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46.794 Aktuelle Fachpublikationen zum Thema temperature

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Facile preparation of supramolecular ionogels exhibiting high temperature durability as solid electrolytes

01.12.2015 | Tao Zhou; Xinpei Gao; Fei Lu; Na Sun; Liqiang Zheng, New Journal of Chemistry, 2015

Ionogels, solid-like materials maintaining many of the physicochemical properties of ionic liquids, have aroused much interest as excellent functional materials. Here, a facile strategy of the preparation of supramolecular ionogels is reported. Benzenetricarboxylic acid (H3BTC) and Fe(NO3)3·9H2O ...


A Study of Interfacial Resistive Switching Mechanism by Proton Exchange Reactions on SiOx layer

01.12.2015 | Fei Zhou; Yao-Feng Chang; Ying-Chen Chen; Xiaohan Wu; Ye Zhang; Burt W Fowler; Jack C. Lee, Physical Chemistry Chemical Physics, 2015

In this work, we investigated SiOx–based interfacial resistive switching in planar metal-insulator-metal structuresusing physical/chemical/electrical analyses. This work helps clarify the interfacial reaction process and mechanism in SiOx, andalso shows thepotential for high temperature ...


Investigation of luminescence properties and the energy transfer mechanism of tunable emitting Sr3Y2(Si3O9)2:Eu2+,Tb3+ phosphors

01.12.2015 | Mengfei Zhang; Yujun Liang; Shuangyu Xu; Yingli Zhu; Xingya Wu; Shiqi Liu, CrystEngComm, 2015

A series of Eu2+ and Tb3+ singly-doped and co-doped Sr3Y2(Si3O9)2 (SYSO) phosphors have been synthesized via a conventional high-temperature solid-state reaction. The crystal structures, photoluminescence properties, fluorescence lifetimes, thermal properties and energy transfer of SYSO:Eu2+,Tb3+ ...


Total chemical synthesis of a polymer/graphene nanocomposite

01.12.2015 | Rodrigo Villegas Salvatierra; Carlos Cava; Luciamara Roman; Marcela M. Oliveira; Aldo J.G. Zarbin, Chemical Communication, 2015

A versatile and room temperature synthesis of thin films of polymer/graphene is reported. Drastically differing from other methods, not only the polymer but also the graphene are completely build from their simplest monomers (thiophene and benzene) in a one-pot polymerization reaction at a ...


V2O5/SBA-15 nanocatalysts for the selective synthesis of 2,3,5-trimethyl-1,4-benzoquinone at room temperature

01.12.2015 | Chinna Krishna Prasad Neeli; Venkata Siva Prasad Ganjala; Venkateswarlu Vakati; Kamaraju Seetha Rama Rao; David Raju ..., New Journal of Chemistry, 2015

A series of four V2O5/SBA-15 catalysts with the loadings of 5, 7.5, 10 and 12.5% (by weight) V2O5 have been prepared by the molecular designed dispersion (MDD) method and are characterized by N2-physisorption, low-angle and wide-angle XRD, transmission electron microscopy (TEM), Fourier ...


Reversible hydrogen activation by a bulky haloborane based FLP system

01.12.2015 | Marc-André Courtemanche; Étienne Rochette; Marc-André Légaré; Wenhua Bi; Frédéric-Georges Fontaine, Dalton Transactions, 2015

The FLP species bis(2-(TMP)phenyl)chloroborane (TMP = 2,2,6,6-tetramethylpiperidine)(1) was prepared and crystallized as a monomeric Frustrated Lewis Pair (FLP) displaying no apparent B–N interaction. Species 1 readily reacts with H2 at room temperature to generate reversibly the zwitterionic H2 ...


Observation and modeling of the conformational molecular structures driving the self-assembly of tri-adamantylbenzene on Ag(111)

01.12.2015 | Roland Coratger; Bastien Calmettes; Nicolas Estrampes; Christophe Coudret; JORDI FARAUDO; THOMAS ROUSSEL, Physical Chemistry Chemical Physics, 2015

The self-organization of tri-Adamantyl (TAB) benzene molecules has been investigated using low temperature scanning tunneling microscopy (LT-STM). The molecular structures have been also studied using molecular modeling. Particularly, these calculations have been performed on large areas (1000 ...


Cyclopropanes in water: A diastereoselective synthesis of substituted 2H-chromen-2-one and quinolin-2(1H)-one linked cyclopropanes.

01.12.2015 | Ashish Anand; Jayashree Yenagi; Jagdish Tonannavar; Manohar Kulkarni, Green Chemistry, 2015

One-pot three component reaction has been developed for the synthesis of substituted cyclopropanes employing 4-bromomethyl-2H-chromen-2-one/quinolin-2(1H)-ones, aromatic aldehydes and activated nitriles. The room temperature reaction in aqueous medium has been found to be diastereoselective and ...


Visible Light-Promoted C−H Functionalization of Ethers and Electron-Deficient Arenes

01.12.2015 | Shekaraiah devari; Bhahwal Ali Shah, Chemical Communication, 2015

We have developed a visible light mediated C-H arylation of ethers via C(Sp2-)C(¬Sp3) C-H functionalization via hydrogen atom transfer (HAT) pathway. The reaction requires no photocatalyst, operates at room temperature, easy setup and scalable to gram level. Furthermore, the protocol is easily ...


Tumor Cell-Specific Split Aptamers: Target-Driven and Temperature-Controlled Self-Assembly on Living Cell Surface

01.12.2015 | Jinlu Tang; Hui Shi; Xiaoxiao He; Yanli Lei; Qiuping Guo; Kemin Wang; Lv’an Yan; Dinggeng He, Chemical Communication, 2015

Activatable split aptamer probe with target-induced shape change and thermosensitivity was first developed. Triggered by proteins on cell surface, the probe could assemble into a desired binding shape, thus affording a FRET-based tumor cell assay. Moreover, a reversible cell catch/release ...


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