Results 71 to 80 of about 6,762 (164)
Advanced Sustainable Systems, Volume 8, Issue 8, August 2024.The Ni/MgO catalysts hydrogenate furfural to a wide range of compounds such as tetrahydrofurfuryl alcohol and pentanodiols. The presence of Ni2+ in the MgO structure facilitates the ring opening of the furanic ring to give PeDs, while Ni0 particles are responsible for the hydrogenation of both the aldehyde group and the double bonds of furfural to give
Rocío Maderuelo‐Solera +5 more
wiley +1 more source
Estudios Geologicos, 1986 La vermiculita estudiada en este trabajo se encuentra en un dique-bolsada de textura pegmatítica situado en el macizo ultramáfico de la Sierra de Aguas (Carratraca, Málaga).
F. J. Luque, M. Rodas, A. Justo Erbez
doaj +1 more source
Quantitative phase Analisis: A comparative study of Mo and Cu strictly monochromatic radiations [PDF]
, 2016 A comparison of the Rietveld quantitative phase analyses (RQPA) obtained using Cu-Kα1, Mo-Kα1, and synchrotron strictly monochromatic radiations is presented.
Cuesta-Garcia, Ana Maria +7 more
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Journal of Applied Crystallography, Volume 57, Issue 4, Page 1067-1084, August 2024.Laboratory powder diffraction and microtomography techniques are sequentially used in the same volume of the same sample to study the process of cement hydration with time.Portland cements (PCs) and cement blends are multiphase materials of different fineness, and quantitatively analysing their hydration pathways is very challenging.
Jaime Fernandez-Sanchez +8 more
wiley +1 more source
Educación Química, 2018 Un problema común en la enseñanza de la cristalografía está asociado con la representación bidimensional de estructuras tridimensionales. Es bien conocido que no todos los estudiantes son capaces de visualizar estructuras en tres dimensiones cuando ...
Isidoro García Cruz +2 more
doaj +1 more source
Supported nickel nitride catalysts for the gas-phase hydrogenation of furfural [PDF]
, 2019 A series of catalysts with different nickel loading (2.5-30 wt%) has been prepared by UGR. The preparation of Ni3N phase was ascertained via Powder X-rays diffraction together with cubic nickel .
Cecilia, Juan Antonio +4 more
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Elastomeric Protein Bioactive Eutectogels for Topical Drug Delivery
Advanced Functional Materials, Volume 34, Issue 18, May 2, 2024.Protein elastomers are fabricated from a bioactive deep eutectic solvent with skin permeation ability. By incorporating a natural polyphenol, a transition from elastic to hyperelastic behavior is detected in these eutectogels driven by the generation of hydrogen‐bonded protein nanodomains. The resulting eutectogels are not skin‐irritating and exhibit a
Matías L. Picchio +10 more
wiley +1 more source
Cloritas dioctaédricas asociadas a piritas en metapelitas de la Sierra de los Cameros
Estudios Geologicos, 1991 Se realiza la caracterización mineralógica y dinámico-vibracional de una clorita dioctaédrica, asociada a los yacimientos de pirita de Navajún en el Wealdense de la Sierra de Los Cameros (La Rioja).
M. P. Mata +4 more
doaj +1 more source
Applications of synchrotron x-ray powder diffraction in hydrated cements: high-resolution and high-pressure studies [PDF]
, 2016 The main aim of this study is to apply synchrotron radiation techniques for the study of hydrated cement pastes. In particular, the tetracalcium aluminoferrite phase, C4AF in cement nomenclature, is the major iron-containing phase in Ordinary Portland ...
Cuesta-Garcia, Ana Maria +4 more
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Green approach to the Isosorbide Conversion into Dimethyl isosorbide [PDF]
, 2017 Isosorbide is one of the most promising products derived from sorbitol. It has already found many applications, mainly in the polymer industry and medicine, such as isosorbide polycarbonate1 (DURABIO®) and isosorbide nitrates as vasodilator for angina ...
Ginés-Molina, María José +3 more
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