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Listar por palabra clave "XRD"

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Analytical study of waterlogged ivory from the Bajo de la campana site (Murcia, Spain)

Domenech Carbo, Mª Teresa; Buendía Ortuño, María del Milagro; Pasies Oviedo, Trinidad; Osete Cortina, Laura (Elsevier, 2016)

[EN] This work reports an analytical study conducted prior to the conservation intervention of a collection of elephant tusks excavated from a wreck site of a 600-500 BC Phoenician trading vessel in Bajo de la campana ...
Caracterización estructural y vibracional del compuesto In2Se3 y sus aplicaciones

Gallego Parra, Samuel (Universitat Politècnica de València, 2017-12-27)

In this project, a structural and vibrational characterization under high-pressure of the In2Se3 compound will be carried out using the techniques of X-ray diffraction and Raman spectroscopy, respectively. It will be ...
Effect of Dendritic Side Groups on the Mobility of Modified Poly(epichlorohydrin) Copolymers

TERUEL JUANES, ROBERTO; Pascual-Jose, B.; Graf, R.; Reina, J. A.; Giamberini, M.; Ribes-Greus, A. (MDPI AG, 2021-06-13)

[EN] The macromolecular dynamics of dendronized copolymer membranes (PECHs), obtained by chemical modification of poly(epichlorohydrin) with the dendron 3,4,5-tris[4-(n-dodecan-1-yloxy)benzyloxy] benzoate, was investigated. ...
Effect of Deposition Cycles on the Properties of ZnO Thin Films Deposited by Spin Coating Method for CZTS-based Solar Cells

Aamir Shafi, Muhammad; Bouich, Amal; Fradi, Khawla; Marí-Guaita, Julia; Khan, Laiq; Marí, B. (Elsevier, 2022-05)

[EN] The spin-coating technique was used to make ZnO thin films in this study. To get various thicknesses of ZnO thin film on FTO substrate, the numbers of spin coatings were changed, 2,4,6,8, and 10 times. The polycrystalline ...
Features of microwave fired utilitarian stoneware

Santos, Tiago; Santos, Nuno; Gomes, Celso; Hennetier, Luc; Costa, Vítor; Costa, Luís (Editorial Universitat Politècnica de València, 2019-10-15)

[EN] Both high temperature phases and microstructure transformations of stoneware products microwave and conventionally (gas and electric) fired are investigated aiming at a better understanding of factors affecting their ...
Hardness and Young's modulus distributions in atmospheric plasma sprayed WC-Co coatings using nanoindentation

Rayón Encinas, Emilio; Bonache Bezares, Victoria; Salvador Moya, Mª Dolores; Roa, J. J.; Sánchez, E. (Elsevier, 2011-05-25)

A statistical indentation analysis of WC-Co coatings obtained by atmospheric plasma spray (APS) with two secondary plasma gases, H 2 and He, was investigated using an instrumented indentation technique with the aim of ...
High-Pressure Synthesis of betha and alpha-In2Se3-Like Structures in Ga2S3

Gallego-Parra, Samuel; Vilaplana Cerda, Rosario Isabel; Gomis, O.; Rodríguez-Hernández, Plácida; Muñoz, Alfonso; González, Jesus Antonio; Sans-Tresserras, Juan Ángel; Popescu, Catalin; Manjón, Francisco-Javier (American Chemical Society, 2022-07-12)

[EN] The synthesis of polymorphs of alpha '-Ga2S3 at room temperature on compression/decompression is studied from a joint experimental and theoretical point of view to reveal the nature of their crystalline structures. ...
Incorporation of photoactive TiO2 in an aluminosilicate inorganic polymer by ion exchange

Gasca-Tirado, José Ramón; Manzano Ramirez, Alejandro; Villaseñor-Mora, Carlos; Muñiz-Villarreal, M. S.; Zaldivar-Cadena, A. A.; Rubio-Ávalos, José Carlos; Amigó Borrás, Vicente; Nava Mendoza, Rufino (Elsevier, 2012-05-01)

In the present paper, it is described a procedure to ion exchange in an aluminosilicate inorganic polymer (geopolymer) in order to incorporate photoactive TiO 2. Metakaolin base geopolymers synthesized at 40 and 90 °C were ...
Influence of plasma intensity on wear and erosion resistance of conventional and nanometric WC-Co coatings deposited by APS

Bonache Bezares, Victoria; Salvador Moya, Mª Dolores; García, J.C.; Sánchez, E.; Bannier, E. (ASM International, 2011)

The effects of plasma intensity and powder particle size on wear and erosion resistance have been evaluated for WC-12 wt.%Co coatings deposited by Air Plasma Spraying. Coatings were deposited from micrometric and nanostructured ...
Influence of Zinc Content in Ternary ZnCdS Films Deposited by Chemical Bath Deposition for Photovoltaic Applications

Ullah, Shafi; Ullah, Hanif; Bouhjar, F.; Mollar García, Miguel Alfonso; Marí, B.; Chahboun, Adil (The Electrochemical Society, 2018-07-03)

[EN] Cadmium Zinc Sulfide thin films with different Zn concentration were synthesized in aqueous solution by chemical bath deposition (CBD) method using CdSO4, ZnSO4, CH4N2S for Cd+2, Zn+2, and S¿2 ions source, respectively. ...
Insight into the effect of halogen X in methylammonium lead halide (MAPbX3) spin-coated on zinc oxide film

Kone, Klegayere Emmanuel; Bouich, Amal; Marí-Guaita, Julia; Marí, B.; Soro, Donafologo (Elsevier, 2023-01)

[EN] Herein, we investigated the effect of halogen X in methylammonium lead halide (MAPbX3) where X = (Iodide/ Bromide, or Chloride) deposited by spin coating technique on a zinc oxide layer. The ZnO films were first ...
Microstructure and photocatalytic activity of suspension plasma sprayed TiO2 coatings on steel and glass substrates

Bannier, E.; Darut, G.; Sánchez, E.; Denoirjean, A.; Bordes, M.C.; Salvador Moya, Mª Dolores; Rayón Encinas, Emilio; Ageorges, H. (Elsevier, 2011-10-25)

In this study, TiO 2 coatings were deposited by suspension plasma spraying (SPS) from a commercial TiO 2 nanoparticle suspension on two different substrates: a standard stainless steel and a Pyrex glass. Coatings were ...
Oxidative dehydrogenation of ethane over Ni-W-O mixed metal oxides catalysts

Solsona Espriu, Benjamin Eduardo; López Nieto, José Manuel; Concepción Heydorn, Patricia; Dejoz, A.; Ivars Barceló, Francisco; Vazquez, M. I. (Elsevier, 2011-05-16)

Ni-W-O mixed oxides were prepared through the evaporation of aqueous solutions of nickel nitrate and ammonium tungstate and calcined in air at 500 degrees C for 2 h. The catalysts were characterized by several techniques ...
Petrological characterisation of the 'Barxeta Crema' and 'Buixcarró Rosa' limestones (Valencia, Spain)

Kröner, Stephan Ulrich; Mas Barberà, Xavier; Domenech Carbo, Mª Teresa; Domenech Carbo, Antonio; Roig Salom, José Luis (Instituto Universitario de Restauración del Patrimonio de la UPV, 2007)

Las dos rocas analizadas están localizadas en los municipios de Barxeta (Barxeta crema) y Quatretonda (buixcarró rosa; Sierra de Buixcarró) en la parte sur de la provincia de Valencia. Estas macizas y en su mayoría ...
Preparation and Characterization of SnS thin films by Chemical Spray Pyrolysis for fabrication of solar cells

Sall, Thierno (Universitat Politècnica de València, 2018-01-24)

El objetivo de esta tesis es la síntesis de películas delgadas de SnS utilizando técnicas de bajo coste con el fin de fabricar células solares. Nuestra contribución radica en estudiar nuevos materiales susceptibles de ser ...
Pressure Impact on the Stability and Distortion of the Crystal Structure of CeScO3

Errandonea, Daniel; Santamaria-Perez, David; Martinez-Garcia, Domingo; Gomis, O.; Shukla, Rakesh; Achary, S. Nagabhusan; Tyagi, Avesh K.; Popescu, Catalin (American Chemical Society, 2017)

[EN] The effects of high pressure on the crystal structure of orthorhombic (Pnma) perovskite-type cerium scandate were studied in situ under high pressure by means of synchrotron X-ray powder diffraction, using a ...
Printing with hydrotalcite hybrid nanoclays and dispersed, reactive, direct dyes

López-Rodríguez, Daniel; Micó-Vicent, B.; Jordán-Núñez, Jorge; Moncho-Santonja, María; Bou-Belda, Eva (Elsevier, 2023-02)

[EN] By using nanotechnologies it is possible to colour textile substrates with new printing techniques using dyes that have been discarded from non-exhausted dye baths. Hydrotalcite is clay with a high adsorbent capacity ...
SnS Thin Films Prepared by Chemical Spray Pyrolysis at Different Substrate Temperatures for Photovoltaic Applications

Sall, Thierno; Marí, B.; Mollar García, Miguel Alfonso; Sans-Tresserras, Juan Ángel (Springer-Verlag, 2017)

[EN] The preparation and analysis of morphological, structural, optical, vibrational and compositional properties of tin monosulfide (SnS) thin films deposited on glass substrate by chemical spray pyrolysis is reported ...
Substrate Influences on the Properties of SnS Thin Films Deposited by Chemical Spray Pyrolysis Technique for Photovoltaic Applications

Sall, Thierno; Mollar García, Miguel Alfonso; Marí, B. (Springer Verlag (Germany), 2016-08)

Herein, we report on tin monosulfide (SnS) thin films elaborated by the Chemical Spray Pyrolysis (CSP) technique onto various substrates as simple glass, ITO-, and Mo-coated glasses in order to study the influence of ...
Synthesis of Sr(1-x-y)Al4O7:Eux2+, Lny3+ (Ln= Dy, Y, Pr) Nanophosphors Using Rapid Gel Combustion Process and Their Down Conversion Characteristics

Singh, Devender; Tanwar, Vijeta; Samantilleke, Anura Priyajith; Marí, B.; Bhagwan, Shri; Singh, Krishan Chander; Kadyan, Pratap Singh; Singh, Ishwar (Springer-Verlag, 2017)

[EN] Eu2+ and Eu2++Ln3+ doped SrAl4O7 nanophosphors were synthesized by rapid gel combustion process. The morphology of prepared phosphors was examined with scanning and transmission electron microscopy. The phase ...