Small-size and monodispersed red-emitting Pr3+ doped barium molybdate nanocrystals with ultrahigh color purity

RSC Advances ◽  
2016 ◽  
Vol 6 (70) ◽  
pp. 65311-65314 ◽  
Author(s):  
Xuyong Yang ◽  
Fei Huang ◽  
Zhenwei Huang ◽  
Fan Cao ◽  
Jianhua Zhang
Keyword(s):  
Solid Solution ◽  
Solution Method ◽  
Spectral Purity ◽  
Color Purity ◽  
Narrow Linewidth ◽  
Barium Molybdate

Small-size and monodispersed BaMoO4:Pr3+ nanocrystals (NCs) have been prepared by a simple and efficient liquid–solid–solution method. These NCs exhibit narrow-linewidth emission (only ∼4 nm) with high spectral purity in red.

scholarly journals Synthesis and Electrochemical Performance of Graphene Wrapped SnxTi1−xO2Nanoparticles as an Anode Material for Li-Ion Batteries

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Xing Xin ◽  
Xufeng Zhou ◽  
Tao Shen ◽  
Zhaoping Liu
Keyword(s):  
Solid Solution ◽  
Electrochemical Performance ◽  
Anode Material ◽  
Solution Method ◽  
Substitutional Solid Solution ◽  
Li Ion Batteries ◽  
Li Ion ◽  
The Stability ◽  
Ti Content ◽  
Aqueous Solution Method

Ever-growing development of Li-ion battery has urged the exploitation of new materials as electrodes. Here,SnxTi1-xO2solid-solution nanomaterials were prepared by aqueous solution method. The morphology, structures, and electrochemical performance ofSnxTi1-xO2nanoparticles were systematically investigated. The results indicate that Ti atom can replace the Sn atom to enter the lattice of SnO2to form substitutional solid-solution compounds. The capacity of the solid solution decreases while the stability is improved with the increasing of the Ti content. Solid solution withxof 0.7 exhibits the optimal electrochemical performance. The Sn0.7Ti0.3O2was further modified by highly conductive graphene to enhance its relatively low electrical conductivity. The Sn0.7Ti0.3O2/graphene composite exhibits much improved rate performance, indicating that theSnxTi1-xO2solid solution can be used as a potential anode material for Li-ion batteries.

Structures, Dielectric Properties and Luminescence Properties of Nb Doped Li2TiO3 Solid Solution Ceramics

2017 ◽  
Vol 748 ◽  
pp. 137-142 ◽  
Author(s):  
Fei Wang ◽  
Chun Feng Yao ◽  
Qun Zeng ◽  
He Zhou ◽  
Zhi Yong Zhou
Keyword(s):  
Solid Solution ◽  
Dielectric Properties ◽  
Low Temperature ◽  
Solution Method ◽  
Microwave Dielectric Properties ◽  
Luminescence Properties ◽  
Monoclinic Structure ◽  
Small Temperature ◽  
Temperature Coefficients ◽  
Microwave Dielectric

In this article, the low-firing Li2+xNb3xTi1-4xO3(x = 0.01, 0.02, 0.04, 0.06) ceramics with monoclinic structure have been obtained by the traditional solid solution method and their microwave dielectric properties were investigated in detail. The ceramics were finely densified at lower temperatures around 1100 °C and demonstrated favorable dielectric performances including relatively low permittivities (εr) ranging from 19 to 24, high Q×f values up to 60,000 GHz (fres = 7.89GHz) and small temperature coefficients of the resonate frequency (for x = 0.02, τf = 10.4 ppm/ °C; x = 0.06, τf = -11.5 ppm/ °C). Furthermore, the ceramics could be densified at around 900°C with adding low-amount of B2O3. Especially, the 1wt.% B2O3-doped Li2+xNb3xTi1-4xO3 (x = 0.06) ceramics was sintered well-densified at 900°C and presented good microwave dielectric properties with εr ∼ 22.2, Q×f ∼ 44,000 GHz. In addition, these ceramics have luminescence properties, which indicated that the ceramics would be applied in LTCC and/or luminescence applications as new luminescence LTCC (low temperature co-fired ceramics) materials.

scholarly journals High Eu3+ concentration quenching in Y3TaO7 solid solution for orange-reddish emission in photonics

RSC Advances ◽  
2020 ◽  
Vol 10 (29) ◽  
pp. 16917-16927
Author(s):  
Fernanda Hediger Borges ◽  
Fábio José Caixeta ◽  
Rafael Ramiro Pereira ◽  
Silvana Ruella de Oliveira ◽  
Rute A. S. Ferreira ◽  
...  
Keyword(s):  
Solid Solution ◽  
Crystallization Process ◽  
Concentration Quenching ◽  
Color Purity ◽  
High Concentration

Eu3+ ions influence on the crystallization process of Y3TaO7 solid solution and this particular host has presented a high concentration quenching (30 mol%), displaying an intense orange-reddish emission, with color purity over 92.6%.

The Feasibility Research on Producing Lightweight Aggregates Made from the Waste Stone Sludge

2013 ◽  
Vol 343 ◽  
pp. 3-8 ◽  
Author(s):  
Chung Ho Huang ◽  
Chih Hsuan Ho
Keyword(s):  
Solid Solution ◽  
Solution Method ◽  
Particle Density ◽  
Lightweight Aggregate ◽  
Production Method ◽  
Ternary Diagram ◽  
Lightweight Aggregates ◽  
Reservoir Sediments ◽  
Feasibility Research ◽  
Sewer Sludge

This paper aims to investigate on producing lightweight aggregates made from the waste stone sludge. It was utilizing the mechanism of high temperature solid solution method as well as in coordination with the production method of reservoir sediments lightweight aggregates to conduct an investigation on the development of lightweight aggregate using stone sludge. The investigation shows that the analysis results for the stone sludge are not in the limits of the expandable region of the ternary diagram due to the high content of FeOx. That caused the expandable temperature range was narrow, the expandability of aggregate was poor and the aggregate particle density was relatively high. But, it still could be producing lightweight aggregates made from the waste stone sludge in this paper. The better solution may be to add the high-content organic materials to adjust chemical composition, such as water purification sludge, sewer sludge, reservoir sludge etc.

Temperature Dependence of Electric Field Induced Strain in PLZT 9/65/35 Ceramics

2016 ◽  
Vol 675-676 ◽  
pp. 643-646 ◽  
Author(s):  
Siripong Somwan ◽  
Narit Funsueb ◽  
Apichart Limpichaipanit ◽  
Athipong Ngamjarurojana
Keyword(s):  
Mechanical Properties ◽  
Solid Solution ◽  
Electric Field ◽  
Temperature Dependence ◽  
Spontaneous Polarization ◽  
Solution Method ◽  
Michelson Interferometer ◽  
Ferroelectric Materials ◽  
Ferroelectric Ceramics ◽  
Electric Field Induced Strain

In this study, leadbased ferroelectric ceramics Pb0.91La0.09Zr0.65Ti0.35O3 PLZT (9/65/35) were fabricated by solid solution method. The electrical and mechanical properties were measured by modified Michelson interferometer and Sawyer-Tower circuit to investigate electric field induced strain and polarization (s-P-E) of PLZT (9/65/35) at 30-70 °C. The induced strain and polarization were changed when the temperature was increased indicating the change of spontaneous polarization inside the ferroelectric materials.

Nanoporous carbon doped ceria bismuth oxide solid solution for photocatalytic water splitting

2021 ◽  
Author(s):  
Kahkashanan Ansari ◽  
Saurabh Dalela ◽  
Sudhish Kumar ◽  
Neelu Chouhan
Keyword(s):  
Solid Solution ◽  
Water Splitting ◽  
Solid Solutions ◽  
Bismuth Oxide ◽  
Solution Method ◽  
Fluorite Phase ◽  
Doped Ceria ◽  
Carbon Doped ◽  
Oxide Solid Solution ◽  
Highly Porous

A series of carbon-doped solid solutions of ceria bismuth oxide (CBO) was prepared by solid solution method. Highly porous solid solutions crystallized in a fluorite phase and exhibited the enhanced...

scholarly journals PHASE TRANSFORMATIONS DURING CRYSTALLIZATION OF A SOLID SOLUTION OF STRONTIUM-SUBSTITUTED DOUBLE PEROVSKITE

Doklady BGUIR ◽  
2019 ◽  
pp. 73-80
Author(s):  
A. L. Gurskii ◽  
N. A. Kalanda ◽  
M. V. Yarmolich ◽  
I. A. Bobrikov ◽  
S. V. Sumnikov ◽  
...  
Keyword(s):  
Solid Solution ◽  
Solid Phase ◽  
Double Perovskite ◽  
Complex Compounds ◽  
Phase Method ◽  
Barium Strontium ◽  
Initial Stage ◽  
Solid Phase Method ◽  
Increasing Temperature ◽  
Barium Molybdate

The kinetics of phase contents modification in the process of SrBaFeMoO6–δ crystallization from a stoichiometric mixture of SrCO3 + BaCO3 + 0,5Fe2O3 + MoO3 simple oxides using the solid phase method has been investigated. In the temperature region of 300–1200°С, a number of endotermic effects have been detected. Herewith, the first one (with maximum around 552°С) and the third one (with maximum around 743°С) are accompanying by the significant decrease of the mass of specimen. In the temperature range of 946–1200°С, the mass change of specimen is practically not observable, while the thermal effect is still present, and the specimen remains not single-phase one. This indicates the difficulty of the flow of solid phase reactions with the formation of solid solution of barium-strontium ferromolybdate. During analysis of the change of the phase composition consisting of a mixture of initial reagents of stoichiometric relation SrCO3 + BaCO3 + 0,5Fe2O3 + MoO3, it has been observed that with increasing temperature, complex compounds BaMoO4, SrFeO3 appear almost simultaneously, then SrBaFeMoO6–δ appears consequently. Thus, the compounds BaMoO4 и SrFeO3, are structure forming for the solid solution of barium-strontium ferromolybdate. With further temperature increase up to 770°С the formation of new compound ВаFeO3 with disappearing SrFeO3 was detected. In this case, the amount of double perovskite increases faster than that of barium molybdate. The main accompanying compounds at the crystallization of the SrBaFeMoO6–δ double perovskite solid solution are BaMoO4 and SrFeO3. It was established that at the initial stage of the interaction, the resulting solid solution of barium-strontium ferromolybdate is enriched with iron and its composition changes during the reaction in the direction of an increase of the molybdenum content, as in the case of other precursor combinations.

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