Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Nuria Sánchez-Pastor"'
Publikováno v:
Crystals, Vol 14, Iss 7, p 635 (2024)
The present study showcases a series of crystallization experiments using a specially designed double diffusion system to grow crystals belonging to the calcium carbonate–phosphate system. The experimental U-shaped device comprised two vertical sol
Externí odkaz:
https://doaj.org/article/f26eb4c5f09b41e38e8915602c560bb1
Autor:
Bernhard Pracejus, Ivan Callegari, André Filipe Jorge Pinto, Nuria Sánchez-Pastor, Andreas Scharf
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-14 (2020)
E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
Rutile, a common accessory mineral in a wide variety of rocks, is the most stable naturally occurring TiO2 polymorph. The relationship between its trace element composition and formation conditions has provided geoscientists with discriminant tools f
Autor:
Melanie Kaliwoda, Christoph Mayr, Lurdes Fernández-Díaz, José Manuel Astilleros, Markus Oehlerich, Nuria Sánchez-Pastor, Wolfgang W. Schmahl
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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Ikaite (CaCO3·6H2O) is a metastable phase that crystallizes in nature from alkaline waters with high phosphate concentrations at temperatures close to 0 °C. This mineral transforms into anhydrous calcium carbonate polymorphs when temperatures rise
Publikováno v:
Geochimica et Cosmochimica Acta. 164:221-235
Interest in chromium (Cr) isotope incorporation into carbonates arises from the observation that Cr isotopic composition of carbonates could be used as a paleoclimate proxy to elucidate past fluctuations of oxygen contents in atmosphere and hydrosphe
Autor:
Wolfgang W. Schmahl, Andreas Ziegler, Fitriana Nindiyasari, José Manuel Astilleros, Erika Griesshaber, Lurdes Fernández-Díaz, Nuria Sánchez-Pastor
Publikováno v:
Crystal Growth & Design. 14:4790-4802
Carbonate biominerals are nanocomposites with an intimate association of organic and mineral components. Here we investigate the crystallization of CaCO3 in gelatin hydrogels (2.5 and 10 wt % solid content) in the presence of Mg (0.01 M) in the growt
Autor:
Ana Jéssica Pinto, Lurdes Fernández-Díaz, Nuria Sánchez-Pastor, José Manuel Astilleros, Mário A. Gonçalves
Publikováno v:
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
Crystals of phases belonging to the autunite group (general formula X2+(UO2)2(X5+O4)2⋅nH2O), specifically the uranyl phosphates (X5+ = P) metauranocircite (X2+ = Ba2+), metatorbernite (X2+ = Cu2+) and a barian metatorbenite phase (X2+ = Cu2+/Ba2+),
Publikováno v:
E-Prints Complutense. Archivo Institucional de la UCM
instname
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Vaterite aggregates grown in Cr(VI)-bearing silica gel were studied by combining scanning electron microscopy and Raman spectroscopy. All the vaterite samples were spherical aggregates consisting of lens-shaped individuals, and their morphology was d
Publikováno v:
Geochimica et Cosmochimica Acta. 74:1954-1962
Hydrothermal atomic force microscopy (HAFM) was used to investigate K + –Na + ion exchange in phlogopite in-situ. The exchange of K + for Na + caused the interlayer distance to swell by approximately 5 A. A distinct reaction front could be resolved
Publikováno v:
Surface Science. 600:1369-1381
The growth of barite {001} and {210} faces from aqueous solutions moderately supersaturated with respect to barite (βbarite ≈ 12 for experiments on {001} surfaces and βbarite ≈ 7 for experiments on {210} surfaces) and bearing different concentr
Autor:
Lurdes Fernández-Díaz, Fitriana Nindiyasari, Erika Griesshaber, José Manuel Astilleros, Wolfgang W. Schmahl, Nuria Sánchez-Pastor
Publikováno v:
E-Prints Complutense. Archivo Institucional de la UCM
instname
instname
We investigated the influence of the porosity of the growth medium on the crystallization of calcium carbonate in hydrogels with different gelatin solid contents (2.5, 5, and 10 wt %). In all experiments, the precipitate consisted of calcite with occ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccca89d09f29518c7f3490aea7a20ce4
https://eprints.ucm.es/id/eprint/69750/1/cg401056t-1.pdf
https://eprints.ucm.es/id/eprint/69750/1/cg401056t-1.pdf