نتایج جستجو برای: fluorine

تعداد نتایج: 7204  

2007
Geoffrey A. Landis

Oxygen, metals, silicon, and glass are raw materials that will be required for long-term habitation and production of structural materials and solar arrays on the Moon. A process sequence is proposed for refining these materials from lunar regolith, consisting of separating the required materials from lunar rock with fluorine. The fluorine is brought to the Moon in the form of potassium fluorid...

2018
Matic Resnik Rok Zaplotnik Miran Mozetic Alenka Vesel

The fluorination of the polymer polyethylene terephthalate in plasma created from SF₆ or CF₄ gas at various pressures was investigated. The surface was analysed by X-ray photoelectron spectroscopy and water contact angle measurements, whereas the plasma was characterized by optical emission spectroscopy. The extent of the polymer surface fluorination was dependent on the pressure. Up to a thres...

2013
Jin-Suk Seo Jun-Hyuck Jeon Young Hwan Hwang Hyungjin Park Minki Ryu Sang-Hee Ko Park Byeong-Soo Bae

Transparent flexible fluorine-doped indium zinc oxide (IZO:F) thin-film transistors (TFTs) were demonstrated using the spin-coating method of the metal fluoride precursor aqueous solution with annealing at 200°C for 2 hrs on polyethylene naphthalate films. The proposed thermal evolution mechanism of metal fluoride aqueous precursor solution examined by thermogravimetric analysis and Raman spect...

Journal: :Jurnal Penelitian Pendidikan IPA (JPPIPA) 2022

The purpose of this study is to analyze the quality optical properties such as energy band gap thin layer tin oxide doped with aluminum, fluorine, indium, aluminum-fluorine, aluminum-indium, and aluminum-fluorine-indium. was synthesized using sol-gel spin coating method. ratio basic ingredients doping used in 95:5% 85:15%. that has been formed then heated at a temperature 100 200 0C. results an...

Journal: :Bulletin of the Chemical Society of Japan 1961

Journal: : 2023

It is shown that fluorine-containing anodic layers on the n-InAs(001) surface, in contrast to fluorine-free layers, form an interface with unpinned Fermi level, density of states which near midgap about 10 11 eV -1 · cm -2 (78 K ). The study chemical composition showed decrease associated formation indium and arsenic oxyfluorides interface. Keywords: InAs, MIS structure, fluorine, layer, states.

Journal: :Bulletin der Schweizerischen Akademie der Medizinischen Wissenschaften 1956
G SCHMID

Fluorosis is a chronic disease caused by the body weight produces clinical signs after continued continued ingestion of small but toxic amounts of ingestion. fluorine in the diet or drinking water over a long duration In case of pregnant cows the fluorine content of leading the cumulative effect, while acute poisoning bones of new born calves depends on the dam’s intake occurs due to inhalation...

2013
Hideki Amii Aiichiro Nagaki Jun-ichi Yoshida

Organo-fluorine compounds are the substances of considerable interest in various industrial fields due to their unique physical and chemical properties. Despite increased demand in wide fields of science, synthesis of fluoro-organic compounds is still often faced with problems such as the difficulties in handling of fluorinating reagents and in controlling of chemical reactions. Recently, flow ...

Journal: :Journal of computational chemistry 2008
L. A. Zotti G. Teobaldi K. Palotás W. Ji H.-J. Gao W. A. Hofer

We modelled the adsorption of benzene, fluorobenzene and meta-di-fluorobenzene on Cu(110) by Density Functional Theory. We found that the adsorption configuration depends on the coverage. At high coverage, benzene assumes a tilted position, while at low coverage a horizontal slightly distorted geometry is favoured. Functionalizing the benzene ring with one or two fluorine atoms weakens the bond...

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