Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions

Fábian, Martin; Antić, Bratislav; Girman, Vladimír; Vučinić–Vasić, Milica; Kremenović, Aleksandar; Suzuki, Shigeru; Hahn, Horst; Šepelák, V.

doi:10.1016/j.jssc.2015.06.027

Cited by 25 publications

(15 citation statements)

References 52 publications

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“…The detailed information on the X-ray powder diffraction (XRD) analyses and HR-TEM studies of the mechanosynthesized Ce 1-x Y x O 2-δ solid solutions has been presented in our previous work [24]. In brief, the high-energy ball milling of stoichiometric (1-x)CeO 2 :(x/2)Y 2 O 3 mixtures for 90 min resulted in the formation of Ce 1-x Y x O 2-δ (x ≤ 0.3) solid solutions.…”

Section: Resultsmentioning

confidence: 99%

“…The details of the mechanosynthesis of Ce 1-x Y x O 2-δ (x ≤ 0.3) solid solutions have been published previously [24]. The XPS measurements were performed using an XPS instrument (SPECS) equipped with PHOIBOS 100 SCD and non-monochromatic X-ray source.…”

Section: Methodsmentioning

confidence: 99%

“…It should be noted that the mean free path of photoelectrons in ceria oxides for the Ce 3d signal is about 11 nm [26], leading to the value of the information depth of the XPS measurements of about 33 nm (with the approximation that the information depth is three times that of the mean free path of photoelectrons) [27]. Accordingly, taking into account similar values of the information depth and the particle size of the mechanosynthesized Ce 1-x Y x O 2-δ samples (d G ~ 14-21 nm) [24], it could be assumed that the results of XPS measurements reflects not only the surface and interfacial structural disorder (represented by intrinsic defects and oxygen vacancies) but also the interior structure of the prepared nanoparticles.…”

Section: Composition and Chemical State Of Mechanosynthesized Ce 1-x ...mentioning

confidence: 99%

“…The Ce 3+ content (at.%) and the crystallite size for the mechanosynthesized Ce 1-x Y x O 2-δ determined by XPS and XRD [24], respectively. Lattice parameters and crystallite size as well as estimated values of direct band gap (E d ) and indirect band gap (E i ), derived from UV-Vis-NIR DRS analyses (presented in part 3.2), are also given.…”

Section: Tablementioning

confidence: 99%

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Nanostructure and magnetic anomaly of mechanosynthesized Ce1-xYxO2-δ (x ≤ 0.3) solid solutions

Fábian

Menzel

Yermakov

et al. 2021

Journal of Physics and Chemistry of Solids

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Composition and Chemical State Of Mechanosynthesized Ce 1-x ...mentioning

confidence: 99%

Section: Tablementioning

confidence: 99%

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Nanostructure and magnetic anomaly of mechanosynthesized Ce1-xYxO2-δ (x ≤ 0.3) solid solutions

Fábian

Menzel

Yermakov

et al. 2021

Journal of Physics and Chemistry of Solids

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“…The crystal phases were ascertained using the software of MDI Jade 5.0 and the particle size was calculated from the main diffraction peaks using the Scherrer formula. Further, the lattice constant "a" was calculated using the principal diffraction peak (111) based on the following equation [35]:…”

Section: Characterizationmentioning

confidence: 99%

Relationship between oxygen species and activity/stability in heteroatom (Zr, Y)-doped cerium-based catalysts for catalytic decomposition of CH3SH

Chen

Zhang

et al. 2018

Chinese Journal of Catalysis

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Long‐Term Active Corrosion Protection of Damaged Coated‐AA2024‐T3 by Embedded Electrospun Inhibiting Nanonetworks

Dieleman

Denissen

Garcia

2018

Adv Materials Inter

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the inhibitor from the matrix so unwanted reactions do not take place; and (ii) allow for the controlled release of the inhibitor (controlled kinetics or on-demand release). Many materials, shapes, sizes, and triggers have been developed using this basic principle ranging from microcapsules and nanocapsules relying on delamination to initiate the redox triggered release, to loaded nanosized porous zeolites and halloysite nanotubes where release relies on leaching and ion exchange. [1] Despite the clear success of the concept, two intrinsic limitations can be identified: (i) loading in nanoparticles is limited and bound to carrier-inhibitor pairs; and (ii) inhibitor release at a damage site greatly depends on particle size, release trigger, loading, and distribution. [2] As a consequence the long-term protection and protection at relatively big damages is compromised. [2b] Here we propose an alternative strategy based on the formation of low-density and/or humidity responsive interconnected paths of inhibitor inside the coating (i.e., inhibiting nanonetworks) as a way to overcome the above limitations. Such a strategy is based on recent findings by Hughes et al. [3] who recently attributed high inhibition of Cr(VI)-based coatings to the formation of inhibitor interconnected clusters and low density regions in the coating, thereby confirming previous modelling works. [2] In order to experimentally proof the validity of the concept we used the well-established process of electrospinning as the method to manufacture the responsive nanofiber mats containing corrosion inhibitors to form the inhibiting nano networks in the coatings. During the relatively simple process of electrospinning a membrane or fiber mat of polymeric fibers can be produced by applying an electric field between a spinneret, usually a needle of a syringe filled with polymer solution, and a grounded conductive collector. [4] By controlling the process parameters, spinning setup complexity, and the polymer solution physical properties, a large amount of geometries can be designed making it a suitable process for the design of membranes, drug delivery systems, and carriers of liquid self-healing agents for composites among others. [5] Cu-rich aluminum alloy AA2024-T3 is here used as the substrate to prove the corrosion inhibiting potential of the concept. This highly used aerospace grade aluminum alloy is known for its high corrosion In this work, a new concept is introduced for active corrosion protection at damaged sites aiming at overcoming existing limitations of currently proposed strategies based on dispersed inhibitor-loaded nanocontainers in coatings. The underlying principle is based on the formation of lowdensity and/or humidity responsive interconnected paths of inhibitor in the coating, what is called inhibiting nanonetworks. Such an approach allows for (on-demand) long-term local supply of corrosion inhibitor at the damage site.For the proof-of-concept, water responsive inhibiting nanonetworks based on polyvinyl alcohol and two known...

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Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions

Cited by 25 publications

References 52 publications

Nanostructure and magnetic anomaly of mechanosynthesized Ce1-xYxO2-δ (x ≤ 0.3) solid solutions

Nanostructure and magnetic anomaly of mechanosynthesized Ce1-xYxO2-δ (x ≤ 0.3) solid solutions

Relationship between oxygen species and activity/stability in heteroatom (Zr, Y)-doped cerium-based catalysts for catalytic decomposition of CH3SH

Long‐Term Active Corrosion Protection of Damaged Coated‐AA2024‐T3 by Embedded Electrospun Inhibiting Nanonetworks

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