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50.087 Aktuelle Fachpublikationen zum Thema temperature

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Enhanced electron spin rotation in CdS quantum dots

02.09.2015 | Yasuaki Masumoto; Hikaru Umino; Jianhui Sun; Eri Suzumura, Physical Chemistry Chemical Physics, 2015

We studied the spin rotation of electrons in CdS quantum dots (QDs) and CdS QDs with charge acceptors by means of time-resolved Faraday rotation (TRFR) at room temperature. The electron spin rotation gave an oscillatory component in TRFR signal and the oscillation frequency proportional to ...

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Tri-chromatic white-light emission from a single-phase Ca9Sc(PO4)7: Eu2+, Tb3+, Mn2+ phosphor for LED applications

02.09.2015 | Lihong Jiang; Ran Pang; Da Li; Wenzhi Sun; Yonglei Jia; Haifeng Li; Jipeng Fu; Chengyu Li; Su Zhang, Dalton Transactions, 2015

A series of single-phase Ca9Sc(PO4)7: Eu2+, Tb3+, Mn2+ phosphors for UV excitations were synthesized by high-temperature solid-state reaction. Energy transfer from Eu2+→Tb3+ and Eu2+→Mn2+ in Ca9Sc(PO4)7 sample is a feasible route to realize color-tunable emission because Ca9Sc(PO4)7 single-doped ...

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Adsorption and interaction of CO2 on rutile TiO2(110) surfaces: a combined UHV-FTIRS and theoretical simulation study

02.09.2015 | Yunjun Cao; Shujun Hu; Min Yu; Shishen Yan; Mingchun Xu, Physical Chemistry Chemical Physics, 2015

CO2 adsorption and interaction on rutile TiO2(110) surfaces was studied by UHV-FTIRS combined with theoretical simulations. With increasing CO2 exposure, CO2 adsorbs in succession at the oxygen vacancy (Vo) sites, on the five-coordinated Ti cation (Ti5c) sites and the bridging oxygen (Obr) sites ...

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Anisotropic displacement parameters from dispersion-corrected DFT methods and their experimental validation by temperature-dependent X-ray diffraction

02.09.2015 | Janine George; Ai Wang; Volker L. Deringer; Ruimin Wang; Richard Dronskowski; Ulli Englert, CrystEngComm, 2015

In chemical crystallography, the thermal motion of scattering centers is commonly described by anisotropic displacement parameters (ADPs). Very recently, it has been shown that ADPs are not only accessible by diffraction experiments but also via theory: this emerging approach seems promising but ...

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Facile synthesis of core/shell ZnO/ZnS nanofibers by electrospinning and gas-phase sulfidation for biosensor applications

02.09.2015 | Anna Baranowska-Korczyc; Kamil Sobczak; Piotr Dłużewski; Anna Reszka; Bogdan J. Kowalski; Łukasz Kłopotowski; Danek ..., Physical Chemistry Chemical Physics, 2015

This study describes a new method of passivating ZnO nanofiber-based devices with a ZnS layer. This one-step process was carried out in H2S gas at room temperature, and resulted in the formation of core/shell ZnO/ZnS nanofibers. This study presents the structural, optical and electrical ...

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Metallic Particle Assemblies on Graphene

02.09.2015 | Gkikas, Manos, Organic Chemistry, 2015

Abstract: Different approaches to obtain metallic particles on graphene are discussed in this Review article and their applications in catalysis, electrocatalysis and surface enhanced Raman spectroscopy (SERS) are highlighted. Synthetic methods for well-dispersed metallic particles (Au, Ag, ...

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A new approach for reconstructing Holocene temperatures from a multi-species long chain alkenone record from Lake Qinghai on the northeastern Tibetan Plateau

30.08.2015 | Author(s): Zheng Wang, Zhonghui Liu, Fan Zhang, Mingyi Fu, Zhisheng An, Organic Geochemistry, 2015

Publication date: Available online 24 August 2015 Source:Organic Geochemistry Author(s): Zheng Wang, Zhonghui Liu, Fan Zhang, Mingyi Fu, Zhisheng An The extent of unsaturation in long chain alkenones (LCKs) in lakes has potential for quantitatively indicating paleotemperature in ...

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Synthesis and characterization of dual-stimuli-responsive micelles based on poly(N-isopropylacrylamide) and polycarbonate with photocleavable moieties

30.08.2015 | Author(s): Jia-You Fang, Yin-Ku Lin, Shiu-Wei Wang, You-Chen Li, Ren-Shen Lee, Reactive and Functional Polymers, 2015

Publication date: October 2015 Source:Reactive and Functional Polymers, Volume 95 Author(s): Jia-You Fang, Yin-Ku Lin, Shiu-Wei Wang, You-Chen Li, Ren-Shen Lee Dual-sensitive block copolymers, PNiPAAm-b-PNBTMC, were synthesized via the ring-opening polymerization of ...

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Fatty acid composition in double and multilayered microcapsules of ω-3 as affected by storage conditions and type of emulsions

30.08.2015 | Author(s): Estefanía Jiménez-Martín, Teresa Antequera Rojas, Adem Gharsallaoui, Jorge Ruiz Carrascal, Trinid ..., Food Chemistry, 2015

Publication date: 1 March 2016 Source:Food Chemistry, Volume 194 Author(s): Estefanía Jiménez-Martín, Teresa Antequera Rojas, Adem Gharsallaoui, Jorge Ruiz Carrascal, Trinidad Pérez-Palacios Spray-dried microcapsules from double (DM) and multilayered (MM) fish oil emulsions were ...

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Quality and microbial safety evaluation of new isotonic beverages upon thermal treatments

30.08.2015 | Author(s): Amadeo Gironés-Vilaplana, Juan-Pablo Huertas, Diego A. Moreno, Paula M. Periago, Cristina Garcí ..., Food Chemistry, 2015

Publication date: 1 March 2016 Source:Food Chemistry, Volume 194 Author(s): Amadeo Gironés-Vilaplana, Juan-Pablo Huertas, Diego A. Moreno, Paula M. Periago, Cristina García-Viguera In the present study, it was evaluated how two different thermal treatments (Mild and Severe) may ...

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