نتایج جستجو برای: saed

تعداد نتایج: 368  

Journal: :Catalysts 2021

The green synthesis of inorganic nanoparticles (NPs) using bio-materials has attained enormous attention in recent years due to its simple, eco-friendly, low-cost and non-toxic nature. In this work, silver (AgNPs) gold (AuNPs) were synthesized by the marine algae extract, Sargassum serratifolium (SS). characteristic studies bio-synthesized SS-AgNPs SS-AuNPs carried out ultraviolet–visible (UV–V...

Journal: :Research data journal for the humanities and social sciences 2023

Abstract This dataset presents longitudinal data collected through four surveys (in six-monthly intervals) of fresh university and polytechnic graduates in Nigeria. The were from 21,940 unique young men women who underwent National Youth Service Corps ( nysc ) programme across ten states is a compulsory one-year national service that all Nigerians under the age 30 years must undergo after gradu...

Journal: :Agronomy 2023

In this work, nitrogen- and oxygen-doped fluorescent carbon dots (NOFCDs) were prepared using a simple green hydrothermal carbonization technique. Aqueous ammonia the plant extract of Garcinia mangostana used as source nitrogen carbon, respectively. The NOFCDs examined variety microscopic spectroscopic techniques for physicochemical characterization. Fluorescence UV–visible spectroscopy measure...

Journal: :Electrochem 2021

This work presents a contribution to the study of new Ni-rich spinel cathode material, LiNiMnO4, for Li-ion batteries operating in 5-V region. The LiNiMnO4 compound was synthesized by sol-gel method assisted ethylene diamine tetra-acetic acid (EDTA) as chelator. Structural analyses carried out Rietveld refinements and Raman spectroscopy, selected area electron diffraction (SAED) X-ray photoelec...

Journal: :Journal of Nanomaterials 2022

Considering nutrient delivery and micronutrient use efficiency problems, mesoporous nanosilica (mNs) reduced graphene oxide (rGO)-based iron zinc nanocomposites were formulated. Prepared characterized for FTIR spectroscopy, XRD, FE-SEM, HR-TEM, AAS to examine surface functional groups, morphology, structural composition. XRD spectrum confirmation with SAED image of confirms the polycrystalline ...

Journal: :Coatings 2022

Near-infrared emitting nano-sized particles of ZnGa2−x(Mg/Si)xO4:Cr3+ (x = 0–0.15, termed as ZGMSO:Cr3+) with persistent luminescence were prepared by sol-gel processing followed calcination. The samples tested XRD, TEM, STEM, SAED, Raman, XPS, UV-Vis-NIR, TL, PLE/PL spectroscopy, and decay analysis. Equimolar incorporation Mg2+ Si4+ ions did not change the spindle structure ZnGa2O4 seriously. ...

2013
Shiyong Sun Mingxue Liu Faqin Dong Shenglan Fan Yanchen Yao

The liquid crystalline state is a universal phenomenon involving the formation of an ordered structure via a self-assembly process that has attracted attention from numerous scientists. In this study, the dinoflagellate histone-like protein HCcp3 is shown to induce super-coiled pUC18 plasmid DNA to enter a liquid crystalline state in vitro, and the role of HCcp3 in gene condensation in vivo is ...

2003
ISHMAEL HASSAN SYTLE M. ANTAO

A sample of nepheline from Egan Chute, near Bancroft, Ontario, with a chemical composition (K1.32 0.68)(Na6.05Ca0.22) [Al7.77Si8.21O32], has been studied using single-crystal X-ray diffraction, transmission electron microscopy (TEM), thermal analyses, and powder X-ray diffraction. Its structure was refined in space group P63 to an R1 index of 0.041 on the basis of 737 unique observed reflection...

Journal: :Dalton transactions 2012
Jing Cao Benyan Xu Haili Lin Bangde Luo Shifu Chen

Novel Bi(2)S(3)/BiOI heterostructures were successfully synthesized through a facile and economical ion exchange method between BiOI and thioacetamide (CH(3)CSNH(2)), and characterized by multiform techniques, such as XRD, Raman, FT-IR, XPS, SEM, TEM, HRTEM, SAED, BET and DRS. The obtained Bi(2)S(3)/BiOI photocatalysts showed excellent photocatalytic performance for decomposing organic dye meth...

Journal: :Dalton transactions 2012
Rakesh K Sharma G Kedarnath Amey Wadawale C A Betty B Vishwanadh Vimal K Jain

Reactions of R(2)SnCl(2) (R = Me, Et, (t)Bu) with NaSeC(5)H(3)(R'-3)N (R' = H or Me) gave complexes of the composition [R(2)Sn{2-SeC(5)H(3)(R'-3)N)}(2)], which on treatment with R(2)SnCl(2) afforded chloro complexes, [R(2)Sn{2-SeC(5)H(3)(R'-3)N}Cl]. These complexes were characterized by elemental analyses and UV-vis and NMR ((1)H, (13)C, (77)Se and (119)Sn) spectroscopy. The crystal structures ...

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