Results 11 to 20 of about 30,580 (243)

Facile and Direct Preparation of Ultrastable Mesoporous Silica with Silver Nanoclusters: High Surface Area

open access: yesChemistryOpen, 2020
We report the successful direct synthesis of an ultrastable mesoporous silicon dioxide framework containing silver nanoclusters using a modified true liquid crystal templating method.
Dr. Tariq Aqeel, Prof. Ali Bumajdad
doaj   +1 more source

Structural Studies of Aluminated form of Zeolites—EXAFS and XRD Experiment, STEM Micrography, and DFT Modelling

open access: yesMolecules, 2021
In this article, the results of computational structural studies on Al-containing zeolites, via periodic DFT + D modelling and FDM (Finite Difference Method) to solve the Schrödinger equation (FDMNES) for XAS simulations, corroborated by EXAFS (Extended ...
Gabriela Jajko   +6 more
doaj   +1 more source

Generation and recovery of strain in (28)Si-implanted pseudomorphic GeSi films on Si(100) [PDF]

open access: yes, 1992
Effects of ion implantation of 320 keV Si-28 at room temperature in pseudomorphic metastable GexSi1-x (x almost-equal-to 0.04, 0.09, 0.13) layers approximately 170 nm thick grown on Si(100) wafers were characterized by x-ray double-crystal diffractometry
Bai, G., Nicolet, M.-A.
core   +1 more source

Rapid Analysis of Feldspar by X-ray Diffractometry Rietveld Refinement Method

open access: yesYankuang ceshi, 2017
The content of minerals in feldspar can be calculated by chemical analytical results, but the analytical process is long and the calculation process is complex.
RAN Jing, DU Gu, WANG feng-yu
doaj   +1 more source

Swelling and Salt Formation in Ibuprofen and Tranexamic Acid-Containing Tablets during High-Temperature Storage

open access: yesCrystals, 2022
Ibuprofen (IBP)- and Tranexamic acid (TXA)-containing tablets are known to swell when stored at high temperatures, but the mechanism of swelling is unknown.
Yuto Kawano   +6 more
doaj   +1 more source

Kinetic and structural aspects of tantalum hydride formation [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
Tantalum hydrides of various composition were synthesized by equilibrating tantalum with hydrogen at six different temperatures from 573 to 823 K under a constant hydrogen pressure of 1 bar.
Simonović B.R.   +2 more
doaj   +3 more sources

Thermal reaction of Pt film with 110 GaN epilayer [PDF]

open access: yes, 1999
Backscattering spectrometry, x-ray diffractometry, and scanning electron microscopy have been used to study the reaction of a thin Pt film with an epilayer of [110] GaN on [110] sapphire upon annealing at 450, 550, 650, 750, and 800 degrees C for 30 min.
Gasser, S. M.   +2 more
core   +1 more source

RF magnetron sputtered perovskite-oriented PSZT thin films on gold for piezoelectric and ferroelectric transducers [PDF]

open access: yes, 2006
Conditions for depositing perovskite-oriented Pb0.92Sr0.08(Zr0.65Ti0.35) O-3 thin films on gold by RF magnetron sputtering are investigated. Deposition results were analysed by scanning electron microscopy, X-ray photoelectron spectroscopy and X-ray ...
Bhaskaran, M, Holland, A, Sriram, S
core   +1 more source

Stability and Phase Transitions of Nontoxic γ-Cyclodextrin-K+ Metal-Organic Framework in Various Solvents

open access: yesCrystals, 2020
Cyclodextrin (CD) has been used to prepare biocompatible and nontoxic metal-organic frameworks (MOFs) suitable for biomedical applications as drug carriers.
Kristīne Krūkle-Bērziņa   +3 more
doaj   +1 more source

Thermal behavior of corn starch granules modified by acid treatment at 30 and 50°C

open access: yesEclética Química, 2018
Unprocessed native starches are structurally too weak and functionally too restricted for application in today’s advanced food technologies. Processing is necessary to engender a range of functionality.
Cleoci Beninca   +5 more
doaj   +1 more source

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