Preparation and characterization of nickel-aluminum mixed oxides obtained by thermal decomposition of hydrotalcite-type precursors

作者: O CLAUSE

DOI: 10.1016/0021-9517(92)90200-2

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摘要: Abstract A series of nickel-aluminum mixed hydroxides was prepared by coprecipitation and their structure composition examined X-ray diffraction thermal analysis. The homogeneity the Ni(II) Al(III) cations in brucite-type layers has been verified EXAFS spectroscopy. hydrotalcite-type precipitates were calcined resulting oxides investigated. selective dissolution a Ni-doped alumina phase performed concentrated NaOH solution. significantly contributes to surface area but is suggested play minor role for stability nickel oxide. model obtained from hydrotalcite decomposition proposed involve formation oxide phases strong interaction with partially decomposed precursor or spinal-type at NiO-Al2O3 interface. latter thought be responsible stabilization phase.

参考文章(26)
Hughes D, Davies P, STEAM REFORMING CATALYSTS ,(1973)
Y.-J. Huang, J.A. Schwarz, J.R. Diehl, J.P. Baltrus, Effect of Catalyst Preparation on Catalytic Activity: V. Chemical Structures on Nickel/Alumina Catalysts Applied Catalysis. ,vol. 36, pp. 163- 175 ,(1988) , 10.1016/S0166-9834(00)80112-8
F. Albert Cotton, Advanced Inorganic Chemistry ,(1999)
Margot Becke-Goehring, Rudolf Warncke, Leopold Gmelin, Ramona Becker, Deutsche Chemische Gesellschaft, A. Kotowski, E. H. E. Pietsch, Franz Peters, R. J. Meyer, Ekkehard Fluck, Gmelins Handbuch der anorganischen Chemie Verlag Chemie. ,(1952)
Alexander Frank . Wells, Structural inorganic chemistry ,(1945)
M.José Hernandez, M.Angeles Ulibarri, José Luis Rendón, Carlos J. Serna, Thermal stability of Ni, Al double hydroxides with various interlayer anions Thermochimica Acta. ,vol. 81, pp. 311- 318 ,(1984) , 10.1016/0040-6031(84)85136-9
Edgar C. Kruissink, Louis L. van Reijen, Julian R. H. Ross, Coprecipitated nickel–alumina catalysts for methanation at high temperature. Part 1.—Chemical composition and structure of the precipitates Journal of the Chemical Society, Faraday Transactions. ,vol. 77, pp. 649- 663 ,(1981) , 10.1039/F19817700649
Eiichi Suzuki, Yoshio Ono, Aldol Condensation Reaction between Formaldehyde and Acetone over Heat-Treated Synthetic Hydrotalcite and Hydrotalcite-Like Compounds Bulletin of the Chemical Society of Japan. ,vol. 61, pp. 1008- 1010 ,(1988) , 10.1246/BCSJ.61.1008
O. Clause, M. Gazzano, F. Trifiro′, A. Vaccari, L. Zatorski, Preparation and thermal reactivity of nickel/chromium and nickel/aluminium hydrotalcite-type precursors Applied Catalysis. ,vol. 73, pp. 217- 236 ,(1991) , 10.1016/0166-9834(91)85138-L