The preparation of organoboron-based stilbene nanoparticles for cell imaging

2016 ◽  
Vol 4 (33) ◽  
pp. 5515-5518 ◽  
Author(s):  
Huanxiang Yuan ◽  
Lifang Wang ◽  
Shuhong Li ◽  
Haiyan Liang ◽  
Chichong Lu ◽  
...  
Keyword(s):  
Solid State ◽  
Cell Imaging ◽  
Precipitation Method ◽  
Co Precipitation

In this work, a series of nanoparticles were prepared assembled by a highly emissive solid-state organoboron-based stilbene (OBS) and PS-PEG-COOH via regulating the ratio of these two compounds using a co-precipitation method.

scholarly journals Solid-state dye-sensitized solar cells based on Zn1−xSnxO nanocomposite photoanodes

RSC Advances ◽  
2018 ◽  
Vol 8 (42) ◽  
pp. 24059-24067 ◽  
Author(s):  
Ayat Nasr El-Shazly ◽  
Ahmed Esmail Shalan ◽  
Mohamed Mohamed Rashad ◽  
Elsayed Ali Abdel-Aal ◽  
Ibrahim Ahmed Ibrahim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Precipitation Method ◽  
Dye Sensitized ◽  
Zno Nanopowder ◽  
Co Precipitation ◽  
Sensitized Solar Cells

Solid-state dye-sensitized solar cells (ss-DSSCs) comprising Sn2+-substituted ZnO nanopowder were purposefully tailored via a co-precipitation method.

Comparison between Solid State Reaction and Coprecipitation Method of Titanium Oxide Addition on the YBa2Cu3Oδ Ceramics

2020 ◽  
Vol 1010 ◽  
pp. 187-193
Author(s):  
Ali Arlina ◽  
Nadiah Ameram ◽  
Nik Alnur Auli
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Single Phase ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
Orthorhombic Crystal ◽  
Sem Images ◽  
Orthorhombic Crystal Structure ◽  
Oxide Addition ◽  
Co Precipitation

In this work, comparison of TiO2 additions on the physical properties of YBa2Cu3Oδ superconductor system with nominal starting compositions at x= 0, 1, 2, and 5 wt.% was studied derived via solid state reaction and co-precipitation method. The samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The result from XRD shown that all the samples were polycrystalline for solid state reaction, while single phase appear for co-precipitation methods. The intensity of the peak become higher with increasing amount of TiO2 addition indicating the presence of increased amount of the unreacted in the samples. The refine lattice parameters indicated that all the samples have an orthorhombic crystal structure without occurrence of orthorhombic-tetragonal phase transformation. Furthermore, from SEM images for solid state reaction and co-precipitation method showed that the grain size of the samples decreased with TiO2 increased. Small addition of TiO2 derived from co-precipitation method enhanced the YBCO microstructures.

scholarly journals Comparative Study on AC Susceptibility of YBa2Cu3O7−δ Added with BaZrO3 Nanoparticles Prepared via Solid-State and Co-Precipitation Method

Crystals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 655 ◽  
Author(s):  
Nurhidayah Mohd Hapipi ◽  
Jee Lim ◽  
Soo Chen ◽  
Oon Lee ◽  
Abdul Shaari ◽  
...  
Keyword(s):  
Grain Size ◽  
Solid State ◽  
Grain Boundaries ◽  
Ac Susceptibility ◽  
Precipitation Method ◽  
Orthorhombic Crystal ◽  
Orthorhombic Crystal Structure ◽  
Weight Percentage ◽  
Average Grain Size ◽  
Co Precipitation

Polycrystalline samples of YBa2Cu3O7−δ (Y-123) added with x mol% of BaZrO3 (BZO) nanoparticles (x = 0.0, 2.0, 5.0, and 7.0) were synthesized using co-precipitation (COP) and solid-state (SS) method. X-ray diffraction (XRD) patterns showed the formation of Y-123 and Y-211 as the major and minor phases, respectively. The samples prepared using COP method showed higher weight percentage of Y-123 phase (≤98%) compared to the SS samples (≤93%). A peak corresponding to BZO was also found in the samples added with BZO nanoparticles. The increasing intensity of the BZO peak as the BZO amount increased showed the increasing amount of the unreacted nanoparticles in the samples. Refinement of unit cell lattice parameters indicated that all the samples have an orthorhombic crystal structure and there is no orthorhombic-tetragonal phase transformation. As observed using scanning electron microscopy (SEM), all the samples showed randomly distributed grains with irregular shape. The average grain size for the pure sample prepared using COP method is smaller (0.30 µm) compared with that of the pure SS sample (1.24 µm). Addition of 7.0 mol% BZO led to an increase of average grain size to 0.50 μm and 2.71 μm for the COP and SS samples, respectively, indicating grain growth. AC susceptibility (ACS) measurement showed a decrease in the onset critical temperature, Tc-onset with BZO addition. Comparatively, Tc-onset for the COP samples is higher than that of the SS samples. The value of Josephson’s current, Io increased up to 2.0 mol% BZO addition, above which the Io decreased more drastically for the SS samples. The value of Io is 53.95 μA and 32.08 μA for the 2.0 mol% BZO added SS and COP samples, respectively. The decrease of Io is attributed to the distribution of BZO particles at the grain boundaries as also reflected in the drastic decrease of phase lock-in temperature, Tcj. As a result of smaller average grain size, the presence of more grain boundaries containing insulating BZO particles led to lower Io in the COP samples.

scholarly journals Co-Precipitation Synthesis and Electrochemical Properties of NASICON-Type Li1.3Al0.3Ti1.7(PO4)3 Solid Electrolytes

2021 ◽  
Author(s):  
Zhongran Yao ◽  
K.J. Zhu ◽  
Kongjun Zhu ◽  
Jie Zhang ◽  
Xia Li ◽  
...  
Keyword(s):  
Solid State ◽  
High Energy ◽  
High Energy Density ◽  
Precipitation Method ◽  
Total Conductivity ◽  
Oxide Ceramic ◽  
Secondary Phases ◽  
Promising Alternative ◽  
Nasicon Type ◽  
Co Precipitation

Abstract NASICON-type solid-state electrolytes have gathered wide attention to meet the requirements of high-energy-density batteries. In this study, Li1.3Al0.3Ti1.7(PO4)3 (LATP) were synthesized through co-precipitation method. The composition, phase transformation, microstructure and particle size of LATP powder were characterized in detail. Pure LATP without any detectable secondary phases can be obtained at 800 ℃ with size about 590 nm. The relatively dense surface microstructure for LATP ceramics was clearly observed. In addition, the ionic conductivities of LATP pellets increased at first and then decreased with the increased sintering temperature and time. Owing to the highest relative density (95.6%), LATP (sintered at 900 ℃ for 6h, LATP-9006) exhibited a highest total conductivity of 2.19×10− 4 S/cm with a low activation energy of 0.32 eV. The results suggest that co-precipitation synthesized LATP-9006 ceramic electrolyte could be a promising alternative towards achieve a safe solid-state battery. Moreover, the co-precipitation method is suitable for the preparation of other oxide ceramic electrolytes.

Concordantly fabricated heterojunction ZnO–TiO2 nanocomposite electrodes via a co-precipitation method for efficient stable quasi-solid-state dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (125) ◽  
pp. 103095-103104 ◽  
Author(s):  
Ahmed Esmail Shalan ◽  
Ahmed Mourtada Elseman ◽  
Mahmoud Rasly ◽  
Marwa M. Moharam ◽  
Monica Lira-Cantu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Precipitation Method ◽  
Dye Sensitized ◽  
Co Precipitation ◽  
Sensitized Solar Cells ◽  
Nanocomposite Electrodes

ZnO/TiO2 nanocomposites supported on an FTO substrate are used as the photoanode electrode for quasi-solid-state dye-sensitized solar cells.

Preparation of Transparent Nd:Gd2O3-HfO2 Ceramic

2008 ◽  
Vol 368-372 ◽  
pp. 432-434
Author(s):  
Tao Feng ◽  
Jian Lin Shi ◽  
Hai Fang Xu ◽  
Dan Yu Jiang
Keyword(s):  
Heat Capacity ◽  
Optical Properties ◽  
Solid State ◽  
Powder Compact ◽  
Transparent Ceramic ◽  
Precipitation Method ◽  
Synthesis Process ◽  
Laser Material ◽  
State Heat ◽  
Co Precipitation

Nd:Gd2O3-HfO2 powder has been prepared with a co-precipitation method. The size of Nd:Gd2O3-HfO2 powder is near 50nm. Transparent Nd:Gd2O3-HfO2 ceramics were successfully fabricated by sintering the powder compact at 1800°C under H2 atmosphere. The synthesis process and optical properties were investigated in detail. By measuring the optical properties of transparent Nd:Gd2O3-HfO2 ceramics, we found that the absorption bond of Nd ions near 808nm is enlarged, and the FWHM of the emission bond near 1060nm is near 25nm. It was believed that Nd:Gd2O3-HfO2 transparent ceramic is potential laser material for the usage in solid-state heat-capacity laser(SSHCL) application.

Synthesis of Nd:GGG Powder by Liquid Phase Co-Precipitation or Solid State Method and Preparation of its Transparent Ceramic

2014 ◽  
Vol 651-653 ◽  
pp. 119-123
Author(s):  
Xue Jian Zhang ◽  
Chun Li ◽  
De Xin Huang ◽  
Zhuo Fei Lü ◽  
Ying Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Liquid Phase ◽  
Emission Peak ◽  
The Body ◽  
Transparent Ceramic ◽  
Precipitation Method ◽  
Gadolinium Gallium Garnet ◽  
Small Particle Size ◽  
Solid State Method ◽  
Co Precipitation

Neodymium-doped gadolinium gallium garnet (Nd:GGG) precursor and ceramic were prepared by liquid phase co-precipitation or solid-state methods, and the properties were studied. The results indicate that the precursor prepared with the liquid phase co-precipitation method has a small particle size. The sub-transparent ceramic was obtained after the body sintered for 2-3h at 1650°C at 1100Pa using liquid-phase co-precipitation method. When the body was sintered at 1750°C for 2-3h, a sintered body with non-transparency was obtained. The absorption spectrum and fluorescence spectrum of the sub-transparent ceramic were measured with the cross section at 807nm was calculated as1×10-20cm2 and the strongest emission peak located at 1061nm.

Sign in / Sign up

Export Citation Format

Share Document