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4.761 Aktuelle Fachpublikationen zum Thema temperature

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Metallic Particle Assemblies on Graphene

02.09.2015 | Gkikas, Manos, Organic Chemistry, 2015

Abstract: Different approaches to obtain metallic particles on graphene are discussed in this Review article and their applications in catalysis, electrocatalysis and surface enhanced Raman spectroscopy (SERS) are highlighted. Synthetic methods for well-dispersed metallic particles (Au, Ag, ...

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Enhancing Properties in Microwave Ceramics Using a Designer Sintering Aid

28.08.2015 | Simon J. Nicholls, Ian M. Reaney, Oliver P. Leisten, Journal of the American Ceramic Society, 2015

It has recently been shown that 0.2CaTiO3–0.8(Li0.5Nd0.5)TiO3 (CTLNT) with the addition of 4wt% Bi4B2O9 (BBO) as a liquid‐phase sintering aid gives rise to exceptional microwave (MW) dielectric properties, (relative permittivity, εr=125, quality factor, Qf0 and temperature coefficient of the ...

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Molecules, Vol. 20, Pages 15701-15734: Some Phthalocyanine and Naphthalocyanine Derivatives as Corrosion Inhibitors for Aluminium in Acidic Medium: Experimental, Quantum Chemical Calculations, QSAR Studies and Synergistic Effect of Iodide Ions

28.08.2015 | Dibetsoe, Masego ; Olasunkanmi, Lukman O.; Fayemi, Omolola E.; Yesudass, Sasikumar ; Ramaganthan, Baskar ; Bahadur, ..., Molecules, 2015

The effects of seven macrocyclic compounds comprising four phthalocyanines (Pcs) namely 1,4,8,11,15,18,22,25-octabutoxy-29H,31H-phthalocyanine (Pc1), 2,3,9,10,16,17,23,24-octakis(octyloxy)-29H,31H-phthalocyanine (Pc2), 2,9,16,23-tetra-tert-butyl-29H,31H-phthalocyanine (Pc3) and ...

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Entropy, Vol. 17, Pages 5980-5994: Numerical Investigation into Natural Convection and Entropy Generation in a Nanofluid-Filled U-Shaped Cavity

26.08.2015 | Cho, Ching-Chang ; Yau, Her-Terng ; Chiu, Ching-Huang ; Chiu, Kuo-Ching, Entropy, 2015

This current work studies the heat transfer performance and entropy generation of natural convection in a nanofluid-filled U-shaped cavity. The flow behavior and heat transfer performance in the cavity are governed using the continuity equation, momentum equations, energy equation and Boussinesq ...

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Studies of Different Properties of Polystyrene‐Asphaltene Composites

25.08.2015 | Mohammad Nahid Siddiqui, Macromolecular Symposia, 2015

Summary The study of thermal and viscoelastic properties of polystyrene composites with different filler loadings of asphaltenes were carried out. The thermogravimetric analysis revealed that the T10 for neat polystyrene was around 365°C and it increased to 440°C with an addition of ...

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A New Crosslinker for the Preparation of Silk Fibroin Hydrogels

25.08.2015 | Nuchada Suttenun, Patchara Punyamoonwongsa, Macromolecular Symposia, 2015

Summary Silk fibroin (SF) hydrogels has recently been explored as promising matrices for biomedical applications due to their excellent biodegradability, biocompatibility and hydrophilicity. Despite these, native SF hydrogels showed poor water resistance with typical uncontrollable gelation ...

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Thermal Conductivity of Molten Li2O–B2O3 and K2O–B2O3 Systems

25.08.2015 | Youngjae Kim, Kazuki Morita, Journal of the American Ceramic Society, 2015

Using the transient hot‐wire method, the thermal conductivity properties of the molten Li2O–B2O3 and K2O–B2O3 systems were measured. The thermal conductivity increases with decreasing the temperature due to the borate structure change. In addition, calculations of the one‐dimensional Debye ...

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Cassava Stem Powder as an Additive in Biomass Fuel Pellet Production

25.08.2015 | Sylvia Larsson; Oscar Lockneus; Shaojun Xiong; Robert Samuelsson, Energy & Fuels, 2015

In biomass fuel pelletizing, some raw materials with less favorable binding properties require a binding enhancing additive for enhancing required pellet quality. Starch is commonly used as a binder in industrial fuel pelletizing but is a refined product that adds substantially to pellet ...

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SP–PLP–EPR Measurement of Iron-Mediated ATRP Deactivation Rate

25.08.2015 | Hendrik Schroeder; Michael Buback, Macromolecules, 2015

The rate of ATRP deactivation was measured for the amine–bis(phenolate)iron-mediated polymerization of 2-ethylhexyl methacrylate (EHMA). EHMA radical concentration is monitored by highly time-resolved EPR spectroscopy after pulsed-laser-induced radical production. In addition, the concentration ...

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Selective Ruthenium‐Catalyzed Hydrochlorination of Alkynes: One‐Step Synthesis of Vinylchlorides

24.08.2015 | Sylvie Dérien, Hubert Klein, Christian Bruneau, Angewandte Chemie International Edition, 2015

Abstract An unprecedented ruthenium‐catalyzed direct and selective alkyne hydrochlorination is reported and leads to vinylchlorides in excellent yields with atom economy. The reaction proceeds at room temperature from terminal alkynes and provides a variety of chloroalkenes. Only the ...

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