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Photosensitization of thin SnO2 nanocrystalline semiconductor film electrodes with electron donor-acceptor metallodiporphyrin dyad
(Elsevier Science, 2005-06)
A electron donor-acceptor porphyrin dyad (PZn-P) was synthesized by linking an electron acceptor porphyrin; 5,15-bis(4-carboxyphenyl)-10,20- bis(4-nitrophenyl) porphyrin (P) and an electron donor porphyrin; Zn(II) ...
Mechanochemical synthesis and characterization of nanocrystalline Ni1-xCoxFe2O4 (0 ≤ x ≤ 1) ferrites
(Elsevier Science SA, 2019-11-30)
Magnetic ferrites Ni1-xCoxFe2O4 are synthesized by means of a simple, clean and scalable route consisting of a solid-state reaction induced by high energy ball-milling between metal salts (Lewis'acids) and sodium hydroxide ...
Fracture resistance of textured polycrystalline Zr: A simulation study
(Elsevier, 2019-05)
We report the results of large-scale molecular dynamics atomistic simulations of crack propagation in of α-Zirconium. The samples studied are polycrystalline columnar grains of 11–38 nm average diameter, and different ...
Thermally activated flux creep in nanocrystalline δ-MoN thin films
(Pergamon-Elsevier Science Ltd, 2018-11)
We study the vortex dynamics in a nanocrystalline 420 nm thick δ-MoN film on Si (100). The film was grown at room temperature by reactive sputtering and following it is crystallized by thermal annealing at 973 K for one ...
Inverse hall-petch relationship in nanocrystalline tantalum
(Elsevier Science SA, 2013-09-15)
Tantalum polycrystals (grain sizes varying from 2.5 to 30 nm) generated by Voronoi tessellation were subjected to tension and compression under uniaxial strain loading at strain rates on the order of 108–109 s−1 using ...
Isomerization of n-hexane on Pt-Ni catalysts supported on nanocrystalline H-BEA zeolite
(Elsevier Science, 2011-08)
The zeolite Beta used in this work consists of nanosized crystallites (20-30 nm) aggregates, determined by HRTEM analysis. The influence of the zeolite structure and crystallite size on the desorption rates of linear ...
Small-angle x-ray scattering study of nanocrystalline FeyCu1−y alloys produced by ball milling
(IOP Publishing, 2002-01)
Small-angle x-ray scattering measurements on ball-milled FeyCu1−y giantmagnetoresistivealloys (0.141 y 0.45) have been performed usingsynchrotron radiation. For samples with different nominal compositions,prepared under ...
Structural and magnetic properties of nanocrystalline Bi1-xLaxFeO3 (0.0 ≤ x ≤ 0.4) synthesized by a mechanochemical route
(Pergamon-Elsevier Science Ltd, 2017-11)
Bi1-xLaxFeO3 (0.0 ≤ x ≤ 0.4) powders were prepared by means of a solid acid-base reaction induced by mechanochemical energy. Bi, La and Fe chlorides were high-energy ball-milled with NaOH, yielding a mixture of Bi1-xLaxFeO3 ...
Catalytic performance of Ce1-xLnxOy of nanocrystalline Ln (III-IV)-substituted ceria
(Whioce Publishing, 2018-06)
The activity of several lanthanide promoted Ceria in CO oxidation was studied. Samples were obtained by a high yield and sustainable method by urea thermal decomposition. Precursors basic carbonates,Ce1-xLnx(OH)CO3, being ...
Mechanosynthesis and magnetic properties of nanocrystalline LaFeO3 using different iron oxides
(Pergamon-Elsevier Science Ltd, 2009-05-06)
The synthesis of the orthoferrite LaFeO3 using high-energy ball-milling of La2O3 and Fe3O4 or α-Fe2O3 oxides and subsequent thermal treatments of resulting powders was studied. The phase evolution during the mechanical ...