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2.473 Aktuelle Fachpublikationen zum Thema temperature

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Heterogeneous photochemistry of gaseous NO2 on solid Fluoranthene films: A source of gaseous nitrous acid (HONO) in the urban environment

16.09.2013 | Author(s): David Cazoir , Marcello Brigante , Rachid Ammar , Barbara D’Anna , Christian George, Journal of Photochemistry and Photobiology A: Chemistry, 2013

Publication date: Available online 10 September 2013 Source:Journal of Photochemistry and Photobiology A: Chemistry Author(s): David Cazoir , Marcello Brigante , Rachid Ammar , Barbara D’Anna , Christian George Using a coated flow tube equipped with several near-ultraviolet emitting ...

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One-step synthesis and gas sensing properties of hierarchical Cd-doped SnO2 nanostructures

16.09.2013 | Author(s): Peng Sun , Xin Zhou , Chen Wang , Biao Wang , Xiumei Xu , Geyu Lu, Sensors and Actuators B: Chemical, 2013

Publication date: January 2014 Source:Sensors and Actuators B: Chemical, Volume 190 Author(s): Peng Sun , Xin Zhou , Chen Wang , Biao Wang , Xiumei Xu , Geyu Lu The hierarchical undoped and Cd-doped SnO2 nanostructures had been synthesized via a low-cost and environmentally friendly ...

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Evaluation of atomizer conditioning and pyrolysis and atomization temperature control to improve procedures based on tungsten coil atomic emission spectrometry

16.09.2013 | Author(s): Alex Virgilio , Christopher K. Healy , Joaquim A. Nóbrega , Bradley T. Jones , George L. Donati, Microchemical Journal, 2013

Publication date: Available online 15 September 2013 Source:Microchemical Journal Author(s): Alex Virgilio , Christopher K. Healy , Joaquim A. Nóbrega , Bradley T. Jones , George L. Donati Tungsten coil atomic emission spectrometry (WCAES) allows for simultaneous sensitive multielement ...

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Facile Rearrangement of 3-Oxoalkyl Radicals is Evident in Low-Temperature Gas-Phase Oxidation of Ketones

13.09.2013 | Adam M. Scheer; Oliver Welz; Darryl Y. Sasaki; David L. Osborn; Craig A. Taatjes, Journal of the American Chemical Society, 2013

The pulsed photolytic chlorine-initiated oxidation of methyl-tert-butyl ketone (MTbuK), di-tert-butyl ketone (DTbuK), and a series of partially deuterated diethyl ketones (DEK) is studied in the gas phase at 8 Torr and 550–650 K. Products are monitored as a function of reaction time, mass, and ...

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High temperature corrosion investigation in an oxyfuel combustion test rig

12.09.2013 | M. Montgomery, M. Bjurman, A. Hjørnhede, H. B. Rombrecht, A. Lisk, H. J. Krautz, Materials and Corrosion, 2013

Oxyfuel firing and subsequent capture of CO2 is a way to reduce CO2 emissions from coal‐fired boilers. Literature is summarized highlighting results which may contribute to understanding of the corrosion processes in an oxyfuel boiler. Tests were conducted in a 500 kWth oxyfuel test facility ...

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Measurements of sputtered neutrals and ions and investigation of their roles on the plasma properties during rf magnetron sputtering of Zn and ZnO targets

12.09.2013 | L. Maaloul and L. Stafford, Journal of Vacuum Science & Technology B, 2013

Langmuir probe and optical absorption spectroscopy measurements were used to determine the line-integrated electron density, electron temperature, and number density of Ar atoms in metastable 3P2 and 3P0 levels in a 5 mTorr, rf magnetron sputtering plasmas used for the deposition of ZnO-based ...

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Gas-phase salt bridge interactions between glutamic acid and arginine

11.09.2013 | Sander Jaeqx; Jos Oomens; Anouk M. Rijs, Physical Chemistry Chemical Physics, 2013

The gas-phase side chain–side chain (SC–SC) interaction and possible proton transfer between glutamic acid (Glu) and arginine (Arg) residues are studied under low-temperature conditions in an overall neutral peptide. Conformation-specific IR spectra, obtained with the free electron laser FELIX, ...

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High-temperature isothermal chemical cycling for solar-driven fuel production

11.09.2013 | Yong Hao; Chih-Kai Yang; Sossina M. Haile, Physical Chemistry Chemical Physics, 2013

The possibility of producing chemical fuel (hydrogen) from the solar-thermal energy input using an isothermal cycling strategy is explored. The canonical thermochemical reactive oxide, ceria, is reduced under high temperature and inert sweep gas, and in the second step oxidized by H2O at the same ...

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Production of Gas Phase NO2 and Halogens from the Photolysis of Thin Water Films Containing Nitrate, Chloride and Bromide Ions at Room Temperature

11.09.2013 | Nicole Richards-Henderson; Karen Callahan; Paul Nissenson; Noriko Nishino; Douglas J Tobias; Barbara J. Finlayson-Pitts, Physical Chemistry Chemical Physics, 2013

Nitrate and halide ions coexist in particles generated in marine regions, around alkaline dry lakes, and in the Arctic snowpack. Although the photochemistry of nitrate ions in bulk aqueous solution is well known, there is recent evidence that it may be more efficient at liquid-gas interfaces, and ...

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Experimental investigation and simulation of hollow fiber membrane process for SF6 recovery from GIS

10.09.2013 | Kee Hong Kim, Pravin G. Ingole, Jong Hak Kim, Hyung Keun Lee, Polymers for Advanced Technologies, 2013

In this present study, polyethersulfone hollow fiber membrane was used to recover sulfur hexafluoride (SF6) from gas‐insulated switchgear (GIS). SF6, N2 pure gas and mixed gas (12.5 vol.% of SF6) experiment was initiated to observe permeation behavior according to temperature and pressure ...

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