Search Results - "Birjega, Ruxandra"

Surface Acoustic Wave Hydrogen Sensors Based on Nanostructured Pd/WO₃ Bilayers by Miu, Dana, Birjega, Ruxandra, Viespe, Cristian

“…The effect of nanostructure of PLD (Pulsed Laser Deposition)-deposited Pd/WO₃ sensing films on room temperature (RT) hydrogen sensing properties of SAW…”
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Mechano-chemical versus co-precipitation for the preparation of Y-modified LDHs for cyclohexene oxidation and Claisen-Schmidt condensations by Pavel, Octavian Dumitru, Stamate, Alexandra-Elisabeta, Zăvoianu, Rodica, Bucur, Ioana Cristina, Bîrjega, Ruxandra, Angelescu, Emilian, Pârvulescu, Vasile I.

“…[Display omitted] •Mechano-chemical route provides an easy procedure for the synthesis of modified Mg3Al0.5Y0.5 LDH.•Y-modified LDH is a composite of different…”
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Ce-Containing MgAl-Layered Double Hydroxide-Graphene Oxide Hybrid Materials as Multifunctional Catalysts for Organic Transformations by Stamate, Alexandra-Elisabeta, Pavel, Octavian Dumitru, Zăvoianu, Rodica, Brezeştean, Ioana, Ciorȋță, Alexandra, Bȋrjega, Ruxandra, Neubauer, Katja, Koeckritz, Angela, Marcu, Ioan-Cezar

“…The combination of layered double hydroxides (LDH) with graphene oxide (GO) enables the formation of nanohybrids with improved properties. This work focuses on…”
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Functional layered double hydroxides and their catalytic activity for 1,4-addition of n-octanol to 2-propenonitrile by Zăvoianu, Rodica, Pavel, Octavian Dumitru, Cruceanu, Anca, Florea, Mihaela, Bîrjega, Ruxandra

“…This contribution concerns the catalytic activity of functional layered double hydroxides (LDHs) for 1,4-addition of n-octanol to 2-propenonitrile aiming to…”
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Impact of Structural Strain in Perovskite Epitaxial Thin Films on Their Functional Properties by Andrei, Florin, Dinescu, Maria, Ion, Valentin, Craciun, Floriana, Birjega, Ruxandra, Scarisoreanu, Nicu Doinel

“…The strain engineering effects induced by different means, e.g., the substrate lattice mismatch and/or chemical doping, on the functional properties of…”
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The Influence of the Preparation Method on the Physico-Chemical Properties and Catalytic Activities of Ce-Modified LDH Structures Used as Catalysts in Condensation Reactions by Stamate, Alexandra-Elisabeta, Zăvoianu, Rodica, Pavel, Octavian Dumitru, Birjega, Ruxandra, Matei, Andreea, Dumitru, Marius, Brezeștean, Ioana, Osiac, Mariana, Marcu, Ioan-Cezar

“…Mechanical activation and mechanochemical reactions are the subjects of mechanochemistry, a special branch of chemistry studied intensively since the 19th…”
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Stearic Acid/Layered Double Hydroxides Composite Thin Films Deposited by Combined Laser Techniques by Birjega, Ruxandra, Matei, Andreea, Marascu, Valentina, Vlad, Angela, Ionita, Maria Daniela, Dinescu, Maria, Zăvoianu, Rodica, Corobea, Mihai Cosmin

“…We report on the investigation of stearic acid-layered double hydroxide (LDH) composite films, with controlled wettability capabilities, deposited by a…”
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Study of the catalytic properties of MgNi(Cu)Al LDH in the one-pot cascade oxidation-Knoevenagel condensation reaction by Stamate, Alexandra-Elisabeta, Pavel, Octavian Dumitru, Zăvoianu, Rodica, Bȋrjega, Ruxandra, Neubauer, Katja, Koeckritz, Angela, Marcu, Ioan-Cezar

“…•Multicationic MgNiCuAl layered double hydroxides were successfully prepared.•They were bifunctional catalysts in the aerobic oxidation/condensation tandem…”
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Enhanced voltammetric response of monosodium glutamate on screen-printed electrodes modified with NiAl layered double hydroxide films by Baciu, Dora Domnica, Bîrjega, Ruxandra, Mărăscu, Valentina, Zăvoianu, Rodica, Matei, Andreea, Vlad, Angela, Cojocaru, Anca, Visan, Teodor

“…Cyclic voltammetry preliminary studies carried out on commercial carbon screen-printed electrodes (SPEs) confirmed an irreversible reduction process of…”
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Epoxidation of Cyclohexene With H₂O₂ and Acetonitrile Catalyzed by Mg-Al Hydrotalcite and Cobalt Modified Hydrotalcites by Ionescu, Rodica, Pavel, Octavian Dumitru, Bîrjega, Ruxandra, Zăvoianu, Rodica, Angelescu, Emilian

“…The paper presents a comparison between the results obtained for cyclohexene epoxidation in the presence of base catalysts: Mg₀/₇₅Al₀.₂₅-hydrotalcite (HT), the…”
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Exploring an alternative route for meixnerite synthesis. The impact of the gaseous environment on the reconstruction of the lamellar structure and the catalytic performances by Pavel, Octavian Dumitru, Zăvoianu, Rodica, Bîrjega, Ruxandra, Angelescu, Emilian, Costentin, Guylene, Che, Michel

“…This work investigates the possibility to obtain the meixnerite structure Mg6Al2(OH)18·4H2O in carbonate-free environment by direct co-precipitation of Mg and…”
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The Influence of the Structural and Morphological Properties of WO3 Thin Films Obtained by PLD on the Photoelectrochemical Water-Splitting Reaction Efficiency by Andrei, Florin, Andrei, Andreea, Birjega, Ruxandra, Sirjita, Eduard Nicolae, Radu, Alina Irina, Dinescu, Maria, Ion, Valentin, Maraloiu, Valentin-Adrian, Teodorescu, Valentin Şerban, Scarisoreanu, Nicu Doinel

“…Due to its physical and chemical properties, the n-type tungsten oxide (WO3) semiconductor is a suitable photoanode for water decomposition reaction. The…”
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Kaolinite Thin Films Grown by Pulsed Laser Deposition and Matrix Assisted Pulsed Laser Evaporation by Dumitrescu, Luminita Nicoleta, Ionita, Eusebiu-Rosini, Birjega, Ruxandra, Lazea-Stoyanova, Andrada, Ionita, Maria-Daniela, Epurescu, George, Banici, Ana-Maria, Brajnicov, Simona, Andrei, Florin, Matei, Andreea

“…In this work, thin films of lamellar clays were deposited by laser techniques (matrix assisted pulsed laser evaporation (MAPLE) and pulsed laser deposition…”
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Transition metal coordination polymers MeX2(4,4'bipyridine) (Me=Co, Ni, Cu; X=Cl―, CH3OCO―, acetylacetonate) selective catalysts for cyclohexene epoxidation with molecular oxygen and isobutyraldehyde by ANGELESCU, Emilian, PAVEL, Octavian D, IONESCU, Rodica, BIRJEGA, Ruxandra, BADEA, Mihaela, ZAVOIANU, Rodica

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Oxidation of tert-butanethiol with air using Mo-containing hydrotalcite-like compounds and their derived mixed oxides as catalysts by Zăvoianu, Rodica, Cruceanu, Anca, Pavel, Octavian Dumitru, Angelescu, Emilian, Dias, Ana Paula Soares, Bîrjega, Ruxandra

“…This contribution presents several aspects concerning the production and characterization of hydrotalcite-like compounds containing Mo-species in the…”
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Hydrotalcite like compounds with low Mo-loading active catalysts for selective oxidation of cyclohexene with hydrogen peroxide by Zǎvoianu, Rodica, Bîrjega, Ruxandra, Pavel, Octavian Dumitru, Cruceanu, Anca, Alifanti, Mihai

“…Several Mo-containing hydrotalcite-like compounds (HTlcs-Mo) were prepared by different ionic exchange procedures using as parent a synthetic hydrotalcite Mg…”
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Tailored texture synthesized LDH catalysts in the presence of quaternary ammonium salts by Cojocaru, Bogdan, Jurca, Bogdan Ciprian, Zăvoianu, Rodica, Bîrjega, Ruxandra, Pârvulescu, Vasile I., Pavel, Octavian Dumitru

“…Tetramethylammonium- and tetrabutylammonium-hydroxides operate as alternative bases to the traditional inorganic ones for the LDH structures synthesis with…”
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Mo-LDH-GO Hybrid Catalysts for Indigo Carmine Advanced Oxidation by Pavel, Octavian Dumitru, Stamate, Alexandra-Elisabeta, Zăvoianu, Rodica, Cruceanu, Anca, Tirsoaga, Alina, Bîrjega, Ruxandra, Brezeștean, Ioana Andreea, Ciorîță, Alexandra, Culiță, Daniela Cristina, Dias, Ana Paula Soares

“…This paper is focused on the utilization of hybrid catalysts obtained from layered double hydroxides containing molybdate as the compensation anion (Mo-LDH)…”
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Lead-Free Perovskite Thin Films for Gas Sensing through Surface Acoustic Wave Device Detection by Enea, Nicoleta, Ion, Valentin, Viespe, Cristian, Constantinoiu, Izabela, Bonciu, Anca, Stîngescu, Maria Luiza, Bîrjega, Ruxandra, Scarisoreanu, Nicu Doinel

“…Thin film technology shows great promise in fabricating electronic devices such as gas sensors. Here, we report the fabrication of surface acoustic wave (SAW)…”
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Green Epoxidation of Olefins with ZnxAl/MgxAl-LDH Compounds: Influence of the Chemical Composition by Rodica Zăvoianu, Anca Cruceanu, Octavian Dumitru Pavel, Corina Bradu, Mihaela Florea, Ruxandra Bîrjega

“…This contribution concerns the effect of the chemical composition of the brucite-type layer of bi-cationic LDH materials ZnxAl and MgxAl (x = 2–5) and…”
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