Design of Al₂O₃/CoAlO/CoAl Porous Ceramometal for Multiple Applications as Catalytic Supports

Abstract:

Porous ceramometal Al₂O₃/CoAlO/CoAl was studied by set of physicochemical techniques such as XRD, SEM, internal field ⁵⁹Co and ²⁷Al MAS NMR, and porosity measurements. They revealed the cermet containing three parts. First, cobalt-free large porous alumina particles which surrounded by the second oxide part representing spinel Co_xAl_3-xO₄ (x=1,2,3) oxides. And third, oxygen-free metallic part consists of cobalt metal particles covered by Co-Al oxide protecting the metallic part from oxidation. Porosity measurements ascertained high porosity (60%) and good SSA (122 m²/g). Also the enhanced adsorption of microwaves due to metallic particles randomly distributed in oxides was found.

• Periodical: Advanced Materials Research (Volume 702)
• Pages: 79-87
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.702.79
• Online since: May 2013
• Authors: Andrey S. Andreev, S. Tikhov, Aleksey N. Salanov, Svetlana V. Cherepanova, Olga B. Lapina, Vasiliy A. Bolotov, Yuriy Yu. Tanashev, Jean Baptiste d’Espinose de Lacaillerie, Vladislav A. Sadykov
• Keywords: Al₂O₃/CoAlO/CoAl Cermet, Internal Field ⁵⁹Co and ²⁷Al MAS NMR, Microwave Irradiation, SEM, X-Ray Diffraction (XRD)

References

[1] Shelvin, S.S., Cermets ed. J.R. Tinkelpaugh and W.B. Grandall. 1966, New York: Reinold Publ.Corp.

[2] Kaplan, W.D. and A. Avishai, Ceramic matrix composites (Microstructure, properties and applications), ed. I.M. Low. 2006, Cambridge, England: Woodhead Publ.Ltd.

[3] Pugacheva, E.V., et al., SHS-Produced Intermetallides as Catalysts for Deep Oxidation of Carbon Monoxide and Hydrocarbons. Int. J. Self-Prop. High-Temp. Syn., 2010. 19(1): p.65.

DOI: 10.3103/s1061386210010115

[4] Arkatova, L.A., The deposition of coke during carbon dioxide reforming of methane over intermetallides. Catalysis Today, 2010. 157(1-4): p.170.

DOI: 10.1016/j.cattod.2010.03.003

[5] Pavlova, S., et al., Monolith composite catalysts based on ceramometals for partial oxidation of hydrocarbons to synthesis gas. Natural Gas Conversion Vii, 2004. 147: p.223.

DOI: 10.1016/s0167-2991(04)80055-7

[6] Tikhov, S.F., et al., Hydrogenated Zr-Fe alloys encapsulated in Al2O3/Al matrix as catalysts for Fischer-Tropsch synthesis. Natural Gas Conversion Vii, 2004. 147: p.337.

DOI: 10.1016/s0167-2991(04)80074-0

[7] Khodakov, A.Y., W. Chu, and P. Fongarland, Advances in the Development of Novel Cobalt Fischer−Tropsch Catalysts for Synthesis of Long-Chain Hydrocarbons and Clean Fuels. Chemical Reviews, 2007. 107(5): p.1692.

DOI: 10.1021/cr050972v

[8] Tikhov, S.F., et al., Porous ceramic matrix Al2O3/Al composites as supports and precursors for catalysts and permeable materials, in Metal, ceramic and polymeric composites for various uses, J. Cuppoletti, Editor. 2011, INTECH: Croatia. p.195.

DOI: 10.5772/19031

[9] Bolotov, V.A., et al., Pyrolysis of Heavy Hydrocarbons Under Microwave Heating of Catalysts and Adsorbents. Journal of Microwave Power and Electromagnetic Energy, 2012. 46(1): p.39.

DOI: 10.1080/08327823.2012.11689822

[10] Patent, USA, N 5462903, (1955)

[11] Aharon, O., et al., Residual stresses and magnetic properties of alumina-nickel nanocomposites. Scripta Materialia, 2004. 50(9): p.1209.

DOI: 10.1016/j.scriptamat.2004.02.006

[12] Lu, T. and Y. Pan, Combustion synthesis of ferromagnetic Al2O3-based cermets in thermal explosion mode. J. Mater. Sci., 2010. 45: p.5923.

DOI: 10.1007/s10853-010-4672-4

[13] Portnoi, V.K., K.V. Tret'yakov, and V.I. Fadeeva, Structural transformations during the mechanochemical synthesis and heating of Co-Al alloys. Inorganic Materials, 2004. 40(9): p.937.

DOI: 10.1023/b:inma.0000041325.46591.db

[14] Kimura, Y., et al., Microstructure Control and Mechanical-Properties of Binary Co-Al Alloys Based on B2 Intermetallic Compound Coal. Materials Transactions Jim, 1994. 35(3): p.182.

DOI: 10.2320/matertrans1989.35.182

[15] Hosseini, S.N., et al., Thermodynamic Aspects of Nanostructured CoAl Intermetallic Compound during Mechanical Alloying. Journal of Materials Science & Technology, 2011. 27(7): p.601.

DOI: 10.1016/s1005-0302(11)60114-x

[16] Tikhov, S., et al., Design of composite porous cermets synthesized by hydrothermal treatment of CrAl powder followed by calcination. Journal of Materials Science, 2010. 45(12): p.3160.

DOI: 10.1007/s10853-010-4322-x

[17] Andreev, A., et al., Formation of Micro, Nano and Atomic-Level Structure of CoAlO/Co-Al Cermets Prepared by Mechanical Alloying. J. Mater. Sci. Eng. A, 2012. 2(2): p.121.

[18] Goldstein, J., et al., Scanning Electron Microscopy in X-Ray Microanalysis. 3rd ed. 2008, New York: Springer.

[19] INCA Energy Operation Manual, O.I.A., UK, 2004.

[20] Sort, J., et al., Role of stacking faults in the structural and magnetic properties of ball-milled cobalt Phys. Rev. B, 2003. 68: p.014421.

[21] Koi, Y. and A. Tsujimura, NMR of Co59 in Ferromagnetic Cobalt Alloys. J. Phys. Soc. Jpn., 1961. 16: p.574.

[22] Tikhov, S.F., et al., Physicochemical principles of the synthesis of porous composite materials through the hydrothermal oxidation of aluminum powder. Kinet Catal+, 2005. 46(5): p.641.

DOI: 10.1007/s10975-005-0120-x

[23] Zolotovskii, B., et al., Development of the technology and production of spherical alumina for catalysts supports and adsorbents. Russian Journal of Applied Chemistry, 1997. 70(1): p.299.

[24] Tikhov, S.F., et al., Synthesis of alumina through hydrothermal oxidation of aluminum powder conjugated with surfactant-directed oriented growth Mat. Res. In. online, 2005. 9: p.431.

[25] Chernousov, Y.D., et al., Characteristics of a chemical reactor that is a loaded microwave resonator. Journal of Communications Technology and Electronics, 2009. 54(2): p.231.

[26] Gossard, A.C. and A.M. Portis, Observation of nuclear resonanse in a ferromagnet. Phys. Rev. Lett., 1959. 3(4): p.164.

[27] Gossard, A.C., et al., Ferromagnetic Nuclear Resonance of Single-Domain Cobalt Particles. Physical Review, 1965. 138(5A): p. A1415.

DOI: 10.1103/physrev.138.a1415

[28] Koi, Y., A. Tsujimura, and T. Kushida, NMR of Co59 in Ferromagnetic Hexagonal Cobalt Metal. J. Phys. Soc. Jpn., 1960. 15: p.2100.

DOI: 10.1143/jpsj.15.2100

[29] Kawakami, M., T. Hihara, and Y. Koi, The Co59 Nuclear Magnetic Resonance in Hexagonal Cobalt. J. Phys. Soc. Jpn., 1972. 33(6): p.1591.

[30] Hardy, W.A., Nuclear Resonances in Cubic, Hexagonal, and Mixed Phase Cobalt Powders and Thin Films. J. Appl. Phys., 1961. 32(3): p. S122.

DOI: 10.1063/1.2000372

[31] Panissod, P., et al., NMR analysis of buried metallic interfaces. Hyperfine Interact., 1996. 97-98: p.75.

DOI: 10.1007/bf02150169

[32] Panissod, P., Structural and magnetic investigations of ferromagnets by NMR. Application to magnetic metallic multilayers, in Frontiers in Magnetism of Reduced Dimension systems, V.G. Bar'yakhtar, P.E. Wigen, and N.A. Lesnik, Editors. 1998, Kluwer Academic. p.225.

DOI: 10.1007/978-94-011-5004-0_10

[33] Bibring, H. and F. Sebilleau, Rev. Met., 1955. 52.

[34] Wieldraaijer, H., W.J.M. de Jonge, and J.T. Kohlhepp, Electric-field gradients in thin face-centered-tetragonal Co films observed by nuclear magnetic resonance. Physical Review B, 2005. 72(15): p.155409.

DOI: 10.1103/physrevb.72.155409

[35] Bakhmutov, V.I., et al., Supermicroporous silica-based SiO2-Al2O3-NiO materials: Solid-state NMR, NMR relaxation and magnetic susceptibility. Microporous and Mesoporous Materials, 2009. 118(1-3): p.78.

DOI: 10.1016/j.micromeso.2008.08.023

[36] Cowan, D.L. and L.W. Anderson, Nuclear Magnetic Resonance of 61Ni in Nickel Metal. Physical Review, 1965. 139(2A): p. A424.