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2.139 Aktuelle Fachpublikationen zum Thema temperature

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Star-shaped VO2 (M) Nanoparticles Film with High Thermochromic Performance

01.07.2015 | Li Zhong; Ming Li; Hua Wang; Yuanyuan Luo; Jing Pan; Guanghai Li, CrystEngComm, 2015

Star-shaped VO2 (M) nanoparticles were synthesized by hydrothermal reaction using only ammonium metavanadate and formic acid combined with subsequently mild annealing treatment. An enhanced thermochromic performance was demonstrated upon changing temperature and the applied pulse voltage for the ...

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In situ production of silver nanoparticles on an aldehyde-equipped conjugated porous polymer and subsequent heterogeneous reduction of aromatic nitro groups at room temperature

01.07.2015 | Jie Liu; Jieshun Cui; Filipe Vilela; Jun He; Matthias Zeller; Allen D Hunter; Zhengtao Xu, Chemical Communication, 2015

In a metal-free procedure, chelating thiol groups and an electrophile react to assemble a robust, conjugated porous polymer with pendant aldehyde functionalities. These groups are able to reduce Ag(I) ions to generate, in situ, Ag(0) nanoparticles evenly dispersed on the polymer matrix. The ...

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Green synthesis and biological activities of gold nanoparticles functionalized with Salix alba

28.06.2015 | Author(s): Nazar Ul Islam , Kamran Jalil , Muhammad Shahid , Abdur Rauf , Naveed Muhammad , Ajmal Khan , Muham ..., Arabian Journal of Chemistry, 2015

Publication date: Available online 28 June 2015 Source:Arabian Journal of Chemistry Author(s): Nazar Ul Islam , Kamran Jalil , Muhammad Shahid , Abdur Rauf , Naveed Muhammad , Ajmal Khan , Muhammad Raza Shah , Muhammad Atif Khan This study reports a facile and reproducible green ...

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Irreversible phase transitions due to laser-based T-jump heating of precursor Eu:ZrO2/Tb:Y2O3 core/shell nanoparticles

28.06.2015 | Author(s): Ray Gunawidjaja , Helena Diez-y-Riega , Hergen Eilers, Journal of Solid State Chemistry, 2015

Publication date: September 2015 Source:Journal of Solid State Chemistry, Volume 229 Author(s): Ray Gunawidjaja , Helena Diez-y-Riega , Hergen Eilers Amorphous precursors of Eu-doped-ZrO2/Tb-doped-Y2O3 (p-Eu:ZrO2/p-Tb:Y2O3) core/shell nanoparticles are rapidly heated to temperatures ...

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Antagonistic Functionalized Nucleation and Oxidative Degradation in Combustive Formation of Pyrene‐Based Clusters Mediated by Triplet O and O2: Theoretical Study

26.06.2015 | Andrea Maranzana, Glauco Tonachini, ChemPhysChem, 2015

Abstract Polycyclic aromatic hydrocarbons (PAHs) and carbonaceous nanoparticles can be oxidized right from their inception and all through their growth. Oxidation can also promote their degradation. This modelistic density functional theory (DFT) study explores, in a descriptive manner, if ...

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Preparation and Characterization of Chitosan Nanoparticles‐Loaded Fish Gelatin‐Based Edible Films

25.06.2015 | Seyed Fakhreddin Hosseini, Masoud Rezaei, Mojgan Zandi, Farhid Farahmandghavi, Journal of Food Process Engineering, 2015

Abstract Bio‐based nanocomposite films were obtained from fish gelatin (FG) and different amounts of chitosan nanoparticles (CSNPs) (0, 2, 6 and 8% w/w) with diameters ranging from 40 to 80 nm. The influence of nanoparticles on the surface morphology, physicochemical properties, crystalline ...

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Platinum Nanoparticles Stabilized by Glycerodendrimers: Synthesis and Application to the Hydrogenation of α,β‐Unsaturated Ketones under Mild Conditions

24.06.2015 | Bérengère Menot, Lionel Salmon, Sandrine Bouquillon, European Journal of Inorganic Chemistry, 2015

Abstract Air‐stable platinum nanoparticles stabilized by glycerodendrimers were prepared in water and analyzed by TEM. These platinum nanoparticles showed good catalytic activity for the reduction of α,β‐unsaturated ketones to saturated ketones at room temperature in water or in water/THF ...

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Synthesis, characterization and thermoluminescence studies of Mn‐doped ZnS nanoparticles

24.06.2015 | Raju Kumar Chandrakar, R. N. Baghel, B. P. Chandra, Luminescence, 2015

Abstract ZnS:Mn nanoparticles were prepared by a chemical precipitation method and characterized by X‐ray diffraction (XRD), field emission gun scanning electron microscope (FEGSEM), and high resolution transmission electron microscopy (HRTEM). Capping agent (mercaptoethanol) concentrations ...

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Comparison Studies of Rheological and Thermal Behaviors of Ionic Liquid and Nanoparticle Ionic Liquid

24.06.2015 | Yihu Song; Yiting Xu; Qiang Zheng, Physical Chemistry Chemical Physics, 2015

Novel nanoparticle ionic liquids (NIL) is prepared by grafting modified nanoparticles with long-chain ionic liquid (IL). The NIL behaves like liquid at ambient temperature. We study the rheological behavior of IL and NIL over the range of 10-55 °C and find an extraordinary difference of IL and ...

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First Evidence of Rh Nano-Hydride Formation at Low Pressure

24.06.2015 | Claudia Zlotea; Yassine Oumellal; Mariem Msakni; Julie Bourgon; Stéphane Bastide; Christine Cachet-Vivier; Michel La ..., Nano Letters, 2015

Rh-based nanoparticles supported on a porous carbon host were prepared with tunable average sizes ranging from 1.3 to 3.0 nm. Depending on the vacuum or hydrogen environment during thermal treatment, either Rh metal or hydride is formed at nanoscale, respectively. In contrast to bulk Rh that can ...

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