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60.763 Aktuelle Fachpublikationen zum Thema temperature

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Synthesis of Formamides Containing Unsaturated Groups by N-Formylation of Amines using CO2 with H2

06.12.2016 | Hangyu Liu; qingqing Mei; Qingling Xu; Jinliang Song; Huizhen Liu; Buxing Han, Green Chemistry, 2016

Formamides have wide applications in industry and have been synthesized using CO2 as carbon source and H2 as reducing agent. However, previous systems required noble catalyst and high temperature to achieve high efficiency, and the substrate scope was mostly limited to saturated amines. Selective ...

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Structural evolution of a metal–organic framework and derived hybrids composed of metallic cobalt and copper encapsulated in nitrogen-doped porous carbon cubes with high catalytic performance

06.12.2016 | Hui Li; Fan Yue; Chao Yang; Peng Xue; Nannan Li; Yi Zhang; Jide Wang, CrystEngComm, 2016

We present here the structural evolution of a Prussian blue analogue CuII3[CoIII(CN)6]2 (Cu–Co PBA) controlled by sodium citrate as a function of time at room temperature. We identified the different stages of Cu–Co PBA formation and elucidated its transformation kinetics. Moreover, 3D hybrid ...

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Merging visible-light photoredox and copper catalysis in catalytic aerobic oxidation of amines to nitriles

06.12.2016 | Chuanzhou Tao; Bin Wang; Lei Sun; Zhou Liu; Yadong Zhai; Xiulian Zhang; Jian Wang, Organic & Biomolecular Chemistry, 2016

Visible-light-initiated homogeneous oxidative synthesis of nitriles from amines was accomplished through a combined use of photoredox and copper catalysis. This transformation was performed at room temperature with O2 as the oxidant.

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Synthesis of a lithium–cyclopentadienide complex by addition of LiNTf2 to a zwitterionic fulvalene

06.12.2016 | Dominic Schmid; Alexander Seyboldt; Klaus Eichele; Doris Kunz, Dalton Transactions, 2016

The synthesis of a η5-coordinated LiCp complex by simple addition of a Li-salt in benzene is presented. A strongly zwitterionic fulvalene serves as the Cp-precursor. Evidence for the coordination of Li+ was obtained by the characterisitic 7Li NMR chemical shifts, variable temperature experiments ...

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New assembly design suitable for tower-shaped large size single-crystal diamond growth under high pressure and high temperature

06.12.2016 | Yadong Li; Xiaopeng Jia; Ning Chen; Liangchao Chen; Longsuo Guo; Chunxiao Wang; Gang Li; Shishuai Sun; Hong-an Ma, CrystEngComm, 2016

During the synthesis of tower-shaped large size single crystal diamonds, a concave growth defect always occurs on the top surface of the diamonds when using the temperature gradient growth (TGG) method under high pressure and high temperature (HPHT) conditions. To explain the formation of these ...

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Preparation of direct Z-scheme Bi2Sn2O7/g-C3N4 composite with enhanced photocatalytic performance

05.12.2016 | Author(s): Xiaojuan Zhao, Jiajie Yu, Hongda Cui, Tianhe Wang, Journal of Photochemistry and Photobiology A: Chemistry, 2016

Publication date: 15 February 2017 Source:Journal of Photochemistry and Photobiology A: Chemistry, Volume 335 Author(s): Xiaojuan Zhao, Jiajie Yu, Hongda Cui, Tianhe Wang In this study, for the first time, BSO/g-C3N4 composite photocatalysts were synthesized by high temperature ...

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Properties of aqueous solutions of nonionic surfactants, triton x-114 and tween 80, at temperatures from 293 to 318k: spectroscopic and ultrasonic studies

04.12.2016 | Author(s): Katarzyna Szymczyk, Anna Taraba, Chemical Physics, 2016

Publication date: Available online 28 November 2016 Source:Chemical Physics Author(s): Katarzyna Szymczyk, Anna Taraba The speed of sound, density and refractive index of aqueous solutions of the nonionic surfactants, p-(1,1,3,3-tetramethylbutyl) phenoxypoly(ethyleneglycol) Triton X-114 ...

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New synthetic material removing heavy metals from aqueous solutions and wastewater

04.12.2016 | Author(s): Benayed Houari, Samira Louhibi, Khadidja Tizaoui, Leila Boukli-hacen, Belkacem Benguella, Thier ..., Arabian Journal of Chemistry, 2016

Publication date: Available online 28 November 2016 Source:Arabian Journal of Chemistry Author(s): Benayed Houari, Samira Louhibi, Khadidja Tizaoui, Leila Boukli-hacen, Belkacem Benguella, Thierry Roisnel, Vincent Dorcet ...

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Chemometric approach to study the influence of synthesis parameters on the size of cdte quantum dots obtained from aqueous solutions.

04.12.2016 | Author(s): S. Emilio Navarrete, S. Javier Román, C. Víctor Rojas, N. Rodrigo Henríquez, G. Ricardo Schrebl ..., Arabian Journal of Chemistry, 2016

Publication date: Available online 29 November 2016 Source:Arabian Journal of Chemistry Author(s): S. Emilio Navarrete, S. Javier Román, C. Víctor Rojas, N. Rodrigo Henríquez, G. Ricardo Schrebler, O. Ricardo Córdova, M. Manuel Bravo, C. Eduardo Muñoz This study reports CdTe ...

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Facile synthesis of iridium nanoparticles with superior peroxidase-like activity for colorimetric determination of H2O2 and xanthine

04.12.2016 | Author(s): Malin Cui, Jingdan Zhou, Yuan Zhao, Qijun Song, Sensors and Actuators B: Chemical, 2016

Publication date: May 2017 Source:Sensors and Actuators B: Chemical, Volume 243 Author(s): Malin Cui, Jingdan Zhou, Yuan Zhao, Qijun Song A facile and efficient method was developed for the preparation of iridium nanoparticles (Ir NPs) with superior peroxidase-like activity. Under ...

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