نتایج جستجو برای: perchloric acidfunctionalized silica nanosphere

تعداد نتایج: 38929  

2013
Haiyang Dai Bikai Hong Zhifeng Xu Lian Ma Yaowen Chen Yeyu Xiao Renhua Wu

Although the water-soluble metabolite profile of human mesenchymal stem cells is known, the lipid profile still needs further investigation. In this study, methanol-chloroform was used to extract pid-soluble metabolites and perchloric acid was used to extract water-soluble metabolites. Furthermore, a dual phase extraction method using methanol-chloroform and water was used to obtain both water ...

Journal: :Physical review 2021

Raza et al. recently observed the extraordinarily large energy blueshifts of localized surface plasmon resonances and additional in silver nanoparticles encapsulated silicon nitride, which are not fully understood yet. By using quantum model consisting two subsystems respectively for describing center mass intrinsic motions conduction electrons a metallic nanosphere coupling occurred between ou...

2005
Jan M. L. Martin

The heats of formation of HClO4 and Cl2O7 have been determined to chemical accuracy for the first time by means of W1 and W2 theory. These molecules exhibit particularly severe degrees of inner polarization, and as such obtaining a basis-set limit SCF component to the total atomization energy becomes a challenge. (Adding high-exponent d functions to a standard spd basis set has an effect on the...

2005
A. Daniel Boese

DFT (density functional theory) anharmonic force fields with basis sets near the KohnSham limit have been obtained for perchloric acid, HClO4, and perchloric anhydride, Cl2O7. Calculated fundamental frequencies are in very good agreement with available experimental data. Some reassignments in the vibrational spectra of Cl2O7 are proposed based on our calculations. HClO4 and Cl2O7 are particular...

Journal: :Journal of physics 2023

Abstract The electropolishing characteristic curves of rolled 8079 Al alloy in perchloric acid and ethanol solution from -25 °C to 25 are obtained. optimal conditions the with investigated by optical microscope. result shows that lower temperature is, longer time range voltage wider. Furthermore, calibration rate phase after is higher than 97% Electron Back-Scatter Diffraction. effect both cast...

Journal: :GSC Advanced Research and Reviews 2022

Oxidation of Phenyl Thiourea by pyridinium chlorochromate in aqueous DMF medium, containing perchloric acid has been studied. The rate reaction was found to be first order with respect [PCC], [PTU] and [H+]. increase the oxidation acidity indicates involvement a protonated chromium(VI) species rate-determining step. increased dielectric constant medium., which that there is an ion–dipole type i...

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