Results 111 to 120 of about 34,775 (190)

Perspective on Crystal Structures, Synthetic Methods, and New Directions in Thermoelectric Materials

open access: yesSmall Structures
This review explores the state‐of‐the‐art of thermoelectric materials, covering different crystalline structures and material families (e.g., chalcogenides, Zintl phases, skutterudites, clathrates, oxides, half‐Heusler, organic–inorganic composites ...
Marta González‐Barrios   +3 more
doaj   +1 more source

Effect of preparation conditions on the polymorphism and transport properties of lanthanum molybdates [PDF]

open access: yes, 2017
In this work, La6MoO12-based compounds were investigated as part of a new family of materials very competitive as hydrogen separation membranes [1,2]. La5.4MoO11.1 was synthesized by the freeze-drying precursor method and the calcination conditions were
Cabeza-Diaz, Aurelio   +6 more
core  

Synchrotron x-ray pair distribution function: A tool to characterize cement gels [PDF]

open access: yes, 2018
Cement matrices contain large amounts of crystalline phases jointly with amorphous and/or nanocrystalline phases. Consequently, their analyses are very challenging.
Cuesta-Garcia, Ana Maria   +5 more
core  

Quantitative phase Analisis: A comparative study of Mo and Cu strictly monochromatic radiations [PDF]

open access: yes, 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
core  

Cambio de escala en la producción industrial del recubrimiento de zinc níquel con partículas y aditivos. Condiciones óptimas para un material de mayor calidad [PDF]

open access: yes, 2015
Fil:Mahmud, Z. Instituto Nacional de Tecnología Industrial (INTI). Procesos SuperficialesFil:Amelotti, F. Instituto Nacional de Tecnología Industrial (INTI). Procesos SuperficialesFil:Serpi, C.
Amelotti, F.   +6 more
core   +2 more sources

High efficiency cathodes for SOFCs prepared by spray-pyrolysis [PDF]

open access: yes, 2015
In recent years, lowering the operating temper-ature of the Solid Oxide Fuel Cells (SOFCs) to the intermediate temperature range (500-700 ºC) has become the main challenge for this technology.
Dos Santos-Gómez, Lucía   +2 more
core  

Hydration study of Belite-Alite Calcium Sulfoaluminate (BACSA) cement blended with fly ash [PDF]

open access: yes, 2015
The main objective of this work is to understand the effect of the addition of fly ash (0, 15 and 30 wt%) in the hydration of a BACSA cement paste (water/cement=0.4) prepared with 12 wt% of anhydrite. The pastes were characterized, at different hydration
García-Aranda, Miguel Ángel   +4 more
core  

STEM-XEDS spectrokinetic analysis of oxygen: A tool to understand redox processes in nanostructured oxide catalysts [PDF]

open access: yesBIO Web of Conferences
Calvino José J.   +11 more
doaj   +1 more source

Proton conductivity and luminiscence properties of lanthanide aminotriphosphonates [PDF]

open access: yes, 2016
Metal phosphonates are multifunctional solids with tunable properties, such as internal H-bond networks, and high chemical and thermal stability [1]. In the present work, we describe the synthesis, structural characterization, luminescent properties ...
Angeli, Giasemi K.   +9 more
core  

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