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2.070 Aktuelle Fachpublikationen zum Thema temperature

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ChemInform Abstract: Iron Nitrate/TEMPO: A Superior Homogeneous Catalyst for Oxidation of Primary Alcohols to Nitriles in Air.

16.04.2015 | Shashikant U. Dighe, Deepan Chowdhury, Sanjay Batra, ChemInform, 2015

Abstract A highly practical, one‐step, facile synthesis of aromatic, heteroaromatic, allylic and aliphatic nitriles from primary alcohols catalyzed by ferric nitrate in the presence of TEMPO, aqueous ammonia and air at room temperature is described.

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Interactions between Heterogeneous Uptake and Adsorption of Sulfur Dioxide and Acetaldehyde on Hematite

16.04.2015 | Xi Zhao; Lingdong Kong; Zhenyu Sun; Xiaoxiao Ding; Tiantao Cheng; Xin Yang; Jianmin Chen, Journal of Physical Chemistry A, 2015

Sulfur dioxide and organic aldehydes in the atmosphere are ubiquitous and often correlated with mineral dust aerosols. Heterogeneous uptake and adsorption of one of these species on mineral aerosols can potentially change the properties of the particles and further affect the subsequent ...

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Theoretical Investigation on the Reaction between OH Radical and 4,4-Dimethyl-1-pentene in the Presence of O2

16.04.2015 | Weichao Zhang; Benni Du, Journal of Physical Chemistry A, 2015

The atmospheric oxidation mechanism of 4,4-dimethyl-1-pentene (DMP441) initiated by OH radical has been theoretically investigated at the BH&HLYP/6-311++G(d,p) and CCSD(T)/6-31+G(d,p) levels of theory. HC(O)H and 3,3-dimethylbutanal [(CH3)3CCH2C(O)H] are identified in our calculations as major ...

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Application of Direct Analysis in Real Time-Mass Spectrometry (DART-MS) to the Study of Gas–Surface Heterogeneous Reactions: Focus on Ozone and PAHs

14.04.2015 | Shouming Zhou; Matthew W. Forbes; Jonathan P. D. Abbatt, Analytical Chemistry, 2015

A novel analytical method is presented whereby Direct Analysis in Real Time-Mass Spectrometry (DART-MS) is applied to the study of gas–surface heterogeneous reactions. To illustrate the capabilities of the approach, the kinetics of a well-studied reaction of surface-bound polycyclic aromatic ...

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Pyridine-directed palladium-catalyzed electrochemical phosphonation of C(sp2)–H bond

12.04.2015 | Author(s): Tatyana Vasilevna Grayaznova , Yu.B. Dudkina , D.R. Islamov , O.N. Kataeva , O.G. Sinyashin , D.A. ..., Journal of Organometallic Chemistry, 2015

Publication date: 1 June 2015 Source:Journal of Organometallic Chemistry, Volume 785 Author(s): Tatyana Vasilevna Grayaznova , Yu.B. Dudkina , D.R. Islamov , O.N. Kataeva , O.G. Sinyashin , D.A. Vicic , Yu.Н. Budnikova A new electrocatalytic method for the phosphonation of ...

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Pd/SiO2 and AuPd/SiO2 nanocomposite-based optical fiber sensors for H2 sensing applications

12.04.2015 | Author(s): P.R. Ohodnicki , J.P. Baltrus , T.D. Brown, Sensors and Actuators B: Chemical, 2015

Publication date: 31 July 2015 Source:Sensors and Actuators B: Chemical, Volume 214 Author(s): P.R. Ohodnicki , J.P. Baltrus , T.D. Brown The ability to accurately and safely monitor hydrogen concentration is of significant importance for a broad range of energy, defense, aviation, and ...

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Expanding the family of heteroleptic oxidovanadium(IV) compounds with salicylaldehyde semicarbazones and polypyridyl ligands showing anti-Trypanosoma cruzi activity

12.04.2015 | Author(s): Gonzalo Scalese , Julio Benítez , Santiago Rostán , Isabel Correia , Lara Bradford , Marisol Vieite ..., Journal of Inorganic Biochemistry, 2015

Publication date: Available online 12 March 2015 Source:Journal of Inorganic Biochemistry Author(s): Gonzalo Scalese , Julio Benítez , Santiago Rostán , Isabel Correia , Lara Bradford , Marisol Vieites , Lucía Minini , Alicia Merlino , E. Laura Coitiño , Estefania Birriel , ...

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Detailed Chemical Analysis Using Multidimensional Gas Chromatography–Mass Spectrometry and Bulk Properties of Low-Temperature Oxidized Jet Fuels

08.04.2015 | Renée L. Webster; David J. Evans; Philip J. Marriott, Energy & Fuels, 2015

Sequential multidimensional gas chromatographic separations were used to identify secondary and tertiary oxidation products in a number of conventional fossil and alternatively derived aviation fuels. The samples were produced by low-temperature thermal oxidation of the fuels, and the higher ...

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Characterization and effect of calcination temperature on structural properties of spinel zinc aluminate synthesized via Co‐precipitation process

07.04.2015 | Wanichaya Mekprasart, Suchada Worasawat, Thanit Tangcharoen, Wisanu Pecharapa, physica status solidi (c), 2015

Abstract Zinc aluminate (ZnAl2O4) nanopowders were synthesized by co‐precipitation method using zinc chloride and aluminum chloride as starting precursors. The calcination temperature which was a crucial preparation factor was varied and its influence on relevant physical properties of the ...

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Effect of the B-Site Composition on the Oxygen Permeability and the CO2 Stability of Pr0.6Sr0.4CoxFe1–xO3−δ (0.0 ≤ x ≤ 1.0) Membranes

07.04.2015 | Kaveh Partovi; Benjamin Geppert; Fangyi Liang; Claus H. Rüscher; Jürgen Caro, Chemistry of Materials, 2015

Dense single-phase perovskite-type Pr0.6Sr0.4CoxFe1–xO3−δ (0.0 ≤ x ≤ 1.0) membranes (0.6 mm thick) were synthesized via EDTA–citric acid complexing route. Subsequently, the effect of various B-site Co/Fe compositions on oxygen permeability, temperature-dependent CO2 stability, microstructure, and ...

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