Abstract
Multiscale structure of two Co x Al y O z cermets was examined by a combination of XRD, SEM coupled with EDX, NMR (59Co; 27Al), and textural measurements. A strong CoAlO/CoAl cermet monolith prepared by mechanical alloying of Co and Al powders followed by hydrothermal treatment and calcination in air comprised two parts: the metal core consisting of Co and a Co–Al alloy, and the outer oxide matrix including a mixture of Co x Al3–x O4 spinel and cobalt oxides. The two parts were separated by the alumina interface protecting the metal core against the oxidation. Al2O3/CoAlO/CoAl cermet prepared by mixing the Co–Al mechanically alloyed product and pure aluminum hydroxide with subsequent hydrothermal treatment and calcination in air consisted of three main parts: (i) large cobalt-free porous alumina (ii) surrounded by Co x Al3–x O4 spinel oxides, and (iii) the inner core containing pure Co metal particles covered with the Co–Al alloy. A random distribution of metal particles in the oxide matrix provided an enhanced microwave absorption. A developed porosity ensured a high activity of the catalyst prepared from the porous cermet in the hexane dehydrogenation under microwave heating.
Similar content being viewed by others
References
Gibson RF (2010) A review of recent research on mechanics of multifunctional composite materials and structures. Compos Struct 92:2793–2810. doi:10.1016/j.compstruct.2010.05.003
Pugacheva EV, Borshch VN, Zhuk SY, Andreev DE, Sanin VN, Yukhvid VI (2010) SHS-produced intermetallides as catalysts for deep oxidation of carbon monoxide and hydrocarbons. Int J Self-Propagat High-Temp Synth 19:65–69. doi:10.3103/S1061386210010115
Arkatova LA (2010) The deposition of coke during carbon dioxide reforming of methane over intermetallides. Catal Today 157(1):170–176. doi:10.1016/j.cattod.2010.03.003
S. Pavlova, S. Tikhov, V. Sadykov, Y. Dyatlova, O. Snegurenko, V. Rogov, et al. (2004) Monolith composite catalysts based on ceramometals for partial oxidation of hydrocarbons to synthesis gas, Stud Surf Sci Catal, Nat Gas Convers VII Proc 7th Nat Gas Convers Symp: pp. 223–228. doi:10.1016/S0167-2991(04)80055-7
S.F. Tikhov, V.I. Kurkin, V.A. Sadykov, E. V Slivinsky, Y.N. Dyatlova, A.E. Kuz’min, et al. (2004) Hydrogenated Zr-Fe alloys encapsulated in Al2O3/Al matrix as catalysts for Fischer–Tropsch synthesis, Stud Surf Sci Catal, Nat Gas Convers VII Proc 7th Nat Gas Convers Symp: pp. 337–342. doi:10.1016/S0167-2991(04)80074-0
Khodakov AY, Chu W, Fongarland P (2007) Advances in the development of novel cobalt Fischer–Tropsch catalysts for synthesis of long-chain hydrocarbons and clean fuels. Chem Rev 107:1692–1744. doi:10.1021/cr050972v
Xanthopoulou G, Vekinis G (2000) Deep oxidation of methane using catalysts and carriers produced by self-propagating high-temperature synthesis. Appl Catal A 199:227–238. doi:10.1016/S0926-860X(99)00562-1
Bolotov VA, Udalov EI, Parmon VN, Tanashev YY, Chernousov YD (2012) Pyrolysis of heavy hydrocarbons under microwave heating of catalysts and adsorbents. J Microw Power Electromagn Energy 46:39–46
A. (Ramonville/France) Rousset, X. (Lanouaille/France) Devaux, Composite alumina/metal powders, cermets made from said powders, and processes of production, 5,462,903, 1955. http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-adv.htm&r=22&f=G&l=50&d=PTXT&S1=5,462,903,&OS=5,462,903,&RS=5,462,903
Aharon O, Bar-Ziv S, Gorni D, Cohen-Hyams T, Kaplan WD (2004) Residual stresses and magnetic properties of alumina-nickel nanocomposites. Scr Mater 50:1209–1213. doi:10.1016/j.scriptamat.2004.02.006
Lu T, Pan Y (2010) Combustion synthesis of ferromagnetic Al2O3-based cermets in thermal explosion mode. J Mater Sci 45:5923–5928. doi:10.1007/s10853-010-4672-4
Hosseini SN, Mousavi T, Karimzadeh F, Enayati MH (2011) Thermodynamic aspects of nanostructured CoAl intermetallic compound during mechanical alloying. J Mater Sci Technol 27:601–606. doi:10.1016/S1005-0302(11)60114-X
Hosseini SN, Karimzadeh F, Enayati MH (2012) Development and characterization of CoAl–Al2O3 intermetallic matrix nanocomposite. Mater Chem Phys 136:341–346. doi:10.1016/j.matchemphys.2012.06.030
Tikhov SF, Sadykov VA, Valeev KR, Salanov AN, Cherepanova SV, Bespalko YN et al (2015) Preparation of porous ceramometal composites through the stages of mechanical activation and hydrothermal partial oxidation of Me–Al powders. Catal Today. doi:10.1016/j.cattod.2014.12.009
Goldstein J, Newbury D, Joy D, Lyman C, Echlin P, Sawyer L et al (2008) Scanning electron microscopy in X-Ray microanalysis, 3rd edn. Springer, New York
Kôi Y, Tsujimura A, Hihara T, Kushida T (1961) NMR of Co59 in ferromagnetic cobalt alloys. J Phys Soc Jpn 16:574–574. doi:10.1143/JPSJ.16.574
Tikhov SF, Potapova YV, Sadykov VA, Fenelonov VB, Yudaev IV, Lapina O et al (2005) Synthesis of alumina through hydrothermal oxidation of aluminum powder conjugated with surfactant-directed oriented growth. Mater Res In 9:431–446
Tikhov SF, Pakhomov NA, Nemykina EI, Salanov AN, Sadykov VA, Romanenkov VE et al (2011) Porous ceramic matrix Al2O3/Al composites as supports and precursors for catalysts and permeable materials. In: Cuppoletti J (ed) Metal Ceramic and Polymeric Composites for Various Uses. INTECH, Croatia, pp 195–210
Zolotovskii B, Buyanov R, Bukhtiyarova G, Taraban E, Murin V, Grunvald V et al (1997) Development of the technology and production of spherical alumina for catalysts supports and adsorbents. Russ J Appl Chem 70:299–306 (in Russian)
Cherepanova SV, Tsybulya SV (2004) Simulation of X-Ray powder diffraction patterns for one-dimensionally disordered crystals. Mater Sci Forum 443–444:87–90. doi:10.4028/www.scientific.net/MSF.443-444.87
Ismagilov ZR, Shkrabina RA, Koryabkina NA (1999) New technology for production of spherical alumina supports for fluidized bed combustion. Catal Today 47:51–71. doi:10.1016/S0920-5861(98)00283-1
Seeber BSM, Gonzenbach UT, Gauckler LJ (2013) Mechanical properties of highly porous alumina foams. J Mater Res 28:2281–2287. doi:10.1557/jmr.2013.102
Chernousov YD, Ivannikov VI, Shebolaev IV, Shebolaev IV, Bolotov VA, Tanashev YY et al (2009) Characteristics of a chemical reactor that is a loaded microwave resonator. J Commun Technol Electron 54:231–233. doi:10.1134/S106422690902017X
Leslie-Pelecky DL, Rieke RD (1996) Magnetic properties of nanostructured materials. Chem Mater 8:1770–1783. doi:10.1021/cm960077f
Andreev AS, d’Espinose de Lacaillerie J-B, Lapina OB, Gerashenko A (2015) Thermal stability and hcp–fcc allotropic transformation in supported Co metal catalysts probed near operando by ferromagnetic NMR. Phys Chem Chem Phys 17:14598–14604. doi:10.1039/C4CP05327C
Andreev AS, Lapina OB, d’Espinose de Lacaillerie J-B, Khassin AA (2013) Effect of alumina modification on the structure of cobalt-containing Fischer–Tropsch synthesis catalysts according to internal-field 59Co NMR data. J Struct Chem 54:102–110. doi:10.1134/S0022476613070093
Andreev AS, Lapina OB, Cherepanova SV (2014) A new insight into cobalt metal powder internal field 59Co NMR spectra. Appl Magn Reson 45:1009–1017. doi:10.1007/s00723-014-0580-0
Bakhmutov VI, Shpeizer BG, Prosvirin AV, Dunbar KR, Clearfield A (2009) Supermicroporous silica-based SiO2–Al2O3–NiO materials: solid-state NMR, NMR relaxation and magnetic susceptibility. Microporous Mesoporous Mater 118:78–86. doi:10.1016/j.micromeso.2008.08.023
Golubkova G, Lomovsky O, Kwon Y, Vlasov A, Chuvilin A (2003) Formation of nanocrystalline structures in a Co–Al system by mechanical alloying and leaching. J Alloys Compd 351:101–105. doi:10.1016/S0925-8388(02)01083-6
Maione A, Ruiz P (2006) Structured Pd/gamma-Al2O3 catalysts on FeCr alloy fibers for total combustion of methane. Stud Surf Sci Catal 162:681–688. doi:10.1016/S0167-2991(06)80968-7
Kaplan WD, Avishai A (2006) Ceramic-matrix composites: microstructure, properties and applications. Woodhead, Cambridge
Sadykov V, Parmon V, Tikhov S (2009) Design of some oxide/metal composite supports and catalysts. Compos Interfaces 16:457–476. doi:10.1163/156855409X450954
Usoltsev V, Tikhov S, Salanov A, Sadykov V, Golubkova G, Lomovskii O (2013) Properties of porous FeAlOy/FeAlx ceramic matrix composite influenced by mechanical activation of FeAl powder. Bull Mater Sci 36:1195–1200. doi:10.1007/s12034-013-0594-5
Portnoi VK, Tret’yakov KV, Fadeeva VI (2004) Structural transformations during the mechanochemical synthesis and heating of Co–Al alloys. Inorg Mater 40:937–944. doi:10.1023/B:INMA.0000041325.46591.db
Novakova E, Winterton N, Jarosch K, Brophy J (2005) High-productivity dehydrogenation of light alkanes in a microchannel reactor. Catal Commun 6:586–590. doi:10.1016/j.catcom.2005.05.009
Acknowledgements
This work was supported RFBR Grant #14-08-00251-a, Russian Academy of Sciences and Federal Agency of Scientific Organizations (Project V.45.3.8.).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Tikhov, S.F., Andreev, A.S., Salanov, A.N. et al. Ceramic matrix composites prepared from CoAl powders. J Mater Sci 51, 10487–10498 (2016). https://doi.org/10.1007/s10853-016-0268-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10853-016-0268-y