Characterization of Cellulose Nanocrystals Produced via Acid Hydrolysis Method

20th International Metallurgy and Materials Congress - IMMC 2021


Characterization of nanostructured magnetite thin films produced by sol-gel processing
Eken, Ali Erdem; Özenbaş, Ahmet Macit (2009-06-01)
Nanocrystalline films of magnetite have been prepared by a novel sol-gel route in which, a solution of iron (III) nitrate dissolved in ethylene glycol was applied on glass substrates by spin coating. Coating solution showed Newtonian behaviour and viscosity was found as 0.0215 Pa.s. Annealing temperature was selected between 291 and 350 A degrees C by DTA analysis in order to obtain magnetite films. In-plane grazing angle XRD and TEM studies showed that magnetite phase was present upon annealing the films a...
Characterization of CuIn0.7Ga0.3Se2 Thin Films Deposited by Single Stage Thermal Evaporation Process
Karaağaç, Hakan; Peksu, Elif; Behzad, Hamed; Akgoz, Sare; Parlak, Mehmet (2017-05-26)
Single phase CuIn0.7Ga0.3Se2 (CIGS) thin films are successfully deposited on glass substrates via a single stage thermal evaporation from a stoichiometric powder of CIGS. X-ray photoelectron spectroscopy measurements reveal the existence of Cu- and Ga-rich surface of the as-grown CIGS thin films. The post-growth annealing process lead to migration of the metallic atoms from the surface region into the bulk during the crystallization process, which subsequently causes a significant reduction in the reflectio...
Characterization of Ge nanocrystals embedded in SiO2 by Raman spectroscopy
Serincan, U; Kartopu, G; Guennes, A; Finstad, TG; Turan, Raşit; Ekinci, Y; Bayliss, SC (IOP Publishing, 2004-02-01)
Ge nanocrystals formed in a SiO2 matrix by ion implantation were studied by Raman spectroscopy. It is shown that Raman analysis based on the phonon confinement model yields a successful explanation of the peculiar characteristics resulting from the nanocrystals. A broadening and a shift in the Raman peak are expected to result from the reduced size of the crystals. Asymmetry in the peak is attributed to the variations in the size of the nanocrystals. These effects were observed experimentally for the Ge nan...
Characterization of AgGa0.5In0.5Se2 thin films deposited by electron-beam technique
KARAAĞAÇ, HAKAN; KALELİ, Murat; Parlak, Mehmet (IOP Publishing, 2009-08-21)
AgGa0.5In0.5Se2 thin films were deposited onto a quartz substrate by the electron-beam technique. For the investigation of the annealing effect on structural, optical and electrical properties of deposited films, samples were annealed in the temperature range 300-775 degrees C. The composition analyses of the deposited films carried out by energy dispersive x-ray analysis measurements have shown that the deposited AgGa0.5In0.5Se2 films were indium- and gallium-rich but selenium-and slightly silver-deficient...
Characterization of iron oxide thin films prepared by sol-gel processing
Karakuscu, Aylin; Ozenbas, Macit (American Scientific Publishers, 2008-02-01)
Iron oxide thin films were prepared by spin-coating a gel solution of iron(III) nitrate dissolved in 2-methoxyethanol and acetylacetone on glass and quartz substrates. The film thickness was adjusted by changing the spinning rate of the spin coater, Annealing was carried out between 300 degrees C to 600 degrees C to investigate the phases present in the films. Viscosity of the main solution was found as 0.0035 Pa (.) s by viscosity measurement. TGA/DTA analyses showed that heat treatment should be done betw...
Citation Formats
B. Sarı and C. Kaynak, “Characterization of Cellulose Nanocrystals Produced via Acid Hydrolysis Method,” presented at the 20th International Metallurgy and Materials Congress - IMMC 2021, İstanbul, Türkiye, 2021, Accessed: 00, 2022. [Online]. Available: