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6.288 Aktuelle Fachpublikationen zum Thema temperature

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A new cooling plus heating mode of liquid phase epitaxy and its application for the oriented film growth

15.04.2015 | L. S. Guo; Y. Y. Chen; X. Yao, CrystEngComm, 2015

Using liquid phase epitaxy (LPE), we developed a new approach to growing a-axis oriented YBa2Cu3O7−δ films (a-films) in air, which have been hard to gain in the prior art since an extremely low supersaturation (σ) is required for their formation. Instead of the conventional step-cooling from a ...


Synthesis carbon-encapsulated NiZn ferrite nanocomposites by in-situ starch coating route combined with hydrogen thermal reduction

12.04.2015 | Author(s): Fuming Liu , Yu Xie , Junhong Duan , Helin Hua , Changlin Yu , Yunhua Gao , Yan Huang , Jianfei P ..., Materials Chemistry and Physics, 2015

Publication date: 5 May 2015 Source:Materials Chemistry and Physics, Volume 158 Author(s): Fuming Liu , Yu Xie , Junhong Duan , Helin Hua , Changlin Yu , Yunhua Gao , Yan Huang , Jianfei Pan , Yun Ling Carbon-encapsulated NiZn ferrite magnetic nanocomposites were successfully ...


Nano-scale carbon onions produced by laser photolysis of toluene for detection of optical, humidity, acetone, methanol and ethanol stimuli

12.04.2015 | Author(s): Baban P. Dhonge , David E. Motaung , Chuan-Pu Liu , Yi-Chang Li , Bonex W. Mwakikunga, Sensors and Actuators B: Chemical, 2015

Publication date: August 2015 Source:Sensors and Actuators B: Chemical, Volume 215 Author(s): Baban P. Dhonge , David E. Motaung , Chuan-Pu Liu , Yi-Chang Li , Bonex W. Mwakikunga Laser liquid medium pyrolysis (LLMP) process has been used to deposit an onion like carbon (OLC) ...


Thermally Induced Aerobic Autopolymerization of Methyl Methacrylate in Amide‐Type Solvents: Simultaneous Polymerization during Induction via Direct In Situ O2 Activation

11.04.2015 | Xiang Liu, Guangqun Zhai, Macromolecular Chemistry and Physics, 2015

The thermally induced spontaneously initiated autopolymerization of methyl methacrylate (MMA) upon air exposure in amide‐type polar solvents at 75–90 °C is unexpectedly observed and then investigated. By using iodometric analysis, it is confirmed that oligo(MMA peroxide)s in situ form at a ...


Controllable Synthesis of Band‐gap Tunable CuSxSe1‐x Nanoplate Alloys

10.04.2015 | Jun XU, Xia YANG, Qingdan YANG, Xing HUANG, Yongbing TANG, Wenjun ZHANG, Chun-Sing Lee, Chemistry - An Asian Journal, 2015

Composition engineering is an important approach for modulating physical properties of alloyed semiconductors. In this work, ternary CuSxSe1−x nanoplates over the entire composition range of 0 ≤ x ≤ 1 have been controllably synthesized via a simple aqueous solution method at low temperature (90 ...


[Report] Molecular nitrogen in comet 67P/Churyumov-Gerasimenko indicates a low formation temperature

10.04.2015 | M. Rubin; K. Altwegg; H. Balsiger; A. Bar-Nun; J.-J. Berthelier; A. Bieler; P. Bochsler; C. Briois; U. Calmonte; M. ..., Science , 2015

Molecular nitrogen (N2) is thought to have been the most abundant form of nitrogen in the protosolar nebula. It is the main N-bearing molecule in the atmospheres of Pluto and Triton and probably the main nitrogen reservoir from which the giant planets formed. Yet in comets, often considered the ...


In Situ Imaging of On-Surface, Solvent-Free Molecular Single-Crystal Growth

10.04.2015 | Guangfeng Liu; Jie Liu; Hao Sun; Xiaoxin Zheng; Yang Liu; Xiaomin Li; He Qi; Xuedong Bai; Kenneth A. Jackson; Xutang Tao, Journal of the American Chemical Society, 2015

The formation of crystalline materials has been studied for more than a century. Recent discoveries about the self-assembly of many inorganic materials, involving aggregation of nanoparticle (NP) precursors or pre-nucleation clusters, challenge the simple assumptions of classical crystallization ...


An Fe/N co-doped graphitic carbon bulb for high-performance oxygen reduction reaction

09.04.2015 | Ruifeng Zhou; Shi Zhang Qiao, Chemical Communication, 2015

An Fe/N co-doped graphitic carbon bulb is synthesized by Prussian blue with a pyrolysis temperature as low as 550 °C. Fe facilitates the formation of a graphitic structure, while low temperature guarantees high level of nitrogen. The product shows excellent oxygen reduction reaction catalytic ...


Energetics of sodium–calcium exchanged zeolite A

09.04.2015 | H. Sun; D. Wu; X. Guo; B. Shen; A. Navrotsky, Physical Chemistry Chemical Physics, 2015

A series of calcium-exchanged zeolite A samples with different degrees of exchange were prepared. They were characterized by powder X-ray diffraction (XRD) and differential scanning calorimetry (DSC). High temperature oxide melt drop solution calorimetry measured the formation enthalpies of ...


Generation of Crystalline Microcontainers of Salicylic Acid

08.04.2015 | Julia Seidel, Joachim Ulrich, Chemical Engineering & Technology, 2015

Abstract The formation of liquid inclusions is frequently observed to be disrupting in crystallization processes. But such crystals containing liquid inclusions might offer the possibility to be used as container systems by encapsulating other substances inside the inclusions. Experimental ...


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