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4.884 Aktuelle Fachpublikationen zum Thema temperature

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Preparation and characterization of gold nanoparticles prepared with aqueous extracts of Lamiaceae plants and the effect of follow-up treatment with atmospheric pressure glow microdischarge

01.05.2016 | Author(s): Anna Dzimitrowicz, Piotr Jamróz, George C. diCenzo, Iwona Sergiel, Tomasz Kozlecki, Pawel Pohl, Arabian Journal of Chemistry, 2016

Publication date: Available online 30 April 2016 Source:Arabian Journal of Chemistry Author(s): Anna Dzimitrowicz, Piotr Jamróz, George C. diCenzo, Iwona Sergiel, Tomasz Kozlecki, Pawel Pohl The unique properties of gold nanoparticles (AuNPs) make them attractive for use in a ...

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Evaluation of an alternative chlorine production process for energy saving toward sustainability

30.04.2016 | Ali Ghannadzadeh, Majid Sadeqzadeh, Environmental Progress, 2016

Exergetic‐based solutions are proposed in this work to reduce the energy footprint of an alternative chlorine production process. By presenting exergy analysis results in the form of visualized exergetic process flowsheets using a solution panel, this study does not only find the ...

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Advanced CFD Analysis of an Air‐cooled PEM Fuel Cell Stack Predicting the Loss of Performance with Time

29.04.2016 | C. Fink, L. Karpenko‐Jereb, S. Ashton, Fuel Cells, 2016

Abstract The PEM fuel cell simulation package developed by AVL List GmbH is coupled with a semi‐empirical degradation model describing the dependency of material parameters on operating conditions. The CFD model calculates the 3D distributions of electronic/ionic potentials, velocity, ...

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High-Pressure Crystal Structure, Lattice Vibrations, and Band Structure of BiSbO4

29.04.2016 | Daniel Errandonea; Alfonso Muñoz; Placida Rodríguez-Hernández; Oscar Gomis; S. Nagabhusan Achary; Catalin Popescu; S ..., Inorganic Chemistry, 2016

The high-pressure crystal structure, lattice-vibrations, and electronic band structure of BiSbO4 were studied by ab initio simulations. We also performed Raman spectroscopy, infrared spectroscopy, and diffuse-reflectance measurements, as well as synchrotron powder X-ray diffraction. High-pressure ...

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Effect of pressure on supercritical CO2 compatibility of structural alloys at 750 °C

27.04.2016 | B.A. Pint, R.G. Brese, J.R. Keiser, Materials and Corrosion, 2016

Several power generation technologies have interest in employing a supercritical CO2 (sCO2) cycle but relatively little compatibility work has been conducted at the target pressure range of 200–300 bar, particularly at ≥700 °C. With the goal of utilizing lower pressure data sets (especially ...

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Passivation effect of water vapour on thin film polycrystalline Si solar cells

27.04.2016 | Peter Pikna, Martin Müller, Christiane Becker, Antonín Fejfar, physica status solidi (a), 2016

In this work, we investigated a passivation of both surface and bulk of polycrystalline silicon films by water vapour. To assess the passivation effect we used Suns‐VOC method to measure the open‐circuit voltage VOC of polycrystalline silicon thin film solar cells. The treatment conditions, ...

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Heterogeneous Photochemical Conversion of NO2 to HONO on the Humic Acid Surface under Simulated Sunlight

27.04.2016 | Chong Han; Wangjin Yang; Qianqian Wu; He Yang; Xiangxin Xue, Environmental Science & Technology, 2016

The poor understanding of HONO sources in the daytime highlights the importance of the heterogeneous photochemical reaction of NO2 with aerosol or soil surfaces. The conversion of NO2 to HONO on humic acid (HA) under simulated sunlight was investigated using a flow tube reactor at ambient ...

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Simulating Gas–Liquid−Water Partitioning and Fluid Properties of Petroleum under Pressure: Implications for Deep-Sea Blowouts

27.04.2016 | Jonas Gros; Christopher M. Reddy; Robert K. Nelson; Scott A. Socolofsky; J. Samuel Arey, Environmental Science & Technology, 2016

With the expansion of offshore petroleum extraction, validated models are needed to simulate the behaviors of petroleum compounds released in deep (>100 m) waters. We present a thermodynamic model of the densities, viscosities, and gas–liquid−water partitioning of petroleum mixtures with varying ...

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A New Allotrope of Nitrogen as High-Energy Density Material

27.04.2016 | Michael J. Greschner; Meng Zhang; Arnab Majumdar; Hanyu Liu; Feng Peng; John S. Tse; Yansun Yao, Journal of Physical Chemistry A, 2016

A new allotrope of nitrogen in which the atoms are connected to form a novel N6 molecule is predicted to exist at ambient conditions. The N6 molecule is a charge-transfer complex with an open-chain structure containing both single and triple bonds. The charge transfer induces ionic ...

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Mn2MnReO6: Synthesis and Magnetic Structure Determination of a New Transition-Metal-Only Double Perovskite Canted Antiferromagnet

26.04.2016 | Man-Rong Li; Jason P. Hodges; Maria Retuerto; Zheng Deng; Peter W. Stephens; Mark C. Croft; Xiaoyu Deng; Gabriel Kot ..., Chemistry of Materials, 2016

Transition-metal-only double perovskite oxides (A2BB′O6) are of great interest due to their strong and unusual magnetic interactions; only one compound, Mn2FeReO6, was reported in this category to date. Herein, we report the second transition-metal-only double perovskite, Mn2MnReO6, prepared at ...

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