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2.178 Aktuelle Fachpublikationen zum Thema temperature

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Stability, Equilibrium Morphology and Hydration of ZrC (111) and (110) Surfaces with H2O: A Periodic DFT and Atomistic Thermodynamics Study

29.07.2015 | OSEI-AGYEMANG Eric; Jean-François Paul; Romain Lucas; Foucaud sylvie; Sylvain Cristol, Physical Chemistry Chemical Physics, 2015

ZrC is a non-oxide Ultra High Temperature Ceramic (UHTC) with excellent physical and mechanical properties used in nuclear plants and jet propulsion engines. However, mechanical properties can be lost because of the easy oxidation of its grain surfaces. One way of dealing with such problem is to ...

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Catalytic etching of monolayer graphene at low temperature via carbon oxidation

28.07.2015 | Jun Eun Jin; Jae-Hyun Lee; Jun Hee Choi; Ho-Kyun Jang; Junhong Na; Dongmok Whang; Do-Hyun Kim; Gyu Tae Kim, Physical Chemistry Chemical Physics, 2015

In this work, an easy method to etch monolayer graphene is shown by using catalytic oxidation in the presence of ZnO nanoparticles (NPs). The catalytic etching of monolayer graphene, which was transferred to the channel of field-effect transistors (FETs), was performed at low temperature by ...

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Compressibility and structural stability of spinel-type MnIn2O4

26.07.2015 | Author(s): Maged F. Bekheet, Leonid Dubrovinsky, Aleksander Gurlo, Journal of Solid State Chemistry, 2015

Publication date: October 2015 Source:Journal of Solid State Chemistry, Volume 230 Author(s): Maged F. Bekheet, Leonid Dubrovinsky, Aleksander Gurlo Spinel-type MnIn2O4 materials are synthesized at 500°C from an In3+–Mn3+ co-precipitate; the synthesis is based on the in situ reduction ...

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Influence of the Solvent on the “Casting” Methodology for MWCNT‐Modified Glassy Carbon and Platinum Electrodes

21.07.2015 | Ana Carolina Ângelo Dorim, Herbert Aleixo, Edilton de Souza Barcellos, Leonardo Luiz Okumura, Electroanalysis, 2015

Abstract The choice of electrode material and surface preparation method are usually dictated by the suitability of the electrode to observe an electrochemical parameter, such as heterogeneous electron transfer rate, surface coverage, or redox potential. Thus, the glassy carbon (GC) and ...

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Low temperature in situ Raman spectroscopy of an electro-generated arylbis(arylthio)sulfonium ion

21.07.2015 | Kouichi Matsumoto; Yu Miyamoto; Kazuaki Shimada; Yusuke Morisawa; Hendrik Zipse; Seiji Suga; Jun-ichi Yoshida; Shige ..., Chemical Communication, 2015

A low temperature in situ Raman spectroscopic method was developed for the detection of unstable intermediates in electro-organic chemistry. It was effective for monitoring the generation of ArS(ArSSAr)+ by the electrochemical oxidation of ArSSAr (Ar = p-FC6H4) in Bu4NBF4/CH2Cl2 at 195 K. The ...

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The X‐ray photoelectron spectroscopy and high‐temperature structural studies of Zn1−xNixO/NiO two‐phase composites

20.07.2015 | D. C. Joshi, S. Nayak, P. Suresh, K. S. Suresh, B. V. Manoj Kumar, S. Thota, physica status solidi (b), 2015

Abstract Abstractauthoren Detailed investigation of the chemical states and local atomic environment of Ni and Zn in the two‐phase composites of ZnNiO/NiO was reported. The X‐ray photoelectron spectra of both Ni‐2p and Zn‐2p revealed the existence of a doublet with spin‐orbit splitting 17.9 ...

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Electrically Active and Inactive Single Grain Boundaries in Semiconducting BaTiO3

20.07.2015 | Seok‐Hyun Yoon, Journal of the American Ceramic Society, 2015

Bi‐crystal specimens were prepared from Nb and Mn‐doped BaTiO3 poly‐crystals with giant grains of millimeter order in size, and the resistance (R) versus temperature (T) characteristics of these individual grain boundaries was investigated. The electrically active grain boundaries that show ...

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On the mechanism of zirconium nitride formation by zirconium, zirconia and yttria burning in air

19.07.2015 | Author(s): Ekaterina Malikova, Julia Pautova, Alexander Gromov, Konstantin Monogarov, Kirill Larionov, Ulr ..., Journal of Solid State Chemistry, 2015

Publication date: October 2015 Source:Journal of Solid State Chemistry, Volume 230 Author(s): Ekaterina Malikova, Julia Pautova, Alexander Gromov, Konstantin Monogarov, Kirill Larionov, Ulrich Teipel The combustion of Zr and (Zr+ZrO2) powdery mixtures in air was accompanied by ...

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Structural investigations of PuIII phosphate by X-ray diffraction, MAS-NMR and XANES spectroscopy

19.07.2015 | Author(s): Karin Popa, Philippe E. Raison, Laura Martel, Philippe M. Martin, Damien Prieur, Pier L. Sola ..., Journal of Solid State Chemistry, 2015

Publication date: October 2015 Source:Journal of Solid State Chemistry, Volume 230 Author(s): Karin Popa, Philippe E. Raison, Laura Martel, Philippe M. Martin, Damien Prieur, Pier L. Solari, Daniel Bouëxière, Rudy J.M. Konings, Joseph Somers PuPO4 was prepared by a solid ...

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Characterization of Cr‐doped Sb2Te3 films and their application to phase‐change memory

17.07.2015 | Qing Wang, Bo Liu, Yangyang Xia, Yonghui Zheng, Ruru Huo, Min Zhu, Sannian Song, Shilong Lv, Yan Cheng, Zhitang Song ..., physica status solidi (RRL) - Rapid Research Letters, 2015

Phase‐change memory (PCM) is regarded as one of the most promising candidates for the next‐generation nonvolatile memory. Its storage medium, phase‐change material, has attracted continuous exploration. Along the traditional GeTe–Sb2Te3 tie line, the binary compound Sb2Te3 is a high‐speed ...

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