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2.118 Aktuelle Fachpublikationen zum Thema temperature

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Assembly of Mesoporous Metal–Organic Framework Templated by an Ionic Liquid/Ethylene Glycol Interface

15.05.2015 | Xinxin Sang, Jianling Zhang, Li Peng, Chengcheng Liu, Xue Ma, Buxing Han, Guanying Yang, ChemPhysChem, 2015

Abstract We propose a facile room‐temperature synthesis of a metal–organic framework (MOF) with a bimodal mesoporous structure (3.9 and 17‐28 nm) in an ionic liquid (IL)/ethylene glycol (EG) mixture. The X‐ray diffraction analysis reveals that MOF formation can be efficiently promoted by the ...

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Spin-Reconstructed Proton-Coupled Electron Transfer in a Ferrocene–Nickeladithiolene Hybrid

14.05.2015 | Akira Tanushi; Tetsuro Kusamoto; Yohei Hattori; Kenji Takada; Hiroshi Nishihara, Journal of the American Chemical Society, 2015

A proton–electron dual-responsive system based on a hybrid of ferrocene and metalladithiolene (1) was developed. The formation of the dithiafulvenium moiety was driven by protonation of the metalladithiolene unit of 1 and by oxidation. The change in the electronic structure caused by the ...

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Insights into the gas phase oxidation of Ru(0001) on the mesoscopic scale using molecular oxygen

14.05.2015 | Jan C. Goritzka; Benjamin Herd; Philipp P. T. Krause; Jens Falta; J. Ingo Flege; Herbert Over, Physical Chemistry Chemical Physics, 2015

We present an extensive mesoscale study of the initial gas phase oxidation of Ru(0001), employing in situ low-energy electron microscopy (LEEM), micro low-energy electron diffraction (μ-LEED) and scanning tunneling microscopy (STM). The initial oxidation was investigated in a temperature range of ...

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Impact of thermal oxidation pressure and temperature on deactivation of the interfacial trap states in Al2O3/GaAs MOS capacitor

14.05.2015 | Hajin Lim, Seongkyung Kim, Joon Rae Kim, Ji Hun Song, Nae‐In Lee, Jae Kyeong Jeong, Hyeong Joon Kim, physica status solidi (a), 2015

Although GaAs is one of the most attractive channel materials for achieving high electron mobility, reduction of the interface state is still required for high quality MOS devices. In this paper, thermal oxidation under two pressures and various temperatures, and subsequent HF etching were ...

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2H-CuScO2 Prepared by Low-Temperature Hydrothermal Methods and Post-Annealing Effects on Optical and Photoelectrochemical Properties

13.05.2015 | Thomas I. Draskovic; Mingzhe Yu; Yiying Wu, Inorganic Chemistry, 2015

The delafossite structured CuScO2 is a p-type, wide band gap oxide that has been shown to support significant oxygen intercalation, leading to darkened color and increased conductivity. Control of this oxidation proves difficult by the conventional high-temperature solid-state syntheses. In ...

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Deposition of MnO Anode and MnO2 Cathode Thin Films by Plasma Enhanced Atomic Layer Deposition Using the Mn(thd)3 Precursor

13.05.2015 | Felix Mattelaer; Philippe M. Vereecken; Jolien Dendooven; Christophe Detavernier, Chemistry of Materials, 2015

Atomic layer deposition (ALD) of a wide range of Mn oxides (MnO to MnO2) is demonstrated by combining the Mn(thd)3 (tris(2,2,6,6-tetramethyl-3,5-heptanedionato)manganese) precursor with different types of plasma activated reactant gases. Typical ALD behavior is found with hydrogen, ammonia, and ...

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Optimal Design of a Trickle Bed Reactor for Light Fuel Oxidative Desulfurization Based on Experiments and Modeling

13.05.2015 | Amer T. Nawaf; Saba A. Gheni; Aysar T. Jarullah; Iqbal M. Mujtaba, Energy & Fuels, 2015

In this work, the performance of oxidative desulfurization (ODS) of dibenzothiophene (DBT) in light gas oil (LGO) is evaluated with a homemade manganese oxide (MnO2/γ-Al2O3) catalyst. The catalyst is prepared by the incipient wetness impregnation (IWI) method with air under moderate operating ...

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Cobalt‐iron oxides made by CVD for low temperature catalytic application

12.05.2015 | Patrick Mountapmbeme Kouotou, Zhen‐Yu Tian, physica status solidi (a), 2015

Thin films of cobalt‐iron oxides (CoFe2O4) with spinel‐type structure were prepared by pulsed‐spray evaporation chemical vapor deposition (PSE‐CVD) using Fe(acac)3 and Co(acac)3 as precursors. The optimal depositions of CVD‐type growth have been established and such growth can be achieved at ...

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Magnetic susceptibility of Mn(III) complexes of hydroxamate siderophores

10.05.2015 | Author(s): Stephen D. Springer , Alison Butler, Journal of Inorganic Biochemistry, 2015

Publication date: Available online 9 May 2015 Source:Journal of Inorganic Biochemistry Author(s): Stephen D. Springer , Alison Butler The hydroxamate siderophores putrebactin, desferrioxamine B, and desferrioxamine E bind Mn(II) and promote the air oxidation of Mn(II) to Mn(III) at pH ...

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Creating a Protective Shell for Reactive MoSi2 Particles in High‐Temperature Ceramics

09.05.2015 | Alexandra L. Carabat, Sybrand Zwaag, Willem G. Sloof, Journal of the American Ceramic Society, 2015

Alumina encapsulated molybdenum silicide (MoSi2) intermetallic particles were synthesized using a simple precipitation method followed by calcining at temperatures of 800°C–1000°C, to prevent the premature oxidation of MoSi2 at high temperatures. The shell composition and the influence of the ...

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