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3.677 Aktuelle Fachpublikationen zum Thema temperature

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Ce4Ag3Ge4O0.5 – chains of oxygen-centered [OCe2Ce2/2] tetrahedra embedded in a [CeAg3Ge4] intermetallic matrix

18.09.2013 | Gunter Heymann; Jan F. Riecken; Dirk Johrendt; Sudhindra Rayaprol; Rainer Pöttgen; Hubert Huppertz, Dalton Transactions, 2013

The oxidation of an intermetallic phase under high-pressure/high-temperature conditions led to the synthesis of Ce4Ag3Ge4O0.5 exhibiting [OCe2Ce2/2] tetrahedral chains, in which the oxygen atoms statistically occupy the tetrahedral centres. Starting from a 1 [ ] : [ ] 1 [ ] : [ ] 1 CeAgGe ...

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Transformation of rutile to TiO2-II in a high pressure hydrothermal environment

16.09.2013 | Author(s): Kristina Spektor , Dung Trung Tran , Kurt Leinenweber , Ulrich Häussermann, Journal of Solid State Chemistry, 2013

Publication date: October 2013 Source:Journal of Solid State Chemistry, Volume 206 Author(s): Kristina Spektor , Dung Trung Tran , Kurt Leinenweber , Ulrich Häussermann The high pressure transformation of rutile to TiO2-II with the α-PbO2 structure is known to be kinetically hindered. ...

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Dual luminescent arrays sensor fabricated by inkjet-printing of pressure- and temperature-sensitive paints

16.09.2013 | Author(s): Tomohiro Kameya , Yu Matsuda , Yasuhiro Egami , Hiroki Yamaguchi , Tomohide Niimi, Sensors and Actuators B: Chemical, 2013

Publication date: January 2014 Source:Sensors and Actuators B: Chemical, Volume 190 Author(s): Tomohiro Kameya , Yu Matsuda , Yasuhiro Egami , Hiroki Yamaguchi , Tomohide Niimi A novel dual luminescent sensor, which consists of discrete dot arrays of pressure- and temperature-sensitive ...

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Combination of Plasma with a Honeycomb-Structured Catalyst for Automobile Exhaust Treatment

13.09.2013 | Woo Seok Kang; Dae Hoon Lee; Jae-Ok Lee; Min Hur; Young-Hoon Song, Environmental Science & Technology, 2013

To activate a catalyst efficiently at low temperature by plasma for environmental control, we developed a hybrid reactor that combines plasma with a honeycomb-structured catalyst in a practical manner. The reactor developed generated stable cold plasma at atmospheric pressure because of the ...

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Critical Evaluation of the Second Dissociation Constants for Aqueous Sulfuric Acid over a Wide Temperature Range

13.09.2013 | Hannu Sippola, Journal of Chemical & Engineering Data, 2013

The scope of this article is to study the ability of different equations for K2 and different sets of Pitzer parameters to model the thermodynamic properties of the H2SO4–H2O system over a wide temperature range. Three Pitzer parameters are found essential in modeling aqueous sulfuric acid, ...

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A-Site-Ordered Perovskite MnCu3V4O12 with a 12-Coordinated Manganese(II)

12.09.2013 | Yasuhide Akizuki; Ikuya Yamada; Koji Fujita; Norimasa Nishiyama; Tetuo Irifune; Takeshi Yajima; Hiroshi Kageyama; Ka ..., Inorganic Chemistry, 2013

A novel cubic perovskite MnCu3V4O12 has been synthesized at a high pressure and high temperature of 12 GPa and 1373 K. This compound crystallizes in the A-site-ordered perovskite structure (space group Im3̅) with lattice constant a = 7.26684(10) Å at room temperature. The most notable feature of ...

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Drying of milk–blackberry pulp mixture in spouted bed

11.09.2013 | Matheus B. Braga, Sandra C. S. Rocha, The Canadian Journal of Chemical Engineering, 2013

Spouted bed drying of a paste mixture of milk and blackberry pulp using inert beads of polystyrene and polypropylene was analysed in this work. Atomisation and dripping of the paste were compared as feeding modes. The experimental design used atomisation feeding to analyse the effects of air ...

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SULFOXIDES AND SULFONES AS SOLVENTS FOR THE MANUFACTURE OF ALKYL POLYGLYCOSIDES WITHOUT ADDED CATALYST

11.09.2013 | Camille Ludot; Boris Estrine; Jean Le Bras; Norbert Hoffmann; Sinisa Marinkovic; Jacques Muzart, Green Chemistry, 2013

Sulfoxides and sulfones solvents have been used for the glycosidation of various carbohydrates with decanol in the absence of added catalyst. The production of decyl-D-xylosides has been studied in dimethylsulfoxide and the importance of parameters such as the pressure and the temperature on the ...

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Facile Synthesis of Carbon Nanotube-Inorganic Hybrid Materials with Improved Photoactivity

11.09.2013 | Yong Yu; Jun Chen; Ziming Zhou; Yuan-Di Zhao, Dalton Transactions, 2013

A facile method is used for the synthesis of CNTs@TiO2 nanocomposite under simple apparatus, ambient pressure and temperature. CNTs@TiO2 exhibit core-shell structure without interfacial adhesive layer on CNTs surface. The photodegradation of methyl orange suggest the enhanced photoactivity of ...

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LuF[SeO3]: The Structural Chameleon of Lanthanoid Fluoride Oxoselenates(IV)

11.09.2013 | Christian Lipp; Robert E. Dinnebier; Thomas Schleid, Inorganic Chemistry, 2013

LuF[SeO3] is a compound that can easily be obtained by a solid-state reaction of Lu2O3, LuF3, and SeO2 with CsBr as the fluxing agent. The outstanding property of LuF[SeO3] is the appearance of two phase transitions within a range of less than 200 K. With an increase in the coordination number ...

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