Výsledky vyhledávání - "Gabriele Sponchia"

Some crystallographic considerations on the novel orthorhombic ZrO 2 stabilized with Ta doping

Autor: Gabriele Sponchia, Angel L. Ortiz, Pietro Riello, Alvise Benedetti, J. Manuel Perez-Mato, Francisco L. Cumbrera

Publikováno v: Ceramics International. 44:10362-10366

Some crystallographic considerations on the novel orthorhombic ZrO2 (o-ZrO2) stabilized at ambient conditions by Ta substitutional doping are presented. Specifically, how the Ta-doped o-ZrO2 was observed for the first time by conventional X-ray diffr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f6f1ae2a877451773b03842d14abc6f
https://doi.org/10.1016/j.ceramint.2018.03.048

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High-temperature compressive creep of novel fine-grained orthorhombic ZrO 2 ceramics stabilized with 12 mol% Ta doping

Autor: Angel L. Ortiz, Alvise Benedetti, Pietro Riello, Diego Gómez-García, Gabriele Sponchia, Arturo Domínguez-Rodríguez, Bibi Malmal Moshtaghioun

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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A novel fine-grained orthorhombic ZrO2 ceramic stabilized with 12 mol% Ta doping was fabricated by spark-plasma sintering from home-made powders, and its high-temperature mechanical properties evaluated for the first time by compressive creep tests i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60ea5c268eae4ec38e0425be4b333173
https://doi.org/10.1016/j.jeurceramsoc.2017.12.055

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Low-temperature carbon monoxide oxidation over zirconia-supported CuO–CeO2 catalysts: Effect of zirconia support properties

Autor: Aldo Talon, Romana Frattini, Gabriele Sponchia, Antonia Infantes Molina, Enrique Rodríguez-Castellón, Loretta Storaro, Elisa Moretti

Publikováno v: Applied Surface Science. 403:612-622

A study was conducted to investigate the effect of the preparation route of ZrO2 in CuO–CeO2/ZrO2 catalysts for the oxidation of carbon monoxide at low temperature (COX). Four ZrO2 supports were synthetized via either type sol-gel methodology or pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7d5e357caf8f4c6f9c6a9ebc974cdbb
https://doi.org/10.1016/j.apsusc.2017.01.095

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Lanthanide-doped bismuth-based fluoride nanocrystalline particles: Formation, spectroscopic investigation, and chemical stability

Autor: Enrico Trave, Riccardo Ottini, Lorenzo Cassandro, Michele Back, Gabriele Sponchia, Jumpei Ueda, Kazuki Asami, Setsuhisa Tanabe, Emmanuele Ambrosi, Pietro Riello, Davide Cristofori

Bismuth-based fluoride nanocrystalline particles have recently attracted much attention as hosts for luminescent ions such as lanthanides (Ln) being proposed for lighting devices and biological app...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c33966ee8c1425edaf2d545bd95408a8
http://hdl.handle.net/10278/3721838

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Biocompatible tailored zirconia mesoporous nanoparticles with high surface area for theranostic applications

Autor: Gabriele Sponchia, Alvise Benedetti, Anna Del Tedesco, Pietro Riello, Emmanuele Ambrosi, Mohamad Hadla, Concetta Russo Spena, Giuseppe Toffoli, Flavio Rizzolio

Nanocarriers as theranostic agents are under the spotlight in modern nanomedicine, and mesoporous nanomaterials represent a class of devices of major interest. Zirconia is biocompatible, inert with good mechanical and thermal properties for in vivo b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b470d4ed4c73a79f9a1c3a84c34310f
http://hdl.handle.net/11577/3219584

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Monitoring the t → m Martensitic Phase Transformation by Photoluminescence Emission in Eu3+ -Doped Zirconia Powders

Autor: Pietro Riello, Goffredo de Portu, Francesco Enrichi, Enrico Zucchetta, Gabriele Sponchia, Alvise Benedetti, Riccardo Marin

Publikováno v: Journal of the American Ceramic Society 96 (2013): 2628–2635. doi:10.1111/jace.12363
info:cnr-pdr/source/autori:R. Marin, G. Sponchia, E. Zucchetta, P. Riello, F. Enrichi, G. de Portu, A. Benedetti/titolo:Monitoring the t-> m Martensitic Phase Transformation by Photoluminescence Emission in Eu3+-Doped Zirconia Powders/doi:10.1111%2Fjace.12363/rivista:Journal of the American Ceramic Society/anno:2013/pagina_da:2628/pagina_a:2635/intervallo_pagine:2628–2635/volume:96

In this work, we demonstrate that the martensitic t -> m phase transformation of ZrO2 powder stabilized with Eu3+ and Eu3+/Y3+ ions, can be effectively monitored by photoluminescence (PL) spectroscopy. As the luminescent properties of Eu3+ from withi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9fa72b3346990de6199b8395bcde286
https://doi.org/10.1111/jace.12363

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Determining europium compositional fluctuations in partially stabilized zirconia nanopowders: a non-line-broadening-based method

Autor: Pietro Riello, Gabriele Sponchia, Michele Back, Riccardo Marin

Publikováno v: Acta crystallographica Section B, Structural science, crystal engineering and materials. 72(Pt 1)

A method is reported for assessing the compositional fluctuations in a ceramic sample, based only on the determination of the crystalline lattice parameters. Pure tetragonal phase partially stabilized zirconia powders are synthesized through the co-p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77c0e67988f10057e71fd1af069df92f
https://pubmed.ncbi.nlm.nih.gov/26830794

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