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2.491 Aktuelle Fachpublikationen zum Thema temperature

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Fluorescence and phosphorescence of lutetium(III) and gadolinium(III) porphyrins for the intraratiometric oxygen sensing

28.06.2015 | Author(s): Bartosz Kalota , Mikhail Tsvirko, Chemical Physics Letters, 2015

Publication date: 1 August 2015 Source:Chemical Physics Letters, Volume 634 Author(s): Bartosz Kalota , Mikhail Tsvirko Fluorescence and phosphorescence spectra, quantum yields of the emissions, and phosphorescence lifetimes of Lu(III) and Gd(III) porphyrins in solutions measured at 25°C ...

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High activity and wide temperature window of Fe‐Cu‐SSZ‐13 in the selective catalytic reduction of NO with ammonia

27.06.2015 | Tao Zhang, Jianmei Li, Jian Liu, Daxi Wang, Zhen Zhao, Junhua Li, Kai Cheng, AIChE Journal, 2015

Abstract Fe‐Cu‐SSZ‐13 catalysts were prepared by aqueous solution ion‐exchange method based on the one‐pot synthesized Cu‐SSZ‐13. The catalysts were applied to the selective catalytic reduction of NO with NH3 and characterized by the means of XRD, UV‐Vis, EPR, XPS, NH3‐TPD, and so on. The ...

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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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Alloy 800H under supercritical water conditions: a flow reactor study of corrosion and hydrogen evolution

26.06.2015 | K. I. Choudhry, I. M. Svishchev, L. Orlovskaya, Materials and Corrosion, 2015

Hydrogen evolution and corrosion rates for an Alloy 800H flow‐through reactor operating under supercritical water conditions were determined. Experiments were performed in the temperature range of 650 to 750 °C both with deoxygenated feed water, with an O2 concentration of less than 10 μg L−1 ...

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Stability and Decomposition of Ca‐Substituted Lanthanum Ferrite in Reducing Atmospheres

26.06.2015 | Patrick M. Price, Darryl P. Butt, Journal of the American Ceramic Society, 2015

Calcium‐substituted lanthanum ferrites (La1−xCaxFeO3−δ x=0, 0.1, 0.2, 0.3, 0.4) were synthesized in air and subsequently decomposed in reducing atmospheres. The partial pressure of oxygen () was controlled by varying the H2/H2O ratio by bubbling hydrogen/argon mixtures through water baths at ...

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Computational study on the interactions of mustard gas with cucurbituril macrocycles

26.06.2015 | Natarajan Sathiyamoorthy Venkataramanan, Ambigapathy Suvitha, Hiroshi Mizuseki, Yoshiyuki Kawazoe, International Journal of Quantum Chemistry, 2015

The study on the absorption of toxic gases such as mustard gas by organic host is essential to the development of inexpensive detection and decontamination equipments. Using quantum chemical methods, we propose cucurbituril as an effective host to capture mustard gas. It was found that stable ...

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Moderate or Intense Low-Oxygen Dilution Combustion of Methane Diluted by CO2 and N2

26.06.2015 | Jianpeng Zhang; Jianchun Mi; Pengfei Li; Feifei Wang; Bassam B. Dally, Energy & Fuels, 2015

Moderate or intense low-oxygen dilution (MILD) combustion is regarded as one of the most effective technologies to achieve extremely low NOx emissions of combustion. MILD combustion diluted by CO2 and by N2 are herein termed “MILD oxy-combustion” and “MILD air combustion”, respectively. The ...

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Strongly Anisotropic Thermal Conductivity of Free‐Standing Reduced Graphene Oxide Films Annealed at High Temperature

25.06.2015 | Jackie D. Renteria, Sylvester Ramirez, Hoda Malekpour, Beatriz Alonso, Alba Centeno, Amaia Zurutuza, Alexandr I. Coc ..., Advanced Functional Materials, 2015

Thermal conductivity of free‐standing reduced graphene oxide films subjected to a high‐temperature treatment of up to 1000 °C is investigated. It is found that the high‐temperature annealing dramatically increases the in‐plane thermal conductivity, K, of the films from ≈3 to ≈61 W m−1 K−1 at ...

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Ab Initio Studies of Anatase TiO2 (101) Surface-supported Au8 Clusters

24.06.2015 | Mikolajczyk, A.; Pinto, H. P.; Gajewicz, A.; Puzyn, T.; Leszczynski, J., Current Topics in Medicinal Chemistry, 2015

Abstract: Supported transition metals on TiO2 surfaces have shown exceptional catalytic properties in many important process such as CO oxidation, selective propane oxidation, hydrogenation, water adsorption and other catalytic and photocatalytic oxidation reaction at low-temperature. Among ...

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Trapping of Charged Gold Adatoms by Dimethyl Sulfoxide on a Gold Surface

24.06.2015 | Zhijing Feng; Simone Velari; Albano Cossaro; Carla Castellarin-Cudia; Alberto Verdini; Erik Vesselli; Carlo Dri; Mar ..., ACS Nano, 2015

We report the formation of dimethyl sulfoxide (DMSO) molecular complexes on Au(111) enabled by native gold adatoms unusually linking the molecules via a bonding of ionic nature, yielding a mutual stabilization between molecules and adatom(s). DMSO is a widely used polar, aprotic solvent whose ...

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