Ubaldo Ortiz Mendez

By Oxana V. Kharissova, Boris I. Kharisov and Ubaldo Ortiz Méndez

Part of the book: Advances in Induction and Microwave Heating of Mineral and Organic Materials

By Boris I. Kharisov, Oxana V. Kharissova and Ubaldo Ortiz Méndez

Part of the book: The Development and Application of Microwave Heating

By Boris I. Kharisov, Oxana V. Kharissova, H.V. Rasika Dias, Ubaldo Ortiz Méndez, Idalia Gómez de la Fuente, Yolanda Peña and Alejandro Vázquez Dimas

Available data on catalytic applications of the iron-containing nanomaterials are reviewed. Main synthesis methods of nZVI, nano-sized iron oxides and hydroxides, core-shell and alloy structures, ferrites, iron-containing supported forms, and composites are described. Supported structures include those coated and on the basis of polymers or inert inorganic materials (i.e., carbon, titania or silica). Description of catalytic processes includes the decomposition reactions (in particular photocatalytic processes), reactions of dehydrogenation, oxidation, alkylation, C–C coupling, among a series of other processes. Certain attention is paid to magnetic recovery of catalysts from reaction systems and their reuse up to several runs almost without loss of catalytic activity.

Part of the book: Advanced Catalytic Materials

By Oxana Vasilievna Kharissova, Beatriz Ortega García, Boris Ildusovich Kharisov and Ubaldo Ortiz Méndez

Preparation, properties, and applications of magnetic-graphene-based nanocomposites are reviewed. Graphene magnetic nanocomposites include those on the basis of elemental metals (Fe, Co, Ni), magnetic nanoclusters, various morphological forms of iron oxides (Fe2O3, Fe3O4), ferrites MFe2O4, 3D graphene aerogels@hierarchical Fe3O4 nanoclusters, single-molecule magnets like TbPc2 (Pc: phthalocyanine), other organometallic-containing composites (benzene-metal-graphene), as well as polycomponent nanocomposites such as Ag/Fe3O4/G (G: graphene), Fe3O4/CdS/G, or FePc/Fe3O4/GO (GO: graphene oxide), among others. Their available synthesis methods consist commonly of hydrothermal and solvothermal techniques, sol-gel autocombustion, sonoelectrochemical polymerization, thermal expansion and thermal reduction, microwave-assisted technique, and covalent bonding chemical methods. Their current and potential applications are distinct devices, in particular for colorimetric detection of glucose, construction materials, analytical, sensor and biosensor applications, environmental remediation, compounds with antibacterial properties, catalysis and photocatalysis, biological imaging, oil absorption, etc.

Part of the book: Advances in Carbon Nanostructures