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5.186 Aktuelle Fachpublikationen zum Thema temperature

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Controllable synthesis of CeO2/g-C3N4 composites and their applications in the environment

26.03.2015 | Xiaojie She; Hui Xu; Hefei Wang; Jiexiang Xia; Yanhua Song; Jia Yan; Yuanguo Xu; Qi Zhang; Daolin Du; Huaming Li, Dalton Transactions, 2015

This research has developed a photocatalytic reactor that includes circulating water, light, and a temperature control system. CeO2/g-C3N4 composites with high photocatalytic activity and stability were synthesized by a simple and facile hydrothermal method. The obtained photocatalysts were ...

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Structure-dependent water transport across nanopores of carbon nanotubes: toward selective gating upon temperature regulation

26.03.2015 | Kuiwen Zhao; Huiying Wu, Physical Chemistry Chemical Physics, 2015

Determining water structure in nanopores and its influence on water transport behaviour is of great importance for understanding and regulating the transport across nanopores. Here we report an ultrafast-slow flow transition phenomenon for water transport across nanopores of carbon nanotubes ...

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Study and Modeling of the Evolution of Gas–Liquid Partitioning of Hydrogen Sulfide in Model Solutions Simulating Winemaking Fermentations

20.03.2015 | Jean-Roch Mouret; Jean-Marie Sablayrolles; Vincent Farines, Journal of Agricultural and Food Chemistry, 2015

The knowledge of gas–liquid partitioning of aroma compounds during winemaking fermentation could allow optimization of fermentation management, maximizing concentrations of positive markers of aroma and minimizing formation of molecules, such as hydrogen sulfide (H2S), responsible for defects. In ...

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Low‐Temperature, Nontoxic Water‐Induced Metal‐Oxide Thin Films and Their Application in Thin‐Film Transistors

19.03.2015 | Guoxia Liu, Ao Liu, Huihui Zhu, Byoungchul Shin, Elvira Fortunato, Rodrigo Martins, Yiqian Wang, Fukai Shan, Advanced Functional Materials, 2015

Here, a simple, nontoxic, and inexpensive “water‐inducement” technique for the fabrication of oxide thin films at low annealing temperatures is reported. For water‐induced (WI) precursor solution, the solvent is composed of water without additional organic additives and catalysts. The ...

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ChemInform Abstract: Cu(N‐Heterocyclic Carbene)chloride: An Efficient Catalyst for Multicomponent Click Reaction for the Synthesis of 1,2,3‐Triazoles in Water at Room Temperature.

19.03.2015 | Vishal B. Purohit, Sharad C. Karad, Kirit H. Patel, Dipak K. Raval, ChemInform, 2015

Abstract The catalyst is recyclable and reusable at least 3 times.

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Sensors, Vol. 15, Pages 6699-6718: Soil Water Content Assessment: Critical Issues Concerning the Operational Application of the Triangle Method

19.03.2015 | Maltese, Antonino ; Capodici, Fulvio ; Ciraolo, Giuseppe ; Loggia, Goffredo La, Sensors, 2015

Knowledge of soil water content plays a key role in water management efforts to improve irrigation efficiency. Among the indirect estimation methods of soil water content via Earth Observation data is the triangle method, used to analyze optical and thermal features because these are primarily ...

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Tantalum Nitride Nanorod Arrays: Introducing Ni–Fe Layered Double Hydroxides as a Cocatalyst Strongly Stabilizing Photoanodes in Water Splitting

19.03.2015 | Lei Wang; Fabio Dionigi; Nhat Truong Nguyen; Robin Kirchgeorg; Manuel Gliech; Sabina Grigorescu; Peter Strasser; Pat ..., Chemistry of Materials, 2015

Ta3N5 nanostructures are widely explored as anodes for photoelectrochemical (PEC) water splitting. Although the material shows excellent semiconductive properties for this purpose, the key challenge is its severe photocorrosion when used in typical aqueous environments. In the present work we ...

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Speed of Sound Measurements in Ethanol and Benzene over the Temperature Range from (253.2 to 353.2) K at Pressures up to 30 MPa

19.03.2015 | Robin Wegge; Markus Richter; Roland Span, Journal of Chemical & Engineering Data, 2015

The speed of sound in ethanol and benzene was measured over the temperature range of (253.2 to 353.2) K with pressures up to 30MPa utilizing the double-path length pulse-echo technique. The speed of sound system was calibrated with pure water at temperatures between T = (274.15 and 353.15) K and ...

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Materials, Vol. 8, Pages 1249-1263: Gas-Phase Deposition of Ultrathin Aluminium Oxide Films on Nanoparticles at Ambient Conditions

19.03.2015 | Valdesueiro, David ; Meesters, Gabrie M. H.; Kreutzer, Michiel T.; van Ommen, J. Ruud, Materials, 2015

We have deposited aluminium oxide films by atomic layer deposition on titanium oxide nanoparticles in a fluidized bed reactor at 27 ± 3 °C and atmospheric pressure. Working at room temperature allows coating heat-sensitive materials, while working at atmospheric pressure would simplify the ...

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Green Synthesis of Phosphorylated Chromenes from Hydroxy Phenones

18.03.2015 | Hossaini, Zinatossadat; Ghambarian, Mehdi; Afshari Sharif Abad, Saeid; Mohtat, Bita, Letters in Organic Chemistry, 2015

Abstract: A simple, efficient and environmentally method for the synthesis of phosphonate derivatives have been considered using the reaction of 2&apos-hydroxy acetophenone or 1-(6-hydroxy-2-isopropenyl-1-benzofuran-yl)-1-ethanone, malononitrile or ethyl cyanoacetate and trialkyl phosphites or ...

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