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Showing 31-60 of 70 results for "377996" within Papers
Matthew T McDowell et al.
ACS applied materials & interfaces, 7(28), 15189-15199 (2015-06-18)
Light absorbers with moderate band gaps (1-2 eV) are required for high-efficiency solar fuels devices, but most semiconducting photoanodes undergo photocorrosion or passivation in aqueous solution. Amorphous TiO2 deposited by atomic-layer deposition (ALD) onto various n-type semiconductors (Si, GaAs, GaP
Ali Es-haghi et al.
Analytica chimica acta, 742, 74-79 (2012-08-14)
Novel solid-phase microextraction fibers were prepared based on sol-gel technique. Commonly used fused silica substrate was replaced by titanium wire which provided high strength and longer fiber life cycle. Titanium isopropoxide was employed as the precursor which provides a sol
Sreenivasan Koliyat Parayil et al.
Journal of nanoscience and nanotechnology, 15(9), 7285-7292 (2015-12-31)
TiO2-SiO2 mixed oxide photocatalyst materials responsive to simulated solar light illumination have been synthesized by sol-gel method in various polar and nonpolar organic solvent mixtures. The photocatalysts were characterized by numerous experimental techniques and investigated for the photocatalytic conversion of
Tze-Bin Song et al.
ACS applied materials & interfaces, 7(44), 24601-24607 (2015-10-22)
Solution-processed silver nanowire networks are one of the promising candidates to replace a traditional indium tin oxide as next-generation transparent and flexible electrodes due to their ease of processing, moderate flexibility, high transparency, and low sheet resistance. To date, however
Fengxiang Chen et al.
ACS nano, 11(10), 10330-10336 (2017-09-22)
Carbon fiber is a good candidate in various applications, including in the military, structural, sports equipment, energy storage, and infrastructure. Coloring of carbon fiber has been a big challenge for decades due to their high degrees of crystallization and insufficient
Yi-Chun Hsu et al.
Chemical & pharmaceutical bulletin, 53(10), 1266-1269 (2005-10-06)
The direct activation of C-O bonds in allylic alcohols by palladium complexes has been accelerated by carrying out the reactions in the presence of titanium(IV) isoproxide and 4 A molecular sieves. The acidic and less nucleophilic anilines such as diphenylamine
Josephine Selvaraj et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 15(10), 2010-2018 (2014-07-01)
Nitrogen (N)-doped reduced graphene oxide (nRGO) is systematically incorporated into a TiO(2) -CdS photoelectrochemical (PEC) cell and its role is examined in the three main components of the cell: 1) the CdS-sensitized TiO(2) photoanode, 2) the cathode, and 3) the
Jae-Yup Kim et al.
ACS nano, 9(11), 11286-11295 (2015-10-03)
Copper-indium-selenide (CISe) quantum dots (QDs) are a promising alternative to the toxic cadmium- and lead-chalcogenide QDs generally used in photovoltaics due to their low toxicity, narrow band gap, and high absorption coefficient. Here, we demonstrate that the photovoltaic performance of
Henrique Antonio Mendonça Faria et al.
Materials science & engineering. C, Materials for biological applications, 56, 260-268 (2015-08-08)
The structural and electronic properties of titanium oxide nanotubes (TiO2) have attracted considerable attention for the development of therapeutic devices and imaging probes for nanomedicine. However, the fluorescence response of TiO2 has typically been within ultraviolet spectrum. In this study
Active cytotoxic reagents based on non-metallocene non-diketonato well-defined C2-symmetrical titanium complexes of tetradentate bis(phenolato) ligands.
Michal Shavit et al.
Journal of the American Chemical Society, 129(40), 12098-12099 (2007-09-20)
Yann Sarazin et al.
Dalton transactions (Cambridge, England : 2003), (2)(2), 340-350 (2005-12-21)
The reactions of the bulky amino-bis(phenol) ligand Me(2)NCH(2)CH(2)N[CH(2)-3,5-Bu(t)(2)-C(6)H(2)OH-2](2)(1-H(2)) with Zn[N(SiMe(3))(2)](2)(4), [Mg[N(SiMe(3))(2)](2)](2)(5) and Ca[N(SiMe(3))(2)](2)(THF)(2)(6) yield the complexes 1-Zn, 1-Mg and 1-Ca in good yields. The X-ray structure of 1-Ca showed the complex to be dimeric, with calcium in a distorted octahedral
Li Qiu et al.
Chirality, 21(2), 316-323 (2008-06-10)
A new catalytic system, generated from the readily available and inexpensive beta-sulfonamide alcohol L*, Ti(O(i)Pr)(4), Et(2)Zn, and tertiary amine base (R(3)N), effectively catalyzes the enantioselective addition of various terminal alkynes including some quite challenging alkynes to aldehydes in good yields
Amir Behzadnia et al.
Ultrasonics sonochemistry, 27, 10-21 (2015-07-19)
In this study, N-doped ZnO/TiO2 core-shell nanocomposite was successfully sonosynthesized and sonofabricated on wool fabric through a facile one-step method under ambient pressure and low temperature (75-80°C) as a novel photo-catalyst nanocomposite on textile material. The differences between crystalline phase
Chang-Min Yoon et al.
ACS applied materials & interfaces, 7(34), 18977-18984 (2015-08-13)
A series of alkaline earth metal-doped hollow SiO2/TiO2 spheres (EM-HST) are prepared as electrorheological (ER) materials via sonication-mediated etching method with various alkaline earth metal hydroxides as the etchant. The EM-HST spheres are assessed to determine how their hollow interior
Mitsunobu Iwasaki et al.
Journal of colloid and interface science, 326(2), 537-540 (2008-08-16)
Nanometer-sized TiO(2) island structure on the platy hydroxyapatite nanocrystals (HAp) has been accomplished by two-step emulsion process. At the first step, platy HAp nanocrystals, of which size was in the range of 70-200 nm after heat-treatment at 1078 K for
Masayuki Takahashi et al.
Chemical communications (Cambridge, England), 46(19), 3336-3338 (2010-04-10)
In an attempt to understand the nature of selectivity in Ti-mediated reductive cross-coupling between homoallylic alcohols and imines, we investigated whether thermodynamic equilibration of the presumed organometallic intermediate plays a role in selectivity. No evidence could be found for olefin
Laxman Gouda et al.
The journal of physical chemistry letters, 6(22), 4640-4645 (2015-12-02)
The high open-circuit potential (Voc) achieved by perovskite solar cells (PSCs) is one of the keys to their success. The Voc analysis is essential to understand their working mechanisms. A large number of CH3NH3PbI3-xClx PSCs were fabricated on single large-area
Raju C Asha et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 50(10), 1011-1019 (2015-06-30)
The presence of sulfamethoxazole (SMX) in a real-time poultry wastewater was identified via HPLC analysis. Subsequently, SMX removal from the poultry wastewater was investigated using a continuous-mode membrane-photocatalytic slurry reactor (MPSR). The real-time poultry wastewater was found to have an
Chong-Dao Lu et al.
Chemical communications (Cambridge, England), (20)(20), 2624-2626 (2005-05-19)
The rhodium(II)-catalyzed three-component reaction of diazoacetates, titanium alkoxides and aldehydes is shown to give alpha-alkoxyl-beta-hydroxyl acid derivatives; the novel C-C bond formation reaction is proposed to occur through oxonium ylides derived from diazo compounds and titanium alkoxides, and followed by
R Said et al.
Journal of nanoscience and nanotechnology, 10(4), 2552-2557 (2010-04-02)
RF-PECVD was used to prepare amorphous of carbon (DLC) onto stainless steel 316 and glass substrates. The substrates were negatively biased at between 100 V to 400 V. Thin films of DLC have been deposited using C2H2 and titanium isopropoxide
Joshi M Ramanjulu et al.
Organic letters, 12(10), 2270-2273 (2010-04-27)
A novel, one-step method for the synthesis of tri- and tetrasubstituted pyrimidin-4-ones is reported. This method involves a titanium(IV)-mediated cyclization involving two sequential condensations of primary and beta-ketoamides. The reaction is operationally facile, readily scalable, and offers rapid entry into
Alfred J Wooten et al.
Organic letters, 9(3), 381-384 (2007-01-26)
[reaction: see text] We report the catalytic asymmetric allylation of ketones under highly concentrated reaction conditions with a catalyst generated from titanium tetraisopropoxide and BINOL (1:2 ratio) in the presence of isopropanol. This catalyst promotes the addition of tetraallylstannane to
Ramesh Raliya et al.
Metallomics : integrated biometal science, 7(12), 1584-1594 (2015-10-16)
Sustainable use of nanotechnology for agricultural practice requires an understanding of the plant's life cycle and potential toxicological impacts of nanomaterials. The main objective of this study was to compare the impact of TiO2 and ZnO nanoparticles of similar size
Choumini Balasanthiran et al.
Journal of colloid and interface science, 459, 63-69 (2015-08-12)
The surface of oleic acid stabilized rod-shape anatase TiO2 nanocrystals was modified by adsorption of Eu(3+) ions. The Eu(3+) attachment showed Langmuir adsorption behavior, thus the loading of Eu(3+) could be controlled precisely up to surface saturation coverage. The Eu(3+)-TiO2
Laszlo Sipos et al.
Biomacromolecules, 6(5), 2570-2582 (2005-09-13)
A poly(styrene-b-isobutylene-b-styrene) (SIBS) triblock polymer is employed as the polymer drug carrier for the TAXUS Express2 Paclitaxel-Eluting Coronary Stent system (Boston Scientific Corp.). It has been shown that the release of paclitaxel (PTx) from SIBS can be modulated by modification
Dong Hoe Kim et al.
ChemSusChem, 8(14), 2392-2398 (2015-04-22)
Perovskite solar cells (PSCs) are the most promising candidates as next-generation solar energy conversion systems. To design a highly efficient PSC, understanding electronic properties of mesoporous metal oxides is essential. Herein, we explore the effect of Nb doping of TiO2
Zarrin Es'haghi et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 980, 55-64 (2015-01-16)
A new design of hollow fiber solid-liquid phase microextraction (HF-SLPME) was developed for the determination of benzodiazepines (BZPs) in hair, urine and wastewater. The membrane extraction with 1-pentyl-3-methylimidazolium bromide coated titanium dioxide ([PMIM]Br@TiO2) sorbent used in this research is a
Guangqing Guo et al.
The journal of physical chemistry. B, 109(40), 18781-18785 (2006-07-21)
Nanoscaled TiO2 powders with narrow size dispersion were prepared in supercritical carbon dioxide via non-hydrolytic acylation/deacylation of titanium alkoxide precursors with or without tris-fluorination. The microstructures of these powders were characterized by spectroscopic (FTIR, TGA, and XRD), microscopic (SEM or
Long Yang et al.
Analytica chimica acta, 852, 28-36 (2014-12-03)
A titanium dioxide-silicon carbide nanohybrid (TiO2-SiC) with enhanced electrochemical performance was successfully prepared through a facile generic in situ growth strategy. Monodispersed ultrafine palladium nanoparticles (Pd NPs) with a uniform size of ∼2.3 nm were successfully obtained on the TiO2-SiC
Bridget K Mutuma et al.
Journal of colloid and interface science, 442, 1-7 (2014-12-17)
TiO2 photocatalysts with a mixture of different TiO2 crystal polymorphs have customarily been synthesized hydrothermally at high temperatures using complicated and expensive equipment. In this study TiO2 nanoparticles with a mixture of TiO2 crystals were synthesized using a modified sol-gel
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