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Characterization of Ln4Al2O9 (Ln=Y, Sm, Eu, Gd, Tb) rare-earth aluminates as new high-temperature barriers

Morán Ruiz, Aroa; Vidal García, Karmele; Larrañaga Varga, Aitor; Arriortua Marcaida, María Isabel

(Elsevier, 2018-06-01)

A family of cuspidine-type rare-earth (RE) aluminates with the general formula Ln4Al2O9 (Ln= Y, Sm, Eu, Gd, Tb) was prepared for potential use as thermal-barrier coating (TBC) materials with appropriate properties. Various ...

Designing multifunctional pigments for an improved energy efficiency in buildings

Aranzabe Basterrechea, Estíbaliz; Arriortua Marcaida, María Isabel

; Larrañaga Varga, Aitor; Aranzabe, Ana; Villasante, Pedro María; March, Ricard (Elsevier, 2017-07-15)

Materials science offers solutions that when are combined can offer important energy savings in the building sector. In this study, high reflectance coating and thermal storage capacity are combined with the aim of improving ...

Effect of the synthesis conditions on the properties of La0.15Sm0.35Sr0.08Ba0.42FeO3-a cathode material for SOFCs

Vidal García, Karmele; Larrañaga Varga, Aitor; Morán Ruiz, Aroa; Laguna-Bercero, Miguel Angel; Baker, Richard T.; Arriortua Marcaida, María Isabel

(2017-09-13)

The perovskite La0.15Sm0.35Sr0.08Ba0.42FeO3-a has been prepared by the glycine nitrate (GNC) route, varying the fuel/oxidizer ratio (glycine/nitrate, G/N= 1 and 2) and cooling rate (slow cooling and air-quenched), in order ...

K2MnII2(H2O)2C2O4(HPO3)2: A New 2D Manganese(II) Oxalatophosphite with Double-Layered Honeycomb Sheets Stabilized by Potassium Ions

Orive Gómez de Segura, Joseba; Sivasamy, Ramesh; Fernández de Luis, Roberto; Mosquera, Edgar; Arriortua Marcaida, María Isabel

(The Royal Society of Chemistry, 2018-01-21)

A novel 2D metal oxalatophosphite K2MnII2(H2O)2C2O4(HPO3)2 (KMnCP) was hydrothermally synthesized and characterized. The hexagonal morphology and crystal growth faces of KMnCP were predicted by Bravais–Friedel–Donnay–Harker ...

Ionic liqids for the control of the morphology in poly(vinylidene fluoride-co-hexafluoropropylene) membranes

GSaiz, Paula; Lopes, Ana Catarina; Eizagirre, Simone; Fernández de Luis, Roberto; Arriortua Marcaida, María Isabel

(Elsevier, 2018-10-05)

The development of polymer membranes with tailored micro-morphology and wettability is a demand in the areas of filtration, sensors, and tissue engineering, among others. The thermoplastic copolymer poly(vinylidene ...

Catalytic Performance of a New 1D Cu(II) Coordination Polymer {Cu(NO3)(H2O)}(HTae)(4,40-Bpy) for Knoevenagel Condensation

Serrano Larrea, Edurne; Fernández de Luis, Roberto; Arriortua Marcaida, María Isabel

(MDPI, 2016-12-01)

The {Cu(NO3)(H2O)}(HTae)(4,40-Bpy) (H2Tae = 1,1,2,2-tetraacetylethane, 4,40-Bpy = 4,40-Dipyridyl) 1D coordination polymer has been obtained by slow evaporation. The crystal structure consists of parallel and oblique ...

Vanadyl arsenates as catalysts for selective oxidation of organic sulfides and alkenes

Berrocal Torres, Teresa; Serrano Larrea, Edurne; Iglesias, Marta; Arriortua Marcaida, María Isabel

(Elsevier, 2010-12-09)

Two vanadyl arsenates templated with ethylendiamonium (EnVAs) and piperazonium (PipVAs) were evaluated as catalysts for the oxidation of thioethers and alkenes, using H2O2 and t-butyl hydroperoxide (TBHP) as oxidants. The ...

Hydrothermal Synthesis and Study of Inorganic-Organic Hybrid Vanadate of Nickel(II) Coordination Complex with Pyrazine, Ni3(C4H4N2)3(V8O23)

Serrano Larrea, Edurne; Mesa Rueda, José Luis; Arriortua Marcaida, María Isabel

(Elsevier, 2011-02-25)

The three-dimensional hybrid compound Ni3(C4H4N2)3(V8O23) has been synthesized by mild hydrothermal methods under autogenous pressure at 170 ºC, together with another hybrid phase, Ni2(C4H4N2)(V4O12)(H2O)2. The isolation ...

Effects of synthetic conditions on the structural, stability and ion conducting properties of Li0.30(La0.50Ln0.50)0.567TiO3 (Ln= La, Pr, Nd) solid electrolytes for rechargeable lithium batteries

Vidal García, Karmele; Ortega San Martín, Luis; Larrañaga Varga, Aitor; Merino Rubio, Rosa Isabel; Orera Utrilla, Alodia; Arriortua Marcaida, María Isabel

(Elsevier Ltd and Techna Group S.r., 2014-02-03)

The structure, thermal stability, morphology and ion conductivity of titanium perovskites with the general formula Li3xLn2/3−xTiO3 (Ln = rare earth element; 3x= 0.30) are studied in the context of their possible use as ...

Structural Transformations in the Thermal Dehydration of [Cu2(bpa)(btec)(H2O)4]n Coordination Polymer

Bravo García, Laura

; Serrano Larrea, Edurne; Artetxe Arretxe, Beñat

; Lezama Diago, Luis María

; Gutiérrez Zorrilla López, Juan Manuel

; Arriortua Marcaida, María Isabel

(MDPI, 2019-05-13)

Reactions between pyridinic ligands such as 1,2-bis(4-pyridyl)ethane (bpa) and transition metal cations are a very widespread technique to produce extended coordination polymers such as Metal-Organic Frameworks. In combination ...