Escolástico Rozalén, Sonia; Ivanova, Mariya; Solis Díaz, Cecilia; Roitsch, Stefan; Meulenberg, Wilhem Albert; Serra Alfaro, José Manuel(Royal Society of Chemistry, 2012)
[EN] The structural and transport properties as well as the chemical stability of a series of proton-conducting oxides based on yttrium-doped barium zirconate were investigated. Specifically, Pr-, Fe- and Mn-doped ...
[EN] Catalytic CO2 methanation technology can be improved by process intensification, i.e. enabling higher energy efficiency and process sustainability. Here, thin-film composite membranes (TFCM) were developed for in-situ ...
Solis Díaz, Cecilia; Escolástico Rozalén, Sonia; Haugsrud, Reidar; Serra Alfaro, José Manuel(American Chemical Society, 2011)
[EN] The conduction properties of La5.5WO12-δ have been studied by using the electrochemical conductivity relaxation technique. Exchange and diffusion coefficients have been obtained from relaxation experiments including ...
Ivanova, M. E.; Deibert, W.; Marcano, D.; Escolástico Rozalén, Sonia; Mauer, G.; Meulenberg, W. A.; Bram, M.; Serra Alfaro, José Manuel; Vassen, R.; Guillon, O.(Elsevier, 2019-07-15)
[EN] In the context of energy conversion efficiency and decreasing greenhouse gas emissions from power generation and energy-intensive industries, membrane technologies for H-2 extraction and CO2 capture and utilization ...
Escolástico Rozalén, Sonia(Universitat Politècnica de València, 2013-02-21)
La tesis está basada en el desarrollo de materiales sólidos conductores mixtos electrónicos-protónicos y para su aplicación en membranas de separación de hidrógeno a alta temperatura. A continuación se resumen brevemente ...
Escolástico Rozalén, Sonia; Serra Alfaro, José Manuel(Elsevier, 2015-09-01)
This work presents the structural and electrochemical characterization of mixed conducting materials based on the system Nd5.5W1-xUxO11.25-delta where x = 0.1, 0.5 and 1. The evolution of the crystalline structure is studied ...
Escorihuela Roca, Sara(Universitat Politècnica de València, 2019-05-20)
[ES] La presente tesis doctoral se centra en el desarrollo de nuevas membranas de separación de gases, así como su empleo in-situ en reactores catalíticos de membrana para la intensificación de procesos. Para este propósito, ...
[EN] Novel selective polymeric thin-film composite membranes (TFCMs) for applications at elevated temperatures were developed. Thin selective layers of the polyimides Matrimid 5218((R)) and 6FDA-6FpDA were cast on a developed ...
Lobera González, Maria Pilar; Valero Cubas, Soledad; Serra Alfaro, José Manuel; Escolástico Rozalén, Sonia; Argente Villaplana, Estefanía; Botti, V.(Elsevier, 2011-12-15)
[EN] This work presents the optimization of the operating conditions of a membrane reactor for the oxidative dehydrogenation of ethane. The catalytic membrane reactor is based on a mixed ionic-electronic conducting material, ...
Escolástico Rozalén, Sonia; Schroeder, Michael; Serra Alfaro, José Manuel(Royal Society of Chemistry, 2014)
[EN] The tungstates Ln6WO12 are proton conducting materials exhibiting mixed (protonic and electronic) conductivity and remarkable stability in moist CO2 environments. Hydrogen-permeable membranes made of this kind of ...
Escolástico Rozalén, Sonia; Solis Díaz, Cecilia; Kjolseth, C.; Serra Alfaro, José Manuel(Royal Society of Chemistry, 2014-11)
[EN] Mixed electronic-and protonic-conducting composites made up of physical mixtures of La5.5WO11.25-delta-La0.87Sr0.13CrO3-delta (LWO-LSC) have been evaluated as H-2 separation membranes for operation at temperatures ...
[EN] Mixed proton and electron conductor ceramic composites are among the most promising materials for hydrogen separation membrane technology especially if designed in an asymmetrical configuration (thin membrane supported ...
Escolástico Rozalén, Sonia; Balaguer Ramirez, Maria; Solis Díaz, Cecilia; Toldrá-Reig, Fidel; Somacescu, S.; Gerhards, U.; Aguadero, A.; Haas-Santo, K.; Dittmeyer, R.; Serra Alfaro, José Manuel(The Royal Society of Chemistry, 2023-08-17)
[EN] Catalytic membrane reactors (CMR) based on H-2-separation membranes can improve the performance of thermodynamically-limited reactions such as high-pressure steam methane reforming, ammonia cracking, non-oxidative ...
[EN] CsH2PO4 is a proton conductor pertaining to the acid salts group and shows a phase transition from monoclinic to cubic phase at 232 +/- 2 degrees C under high-steam atmospheres (>30%). This cubic phase gives rise to ...
[EN] Electrochemical reactors based on proton-conducting ceramic electrolytes show a great potential in the conversion of hydrocarbons by enabling the intensification via the in-situ extraction of the H-2 produced. However, ...
Escolástico Rozalén, Sonia; Somacescu, Simona; Serra Alfaro, José Manuel(American Chemical Society, 2014-01-28)
Nd5.5WO11.25-delta is a mixed proton-electron conducting oxide, which shows an important mixed conductivity and stability in moist CO2 environments. However, the H-2 fluxes obtained with this material are not high enough ...
[EN] Three polyimides and six inorganic fillers in a form of nanometer-sized particles were studied as thick film solution cast mixed matrix membranes (MMMs) for the transport of CO2, CH4, and H2O. Gas transport properties ...
Seeger, Janka; Ivanova, Mariya E.; Meulenberg, Wilhelm A.; Sebold, Doris; Stoever, Detlev; Scherb, Tobias; Schumacher, Gerhard; Escolástico Rozalén, Sonia; Solis Díaz, Cecilia; Serra Alfaro, José Manuel(American Chemical Society, 2013-09-16)
[EN] Mixed proton-electron conductors (MPEC) can be used as gas separation membranes to extract hydrogen from a gas stream, for example, in a power plant. From the different MPEC, the ceramic material lanthanum tungstate ...
Serra Alfaro, José Manuel; Somacescu, Simona; Escolástico Rozalén, Sonia(Royal Society of Chemistry, 2015)
Lanthanide tungstates (Ln(6)WO(12)) are promising candidates for the development of ceramic hydrogen transport membranes since they exhibit mixed ionic (proton and oxygen ion transport) and electronic conductivity and ...
[EN] Lanthanum tungstate (La6WO12) is a promising material for the development of hydrogen separation membranes, proton ceramic electrolyzer cells and protonic ceramic fuel cells due to its interesting transport properties ...