Solid Phase Synthesis and Optical Properties of CdTiO3 Submicron Particles from Cd(OH)2 and P25 TiO2

2015 ◽  
Vol 713-715 ◽  
pp. 2868-2871 ◽  
Author(s):  
Jing Li ◽  
Xin Wang ◽  
Yan Chen ◽  
Wen Chang Zhuang
Keyword(s):  
Optical Properties ◽  
Solid Phase ◽  
Cost Effective ◽  
Submicron Particles ◽  
Phase Method ◽  
X Ray Diffraction ◽  
Phase Synthesis ◽  
Transmission Electron ◽  
Composition And Structure ◽  
Solid Phase Method

A simple and cost-effective low temperature (600 oC) solid phase method was proposed for the synthesis of CdTiO3 submicron particles, using Cd (OH)2 and P25 TiO2 as the starting materials. The composition and structure of the as-synthesized CdTiO3 submicron particles were characterized by X-ray diffraction and transmission electron microscopy. Besides, the optical properties of the as-synthesized CdTiO3 submicron particles were characterized by UV-vis diffuse reflection spectrum and photoluminescence spectrum.

Combustion Synthesis of La0.65Sr0.35MnO3 and its Sensing Properties for NO2

2016 ◽  
Vol 680 ◽  
pp. 208-211
Author(s):  
Lian Lian Wu ◽  
Qiang Li ◽  
Dan Yu Jiang ◽  
Jin Feng Xia
Keyword(s):  
Solid Phase ◽  
High Sensitivity ◽  
Combustion Method ◽  
Fast Response ◽  
Size Analysis ◽  
Phase Method ◽  
X Ray Diffraction ◽  
Ultrafine Structure ◽  
Nox Sensor ◽  
Solid Phase Method

In this paper, La0.65Sr0.35MnO3 (LSM) oxide powder with ultrafine structure has been synthesized by self-propagating combustion method. The powders were characterized by X-ray diffraction, scanning electron microscopy and laser size analysis. Compared to the powders prepared by traditional solid-phase method, the grain size of powders prepared by self-propagating combustion method is relatively small and uniform. Starting from ultrafine LSM powders, sensing electrode (SE) for NO2 mixed-potential sensors based on yttria-stablized zirconia (YSZ) was fabricated. As-obtained NO2 sensor displays fast response and high sensitivity (25.4mV/decade). The response values of the sensor have good linear relationship with the logarithm of NO2 concentration varying from 30ppm to 500ppm.Keywords:Self-propagating combustion method; La0.65Sr0.35MnO3; NOx sensor; YSZ

Lignin-assisted solid-phase synthesis of nano-CuO for a photocatalyst with excellent catalytic activity and high performance supercapacitor electrodes

RSC Advances ◽  
2016 ◽  
Vol 6 (70) ◽  
pp. 65644-65653 ◽  
Author(s):  
Xiaohong Wang ◽  
Fangsheng Wu ◽  
Yawei Duan ◽  
Yingying Wang ◽  
Chen Hao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Performance ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Phase Method ◽  
Phase Synthesis ◽  
Solid Phase Method

CuO nanostructures were successfully synthesized using NaOH and Cu(NO3)2 as starting materials by an aminated lignin (AL)-assisted solid-phase method.

Graphitic carbon nitride nanosheets with tunable optical properties and their superoxide dismutase mimetic ability

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92839-92844 ◽  
Author(s):  
Xiangling Ren ◽  
Xianwei Meng ◽  
Jun Ren ◽  
Fangqiong Tang
Keyword(s):  
Superoxide Dismutase ◽  
Optical Properties ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Phase Method ◽  
Solid Phase Method ◽  
Tunable Optical Properties ◽  
Carbon Nitride Nanosheets

Graphitic carbon nitride nanosheets with tunable optical properties are synthesized through a solid-phase method and possess intrinsic superoxide dismutase-like activity.

Solubility of Mn in ZnO Crystallites Synthesized Using Solid State Techniques

2020 ◽  
Vol 3 (1) ◽  
pp. 28-39
Author(s):  
Esau Nii Abekah Akwetey Armah ◽  
Martin Egblewogbe ◽  
Hubert Azoda Koffi ◽  
Alfred Ato Yankson ◽  
Francis Kofi Ampong ◽  
...  
Keyword(s):  
Solid Phase ◽  
Solubility Limit ◽  
Phase Method ◽  
Regular Pattern ◽  
Secondary Phases ◽  
X Ray Diffraction ◽  
X Ray ◽  
Powder Samples ◽  
Solid Phase Method ◽  
Mn Concentration

Powder samples of Zn1-xMnxO nanocrystal were synthesized at a temperature of 200 °C using solid phase method. Dopant concentrations of 0.005 ≤ x ≤ 0.5 were studied. Powder x-ray diffraction (PXRD) patterns of the samples were analyzed with a view of determining the onset of secondary phases, hence the solubility limit of the dopant. The solubility limit for Mn in ZnO samples synthesized at 200 °C is realized at x < 0.3. With a regular pattern in increment of the Mn concentration, there were variations observed in the trend of the relative intensity, 2θ position and d-spacing indicating uneven addition of Mn (thus Mn2+, Mn3+ or Mn4+).

scholarly journals Luminescence Performance of Yellow Phosphor SrxBa1−xTiO3: Eu3+, Gd3+for Blue Chip

2015 ◽  
Vol 2015 ◽  
pp. 1-6
Author(s):  
Limin Dong ◽  
Jian Li ◽  
Qin Li ◽  
Lianwei Shan ◽  
Zhidong Han
Keyword(s):  
Light Emission ◽  
Solid Phase ◽  
Phase Method ◽  
Photoluminescence Excitation ◽  
X Ray Diffraction ◽  
Yellow Light ◽  
X Ray ◽  
Potential Applications ◽  
Solid Phase Method ◽  
Luminescence Performance

The SrxBa1−xTiO3: Eu3+, Gd3+phosphors are synthesized by high temperature solid-phase method. Multiple techniques including X-ray diffraction (XRD), and scanning electron microscopy (SEM) are used to examine the surface morphology and structural properties of SrxBa1−xTiO3: Eu3+, Gd3+phosphors. The optical properties are presented and discussed in terms of photoluminescence (PL) and photoluminescence excitation (PLE) spectra. The as-obtained SrxBa1−xTiO3: Eu3+, Gd3+phosphors show higher PL emission intensity (at 591, 611 nm). The peaks at 591 and 611 nm are attributed to Eu3+  5D0-7F1,5D0-7F2. Gd3+has a strong sensitization on Eu3+. A certain amount of Sr2+and Ba2+is contributed to the intensity of light emission. After being irradiated with blue light, the phosphor samples emit yellow light. This suggests its potential applications in many fields.

Solid-phase synthesis of peptide selenoesters via a side-chain anchoring strategy

2017 ◽  
Vol 53 (39) ◽  
pp. 5424-5427 ◽  
Author(s):  
Cameron C. Hanna ◽  
Sameer S. Kulkarni ◽  
Emma E. Watson ◽  
Bhavesh Premdjee ◽  
Richard J. Payne
Keyword(s):  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Side Chain ◽  
Phase Method ◽  
Phase Synthesis ◽  
Solid Phase Method

A robust, high yielding and epimerisation-free solid-phase method for accessing peptide selenoesters is reported.

Influence of Titanium Ion Doped Amount on the Dielectric Property of BMNT Ceramics

2013 ◽  
Vol 760-762 ◽  
pp. 772-775
Author(s):  
Xin You Huang ◽  
Yuan Zuo ◽  
Chun Hua Gao
Keyword(s):  
Dielectric Property ◽  
Solid Phase ◽  
Pyrochlore Phase ◽  
Volume Density ◽  
Phase Method ◽  
Second Phase ◽  
X Ray Diffraction ◽  
Solid Phase Method ◽  
Ceramic Density ◽  
Sintered Temperature

Bi2(Mgl/3Nb2/3-xTix)2O7(BMNT)(x=0.1, 0.15, 0.2, 0.25) ceramics was prepared by conventional solid phase method, The influence of titanium ion doped amount on the dielectric property and microstructure of BMNT ceramics were systematically studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and other testing and analysis how to methods. Results show that there is single monoclinic pyrochlore phase and there is not the second phase in all BMNT ceramics doped with titanium ion. The grain size of BMNT ceramics increases first and then decreases, the dielectric constant (εr) increases first and then decreases, the dielectric loss (tanδ) increases first and then decreases, the ceramic density decreases all the time while titanium ion doped amount increases. The ceramic density increases first and then decreases when sintered temperature increases. The density of BMNT ceramics doped with titanium ion is biggest when sintered temperature is 980 °C. When sintered temperature is 980 °C and titanium ion doped amount is 0.15mol, the dielectric properties of BMNT ceramics is good,which εris 135(1MHz), tanδ is 0.002(1MHz) and volume density is 7.46g/cm3.

Study on Multi-Doped Ceria-Based Solid Electrolytes

2012 ◽  
Vol 519 ◽  
pp. 28-31
Author(s):  
Yong Li Yao ◽  
Yan Gai Liu ◽  
Zhao Hui Huang ◽  
Ming Hao Fang
Keyword(s):  
Electron Microscopy ◽  
Solid Electrolytes ◽  
Solid Phase ◽  
Synthesis Method ◽  
Fluorite Structure ◽  
Doped Ceria ◽  
X Ray Diffraction ◽  
Phase Synthesis ◽  
Transmission Electron ◽  
Trivalent Cations

Doped ceria-based (Gd0.2Ce0.8O1.9, GDC) solid electrolytes were prepared by Solid-phase synthesis method. The effect of doping bismuth oxide and samarium oxide on the phase and microstructure of GDC was investigated. The phase composition was analyzed by the X-ray diffraction (XRD).The single cubic fluorite structure was observed after doping these oxides. Appearance and microstructure of doped ceria-based solid electrolytes were analyzed by the scanning electron microscopy (SEM) and the transmission electron microscopy (TEM). The results showed that the doped trivalent cations had entered into the ceria structure uniformly. The density, porosity rate and water absorption of GDC were measured by Archimedes principle. It indicated that the density of doped GDC solid electrolyte increased with the rising of sintering temperature.

Structure and Optical Thermometry Characterization of Er3+/Yb3+ Co-Doped BaGd2CuO5

2016 ◽  
Vol 16 (4) ◽  
pp. 3542-3546 ◽  
Author(s):  
Xiaodong Li ◽  
Yanjie Song ◽  
Yanmin Yang ◽  
Chao Mi ◽  
Yanzhou Liu ◽  
...  
Keyword(s):  
Solid Phase ◽  
Green Emission ◽  
Upconversion Emission ◽  
Phase Method ◽  
Excitation Density ◽  
Fluorescence Intensity Ratio ◽  
X Ray Diffraction ◽  
Solid Phase Method ◽  
Fir Technique ◽  
Co Doped

Er3+/Yb3+ co-doped BaGd2CuO5 upconversion luminescent materials are obtained by solid phase method. Rietveld refinement on X-ray diffraction data indicates that Er3+/Yb3+ ions are inclined to occupy the Gd(1) site in the structure of BaGd2CuO5 (green phase). Two green emission peaks located at 523 nm and 547 nm have been produced by the excitation of 971 nm LD. The fluorescence intensity ratio (FIR) of the two green emission peaks have been investigated in the temperature range of 290 K–594 K. The maximum sensitivity derived from the FIR technique of the green upconversion emission is approximately 0.0038 K−1, and it has a high transmission power at low excitation density. This result implies that the Er3+/Yb3+ co-doped BaGd2CuO5 phosphors can play an important role in temperature measurements with a better sensitivity.

scholarly journals Solid-phase synthesis of ytterbium zirconate using mechanical activation

2021 ◽  
Vol 12 (2-2021) ◽  
pp. 154-158
Author(s):  
O. A Kuzmenkov ◽  
◽  
A. M. Kalinkin ◽  
Keyword(s):  
Mechanical Activation ◽  
Solid Phase ◽  
Planetary Mill ◽  
Phase Method ◽  
Stoichiometric Mixture ◽  
Phase Synthesis ◽  
X Ray ◽  
Zirconium Oxides ◽  
Solid Phase Method ◽  
Complex Thermal Analysis

Nanocrystalline ytterbium zirconate Yb4Zr3O12 was prepared by the solid-phase method using mechanical activation of stoichiometric mixture of zirconium and ytterbium oxides. Mechanical activation was carried out in an AGO-2 centrifugal-planetary mill at a centrifugal factor of 40 g for 10 min. The processes occurring during the calcination of the mechanically activated mixture of ytterbium and zirconium oxides in the range from 600 to 1300 °C were investigated using X-ray phase analysis, IR spectroscopy, and complex thermal analysis.

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