi, J. Power Sources 131, 91 (2004)10.1016/j.jpowsour.2004.01.027 ↗
6. A. Alejandre, F. Medina, X. Rodriguez, P. Salagre, J.E. Sueiras, J. Catal. 188, 311 (1999)10.1006/jcat.1999.2625 ↗
7. K. Bahranowski, E. Bielanska, R. Janik, T. Machej, E.M. Serwicka, Clay Miner. 34, 67 (1999)10.1180/000985599546082 ↗
8. K. Bahranowski, R. Dula, M. Gasior, M. Labanowska, A. Michalik, L.A. Vartikian, E.M. Serwicka, Appl. Clay Sci. 18, 93 (2001)10.1016/S0169-1317(00)00033-8 ↗
9. F. Kovanda, K. Jiratova, J. Rymes, D. Kolousek, Appl. Clay Sci. 18, 71 (2001)10.1016/S0169-1317(00)00032-6 ↗
10. J. Carpentier, J.F. Lamonier, S. Siffert, E.A. Zhilinskaya, A. Aboukais, Appl. Catal. A 234, 91 (2002)10.1016/S0926-860X(02)00201-6 ↗
11. R. Zhao, C. Yin, H. Zhao, C. Lin, Synth. Fuel Process. Technol. 81, 201 (2003)10.1016/S0378-3820(03)00012-2 ↗
12. K. Takehira, T. Shishido, D. Shoro, K. Murakami, M. Honda, T. Kawabata, K. Takaki, Catal. Commun. 5, 209 (2004)10.1016/j.catcom.2004.02.004 ↗
13. S.M. Auer, R. Wandeler, U. Gobel, A. Baiker, J. Catal. 169, 1 (1997)10.1006/jcat.1997.1670 ↗
14. G. Carja, R. Nakamura, H. Niiyama, Appl. Catal. A 236, 91 (2002)10.1016/S0926-860X(02)00277-6 ↗
15. S. Kannan, Appl. Clay Sci. 13, 347 (1998)10.1016/S0169-1317(98)00032-5 ↗
16. S. Kannan, C.S. Swamy, Catal. Today 53, 725 (1999)10.1016/S0920-5861(99)00159-5 ↗
17. L. Chmielarz, P. Kustrowski, A. Rafalska-Lasocha, D. Majola, R. Dziembaj, Appl. Catal. B 35, 195 (2002)10.1016/S0926-3373(01)00254-5 ↗
18. A.E. Palomares, J.M. Lopez-Nieto, F.J. Lazaro, A. Lopez, A. Corma, Appl. Catal. B 20, 257 (1999)10.1016/S0926-3373(98)00121-0 ↗
19. T.A.S. Ferreira, J.C. Waerenborgh, M.H.R.M. Mendonca, M.R. Nunes, F.M. Costa, Solid State Sci. 5, 383 (2003)10.1016/S1293-2558(03)00011-6 ↗
20. E. Uzunova, D. Klissurski, I. Mitov, P. Stefanov, Chem. Mater. 5, 576 (1993)10.1021/cm00028a028 ↗
21. G. Carja, R. Nakamura, T. Aida, H. Niiyama, Micropor. Mesopor. Mater. 47, 275 (2001)10.1016/S1387-1811(01)00387-0 ↗
22. S.M. Hoque, Md.A. Choudhury, Md.F. Islam, J. Magn. Magn. Mater. 251, 292 (2002)10.1016/S0304-8853(02)00700-X ↗
23. A. Vaccari, Catal. Today 41, 53 (1998)10.1016/S0920-5861(98)00038-8 ↗
24. St. .G. Christoskova, M. Stoyanova, M. Georgieva, D. Mehandjiev, Thermochim. Acta 292, 77 (1997)10.1016/S0040-6031(96)03144-9 ↗
25. Y. Lwin, M.A Yarmo, Z. Yaakob, A.B. Mohamad, W.R.W Daud, Mater. Res. Bull. 36, 193 (2001)10.1016/S0025-5408(01)00491-3 ↗
26. St. G. Christoskova, M. Stoyanova, M. Georgieva D. Mehandjiev, Mater. Chem. Phys. 60, 39 (1999)10.1016/S0254-0584(99)00053-X ↗
27. J.T. Kloprogge, L. Hickey, R.L. Frost, Appl. Clay Sci. 18, 37 (2001)10.1016/S0169-1317(00)00028-4 ↗
28. K. Nakamoto, Infrared Spectra of Inorganic and Coordination Compounds, 2nd edn (Willey Interscience, New-York, 1970), p.169
29. A.R. Gonzalez-Elipe, J.P. Espinos, A.G. Fernandez Munuera, Appl. Surf. Sci. 45, 103 (1990)10.1016/0169-4332(90)90060-D ↗
30. S. Ardizzone, C.L. Bianchi, M. Fadoni, B. Vercelli, Appl. Surf. Sci. 119, 253 (1997)10.1016/S0169-4332(97)00180-3 ↗
31. C.S. Gopinath, S.G. Hedge, A.V. Ramaswamy, S. Mahapatra, Mater. Res. Bull. 37, 1323 (2002)10.1016/S0025-5408(02)00763-8 ↗
32. B.R. Strohmeier, D.E. Leyden, R.S. Field, D.M. Hercules, J. Catal. 94, 514 (1985)10.1016/0021-9517(85)90216-7 ↗
33. J. Batista, A. Pintar, D. Mandrino, M. Jenko, V. Martin, Appl. Catal. A 206, 113 (2001)10.1016/S0926-860X(00)00589-5 ↗
34. P. Porta, G. Fierro, M. Lo Jacono, G. Moretti, Catal. Today 2, 675 (1988)10.1016/0920-5861(88)85031-4 ↗
35. A. Mekki, D. Holland, C.F. Mc Conville, Kh. Ziq, J. Non-Cryst. Solids 220, 267 (1997)10.1016/S0022-3093(97)00300-1 ↗
36. D.V. Cesar, C.A. Perez, M. Schmal, V.M.M. Salim, Appl. Surf. Sci. 157, 159 (2000)10.1016/S0169-4332(99)00568-1 ↗