• Oxide Stabilized Lanthanide

    Bismuth oxide, when stabilized in the facecentered cubic phase by lanthanide doping, has one of the highest oxygenion conductivities among all solid oxide electrolytes.We previously reported a timedependent aging phenomenon in phasestabilized bismuth oxides that involves ordering of the anion sublattice, as distinct from a.

  • Lanthanum Oxides - an overview ScienceDirect Topics

    The lanthanide oxides are characterized by chemical stability and high melting points. Thus, cerium dioxide melts at about 2500°C and lanthanum oxide at above 2000°C. The lanthanide hydroxides, Ln(OH) 3, have an alkaline nature and are weakly soluble in water and alkalis. The pH at which they are precipitated decreases from 7.62 for cerium to ...

  • Synthesis and Characterization of Citrate and Polymer ...

    Stabilized Lanthanide Trifluoride Nanoparticles Rohan Alvares Master of Science Department of Chemistry University of Toronto 2009 ... MPION micrometer-sized paramagnetic iron oxide nanoparticle MRI magnetic resonance imaging MS-325 a small molecule

  • Author: Rohan Alvares
  • Vickers hardness study of zirconia partially stabilized ...

    Materials Chemistry and Physics 53 i 1998) 48-54 ELSEVIER Vickers hardness study of zirconia partially stabilized with lanthanide group oxides Salah-ud Din *, A. Kaleem Received 7 October 1997: received in revised form 21 October 1997: accepted 24 October 1997 Abstract Vickers hardness of partially stabilized zirconia obtained by the addition of ceria, dysprosia, gadolinia and lanthana to ...

  • Cited by: 17
  • Synthesis and Applications of Lanthanide Sulfides and Oxides

    The lanthanide series of metals were some of the last elements to be discovered and isolated. The discovery of the first lanthanides, lanthanum and cerium, is credited to Mosander ~1840 CE, isolated from previously discovered cerium earths 1. However, it took close to a hundred years for the remaining lanthanide elements to be isolated and

  • Cited by: 2
  • Lanthanide Series - an overview ScienceDirect Topics

    The nature of the lanthanide optical transitions varies from pure magnetic dipole to pure electric dipole, and mixtures of the two. For instance, the emission spectrum of the Eu 3 + ion is strongly influenced by the site symmetry. The main emissions of this ion occur from the 5 D 0 to the 7 F J (J = 0–6) levels. The 5 D 0 → 7 F 1 transition is a pure magnetic dipole transition, essentially ...

  • SIMS analysis of multi-diffusion profiles of lanthanides ...

    1. Introduction. Stabilized zirconias (YSZ: ZrO 2 +Y 2 O 3, CSZ: ZrO 2 +CaO or ScSZ: ZrO 2 +Sc 2 O 3) are used as an electrolyte material in solid oxide fuel cells.Their long-term stability is governed by the slow diffusion of the cations, the mechanism of which is still not yet fully understood but it is assumed that it is governed by the relative ionic radius of the cations .

  • Structural Stability and Conductivity of Phase‐Stabilized ...

    Dec 21, 2004  Bismuth oxide, when stabilized in the face‐centered cubic phase by lanthanide doping, has one of the highest oxygen‐ion conductivities among all solid oxide electrolytes. We previously reported a time‐dependent aging phenomenon in phase‐stabilized bismuth oxides that involves ordering of the anion sublattice, as distinct from a ...

  • (PDF) Lanthanides - ResearchGate

    Position of the lanthanoids (lanthanides) and rare earths in the Periodic Table with picture of the black stone of Ytterby from which yttrium oxide was isolated and the portrait of Johan Gadolin.

  • Effect of oxygen sublattice order on conductivity in ...

    The high temperature cubic bismuth oxide stabilized with Lanthanide dopants undergoes an order–disorder transition of the anion sublattice at about 600 °C. Above the transition temperature the conductivity exhibits a low activation energy (E A ) due to the disordered anion sublattice, and below the transition temperature the conductivity ...

  • Mixed lanthanide oxide nanoparticles as dual imaging agent ...

    There is a continuing research interest in mixed lanthanide oxide nanoparticles because they have both magnetic and fluorescent properties useful for dual imaging in biomedicine 1,2,3,4,5,6,7,8,9,10.By using different lanthanide ions in synthesis, a variety of mixed lanthanide oxide nanoparticles can be

  • Ionic Conducting Lanthanide Oxides Chemical Reviews

    A sol–gel methodology for the preparation of lanthanide-oxide aerogels: preparation and characterization. Journal of Sol-Gel Science and Technology 2012 , 64 (2) , 381-389.

  • Lanthanum Strontium Manganite (LSM) - Yttria Stabilized ...

    50% Lanthanum Manganite doped with Strontium Oxide - 50% Yttria Stabilized Zirconium Oxide Composite Fuel Cell Cathode Linear Formula: 50% (La 0.80 Sr 0.20 ) Mn 0 3-x /

  • Mixed lanthanide oxide nanoparticles as dual imaging agent ...

    Nov 13, 2013  There is a continuing research interest in mixed lanthanide oxide nanoparticles because they have both magnetic and fluorescent properties useful for dual imaging in biomedicine 1,2,3,4,5,6,7,8,9 ...

  • Lanthanide - Wikipedia

    The lanthanide (/ ˈ l æ n θ ə n aɪ d /) or lanthanoid (/ ˈ l æ n θ ə n ɔɪ d /) series of chemical elements comprises the 15 metallic chemical elements with atomic numbers 57–71, from lanthanum through lutetium. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements.. The informal chemical symbol Ln ...

  • "An Examination of Lanthanide Additives on the Performance ...

    The effect of various lanthanide additives on the performance of Cu-YSZ (yttria-stabilized zirconia), cermet anodes for solid-oxide fuel cells (SOFCs) was investigated at 973 K for H2 and the direct oxidation of butane. In all cases, the lanthanide oxides were added to the SOFC by impregnation of a porous YSZ matrix with aqueous solutions of the nitrate salts, followed by decomposition of ...

  • Lanthanide transport in stabilized zirconias ...

    The diffusion of all stable lanthanides was measured both in calcia stabilized zirconia (CSZ) and in yttria stabilized zirconia (YSZ) in the temperature range between 1286 and 1600 °C. The lanthanide diffusion coefficients obtained increase with increasing ionic

  • Lanthanide Nanoparticles: From Design toward Bioimaging ...

    Intentional anion incorporation to rationally modulate the size, shape and optical properties of lanthanide oxide nanocrystals. Nanoscale 2019, 11 (12) , 5633-5639. DOI: 10.1039/C8NR10472G. Lei Lei, Xiaoru Dai, Yao Cheng, Yuansheng Wang, Zhen Xiao, Shiqing Xu.

  • Lanthanide-Dipicolinic Acid Coordination Driven Micelles ...

    Lanthanide-incorporated polymer micelles have been prepared driven by the lanthanide-dipicolinic acid (Ln-DPA) coordination. The terdentate DPA ligand is grafted to the PVP block of a diblock copolymer poly(4-vinylpyridine)-b-poly(ethylene oxide) (P4VP48-b-PEO193). Upon addition of Eu(III) ions to a solution of the DPA16-g-P4VP48-b-PEO193 block copolymer, intermolecular cross-links form and ...

  • Lanthanide transport in stabilized zirconias ...

    The diffusion of all stable lanthanides was measured both in calcia stabilized zirconia (CSZ) and in yttria stabilized zirconia (YSZ) in the temperature range between 1286 and 1600 °C. The lanthanide diffusion coefficients obtained increase with increasing ionic

  • Lanthanide Nanoparticles: From Design toward Bioimaging ...

    Intentional anion incorporation to rationally modulate the size, shape and optical properties of lanthanide oxide nanocrystals. Nanoscale 2019, 11 (12) , 5633-5639. DOI: 10.1039/C8NR10472G. Lei Lei, Xiaoru Dai, Yao Cheng, Yuansheng Wang, Zhen Xiao, Shiqing Xu.

  • Lanthanide-Dipicolinic Acid Coordination Driven Micelles ...

    Lanthanide-incorporated polymer micelles have been prepared driven by the lanthanide-dipicolinic acid (Ln-DPA) coordination. The terdentate DPA ligand is grafted to the PVP block of a diblock copolymer poly(4-vinylpyridine)-b-poly(ethylene oxide) (P4VP48-b-PEO193). Upon addition of Eu(III) ions to a solution of the DPA16-g-P4VP48-b-PEO193 block copolymer, intermolecular cross-links form and ...

  • Ytterbium(III) oxide - WikiMili, The Free Encyclopedia

    Thulium is a chemical element with symbol Tm and atomic number 69. It is the thirteenth and third-last element in the lanthanide series. Like the other lanthanides, the most common oxidation state is +3, seen in its oxide, halides and other compounds; because it occurs so late in the series, however, the +2 oxidation state is also stabilized

  • Scandium, Yttrium and the Lanthanides: Applications ...

    New applications are increasingly found for scandium, yttrium, and the lanthanides and their compounds. Among reagents in synthetic organic chemistry, LaNi 5 is a versatile hydrogenation catalyst. SmI 2 is an important one‐electron reducing agent, and lanthanide triflates, Ln(CF 3 OSO 3) 3 (Ln = Sc, Y, or lanthanide), are recyclable Lewis acid catalysts, which operate in aqueous conditions.

  • Lanthanum - Wikipedia

    Lanthanum is a chemical element with the symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air and is soft enough to be cut with a knife. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype.

  • Lanthanum oxide - WikiMili, The Free Encyclopedia

    Apr 16, 2019  Lanthanum is a chemical element with symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype.

  • Lanthanum oxide - Wikipedia

    Lanthanum oxide, also known as lanthana, chemical formula La 2 O 3, is an inorganic compound containing the rare earth element lanthanum and oxygen.It is used in some ferroelectric materials, as a component of optical materials, and is a feedstock for

  • Novel lanthanide-labeled metal oxide nanoparticles improve ...

    Gadolinium oxide is an ideal host material to support strong optical emission from the lanthanide Europium ion, and has a similar zeta potential to other commonly occurring or engineered metal oxide nanomaterials. Hence, in addition to the relevance to some of the technological applications of Gadolinium oxidesper se, Eu:Gd 2O

  • Atomic Layer Deposition of Lanthanum Stabilized Amorphous ...

    Hafnium dioxide deposited on n-Si(100) by atomic layer deposition (ALD) was incorporated with La2O3 to stabilize the amorphous phase during high-temperature annealing. The incorporation of La was achieved by depositing HfO2 and La2O3 in different ALD cycles that likely produced a HfO2−HfLaxOy periodic structure. X-ray photoelectron spectroscopy compositional analysis shows that the Hf and La ...

  • Preparation of stabilized alumina having enhanced ...

    Jan 14, 1997  The stabilizer can be an oxide of barium, an oxide of a lanthanide metal such as lanthanum, cerium, etc., a compound of barium which is converted to an oxide upon heating at an elevated temperature or a compound of a lanthanide metal which is converted to an oxide at an elevated temperature.

  • Structural Stability and Conductivity of Phase‐Stabilized ...

    Bismuth oxide, when stabilized in the face‐centered cubic phase by lanthanide doping, has one of the highest oxygen‐ion conductivities among all solid oxide electrolytes. We previously reported a time‐dependent aging phenomenon in phase‐stabilized bismuth oxides that involves ordering of the anion sublattice, as distinct from a ...

  • Atomic Layer Deposition of Lanthanum Stabilized Amorphous ...

    Hafnium dioxide deposited on n-Si(100) by atomic layer deposition (ALD) was incorporated with La2O3 to stabilize the amorphous phase during high-temperature annealing. The incorporation of La was achieved by depositing HfO2 and La2O3 in different ALD cycles that likely produced a HfO2−HfLaxOy periodic structure. X-ray photoelectron spectroscopy compositional analysis shows that the Hf and La ...

  • Preparation of stabilized alumina having enhanced ...

    Jan 14, 1997  The stabilizer can be an oxide of barium, an oxide of a lanthanide metal such as lanthanum, cerium, etc., a compound of barium which is converted to an oxide upon heating at an elevated temperature or a compound of a lanthanide metal which is converted to an oxide at an elevated temperature.

  • Structural Stability and Conductivity of Phase‐Stabilized ...

    Bismuth oxide, when stabilized in the face‐centered cubic phase by lanthanide doping, has one of the highest oxygen‐ion conductivities among all solid oxide electrolytes. We previously reported a time‐dependent aging phenomenon in phase‐stabilized bismuth oxides that involves ordering of the anion sublattice, as distinct from a ...

  • Novel lanthanide-labeled metal oxide nanoparticles improve ...

    The use of lanthanide/rare earth doping of metal oxide nanoparticles has proven to be highly effective as a measure of dose and translocation in vivo. The particles are relatively simple to synthesize and the method is well suited to eventual application to inhalation studies. The very high sensitivity of ICP-MS offers a host of new ...

  • Lanthanide-Doped Nanocrystals: Synthesis, Optical-Magnetic ...

    Because of the potential applications of lanthanide-doped nanocrystals in display devices, optical communication, solid-state lasers, catalysis, and biological labeling, the controlled synthesis of these new nanomaterials has sparked considerable interest. Nanosized phosphorescent or optoelectronic devices usually exhibit novel properties, depending on their structures, shapes, and sizes, such ...

  • Lanthanum oxide la2o3 powder by nanotechnology - Issuu

    Jan 10, 2016  Lanthanide zirconates are used for their catalytic and conductivity properties and lanthanum stabilized zirconia has useful electronic and mechanical properties. ... lanthanum oxide

  • Method of electrode fabrication for solid oxide ...

    A low cost, lanthanide-substituted, dimensionally and thermally stable, gas permeable, electrically conductive, porous ceramic air electrode composition of lanthanide-substituted doped lanthanum manganite is provided which is used as the cathode in high temperature, solid oxide

  • Entropy-stabilized oxides

    X-ray diffraction patterns for entropy-stabilized oxide formulation E1. Reversibility is a requirement of entropy-driven transitions. Consequently, low-temperature equilibration should transform homogeneous 1,000 °C-equilibrated E1 back to its multiphase state (and vice versa on heating).

  • (PDF) Lanthanide transport in stabilized zirconias ...

    The diffusion of all stable lanthanides was measured both in calcia stabilized zirconia (CSZ) and in yttria stabilized zirconia (YSZ) in the temperature range between 1,286 and 1,600 degrees C.

  • Yttria Stabilized Zirconia Nanoparticles Less Price High ...

    Yttria Stabilized Zirconia Nanoparticles: Nanoparticles of a metal compound, e.g., a metal oxide, a doped metal compound, and a metal complex, are widely used in the fields of chemical catalysts, optoelectronic materials, optical materials, sensor materials, flame retardant materials, electrode materials and others.

  • Entropy-stabilized oxides Nature Communications

    Sep 29, 2015  Figure 1: X-ray diffraction patterns for entropy-stabilized oxide formulation E1. E1 consists of an equimolar mixture of MgO, NiO, ZnO, CuO and CoO. The patterns were collected from a

  • Activity and Stability of (Pr1-xNdx)2NiO4+δ as Cathodes ...

    Phase instability in praseodymium nickelates is a major concern for the long-term operations of solid oxide fuel cells since it may lead to the performance degradation. In this work, praseodymium nickelates (ex. Pr 2 NiO 4+δ) have been stabilized via substitution on both Pr- and Ni-sites. Systematic studies over a wide range of compositions ...