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1.843 Aktuelle Fachpublikationen zum Thema temperature

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Determination of Total Sulfur in Food Samples by Solid Sampling High-Resolution Continuum Source Graphite Furnace Molecular Absorption Spectrometry

09.05.2013 | Nil Ozbek; Suleyman Akman, Journal of Agricultural and Food Chemistry, 2013

The determination of sulfur in food samples via the rotational molecular absorption of carbon monosulfide (CS) was performed using a solid sampling high-resolution continuum source electrothermal atomic absorption spectrophotometer (SS-HR-CS-ETAAS). In the presence of plenty of carbon in the ...

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Formation of HCN+ in Heterogeneous Reactions of N2+ and N+ with Surface Hydrocarbons

09.05.2013 | Martina Harnisch; Alan Keim; Paul Scheier; Zdenek Herman, Journal of Physical Chemistry A, 2013

A significant increase of the ion yield at m/z 27 in collisions of low-energy ions of N2+ and N+ with hydrocarbon-covered room-temperature or heated surfaces of tungsten, carbon-fiber composite, and beryllium, not observed in analogous collisions of Ar+, is ascribed to the formation of HCN+ ...

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The 3D structure through planting core-shell Si@TiN into an amorphous carbon slag: improved capacity of lithium-ion anodes

08.05.2013 | Jiguo Tu; Zuochao Zhao; Liwen Hu; Shuqiang Jiao; Jungang Hou; Hongmin Zhu, Physical Chemistry Chemical Physics, 2013

The 3D structure anode material, planting core-shell Si@TiN into an amorphous carbon slag (3D STC), was synthesized via a facile pyrolyzing process in assistance with the low-temperature reduction route in a liquid Na-NH3 system. The as-prepared samples were characterized by X-ray ...

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Carbon Xerogel Microspheres and Monoliths from Resorcinol–Formaldehyde Mixtures with Varying Dilution Ratios: Preparation, Surface Characteristics, and Electrochemical Double-Layer Capacitances

08.05.2013 | Zulamita Zapata-Benabithe; Francisco Carrasco-Marín; Juan de Vicente; Carlos Moreno-Castilla, Langmuir, 2013

Carbon xerogels in the form of microspheres and monoliths were obtained from the sol–gel polymerization of resorcinol and formaldehyde in the presence of potassium carbonate as catalyst, using water as solvent and two different molar dilution ratios. The objectives of this study were as ...

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Use of Reactive Species in Water for CO2 Mineralization

08.05.2013 | Juan Ma; Roe-Hoan Yoon, Energy & Fuels, 2013

Various carbon capture and sequestration (CCS) technologies have been developed to address the issues concerning climate changes associated with anthropogenic CO2 emissions. In the present work, possibilities of mineralizing CO2 with the reactive species, such as Mg2+ ions, present in nature, ...

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Charge transport and ammonia sensing properties of flexible polypyrrole nanosheets grown at air–liquid interface

06.05.2013 | Author(s): Purushottam Jha , Niranjan S. Ramgir , Preetam K. Sharma , N. Datta , S. Kailasaganapathi , M. Kaur ..., Materials Chemistry and Physics, 2013

Publication date: 15 June 2013Source:Materials Chemistry and Physics, Volume 140, Issue 1 Author(s): Purushottam Jha , Niranjan S. Ramgir , Preetam K. Sharma , N. Datta , S. Kailasaganapathi , M. Kaur , S.P. Koiry , V. Saxena , A.K. Chauhan , A.K. Debnath , Ajay Singh , D.K. ...

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Ozone priming of patterned carbon nanotube forests for subsequent atomic layer deposition-like deposition of SiO2 for the preparation of microfabricated thin layer chromatography plates

01.05.2013 | David S. Jensen, Supriya S. Kanyal, Nitesh Madaan, Andrew J. Miles, Robert C. Davis et al., Journal of Vacuum Science & Technology B, 2013

The authors report the ozonation of patterned, vertically aligned carbon nanotube (CNT) forests as a method of priming them for subsequent pseudo atomic layer deposition (ψ-ALD) (alternating layer deposition) of silica to produce microfabricated, CNT-templated thin layer chromatography (TLC) ...

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Computational Studies for the Evaluation of Fuel Flexibility in Solid Oxide Fuel Cells: A Case with Biosyngas

30.04.2013 | L. Fan, Z. Qu, M. J. B. M. Pourquie, A. H. M. Verkooijen, P. V. Aravind, Fuel Cells, 2013

Abstract The fuel flexibility of solid oxide fuel cells (SOFCs) is one of the advantages of this technology, and biosyngas produced from biomass is emerging as a new fuel. The fuelling of SOFCs with different fuels is always challenging because of the associated risks. Mathematical ...

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Thermoelectric properties of composites made of Ni0.05Mo3Sb5.4Te1.6 and fullerene

29.04.2013 | Author(s): Nagaraj Nandihalli , Ali Lahwal , Daniel Thompson , Tim C. Holgate , Terry M. Tritt , Véronique Das ..., Journal of Solid State Chemistry, 2013

Publication date: July 2013Source:Journal of Solid State Chemistry, Volume 203 Author(s): Nagaraj Nandihalli , Ali Lahwal , Daniel Thompson , Tim C. Holgate , Terry M. Tritt , Véronique Dassylva-Raymond , László I. Kiss , Elisabeth Sellier , Stéphane Gorsse , Holger Kleinke ...

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Electrochemical grafting of 4‐phenoxybenzoic acid units onto oxidized carbon fibers as a first step for high temperature composites

27.04.2013 | Spyridon Soulis, Despina Triantou, Johannis Simitzis, Journal of Applied Polymer Science, 2013

ABSTRACT The electropolymerization of 4‐phenoxybenzoic acid (4‐PBA) onto carbon fibers (CFs) was studied as a way to synthesize coated CFs with grafted poly(para‐phenyl ether ketone) (p‐PEK) and enhance their wettability by matrices such as PEK or PEEK. Since the pristine CFs were not ...

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