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51.498 Aktuelle Fachpublikationen zum Thema temperature

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Crystallographic fusion behavior and interface evolution of mono-layer BaTiO3 nanocube arrangement

10.02.2016 | Qiang Ma; Kazumi Kato, CrystEngComm, 2016

A crystallographic fusion behavior between BaTiO3 nanocubes with variable sintering temperature and geometry was investigated by precise analysis using high resolution transmission electron microscopy (HRTEM). The fine orderly microstructure of the nanocube arrangement was retained even after a ...

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A lanthanide(III) metal-organic framework exhibiting ratiometric luminescent temperature sensing and tunable white light emission

10.02.2016 | Lanlan Wu; Junfang zhao; Hui Wang; Jingyuan Wang, CrystEngComm, 2016

A new lanthanide(III) metal-organic framework was constructed as well as the codoped compounds. The ratiometric luminescent thermometer Eu0.0878Tb0.9122L exhibits a good linear relationship respect to the temperature range of 75-250 K. White light emission can be realized by varying the ...

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Cooperative effects of different temperatures and pressures on initial and subsequent decompositions of nitrogen-rich energetic crystal 3,3’-dinitroamino-4,4’-azoxyfurazan

10.02.2016 | Qiong Wu; Weihua Zhu; Heming Xiao, Physical Chemistry Chemical Physics, 2016

We performed ab initio molecular dynamics simulations to study the initiation mechanisms and subsequent chemical decompositions of nitrogen-rich furazan explosive 3,3′-dinitroamino-4,4′-azoxyfurazan (DNAAF) under low temperature (363-963 K) coupled with different pressures (1-5 GPa). Two ...

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Ambient controlled synthesis of advanced core-shell plasmonic Ag@ZnO photocatalysts

10.02.2016 | Jinyan Xiong; Qiao Sun; Jun Chen; Zhen Li; Shixue Dou, CrystEngComm, 2016

Plasmonic Ag@ZnO core-shell hybrids, including hetero-nanowires and hetero-nanoparticles, have been synthesized at room temperature for application in photocatalysis. The morphology, size, crystal structure, and composition of the products were investigated by X-ray diffraction, scanning and ...

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A Perspective On Low-Temperature Solid Oxide Fuel Cells

10.02.2016 | ZHAN GAO; Liliana Veronica Mogni; Elizabeth C. Miller; Justin Gary Railsback; Scott Barnett, Energy & Environmental Science, 2016

This article provides a perspective on solid oxide fuel cells operating at low temperature, defined here to be the range from ~ 400oC to 650oC. These low-temperature solid oxide fuel cells (LT-SOFCs) have seen considerable research and development and are widely viewed as the “next generation” ...

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Production of 2,5-hexanedione and 3-methyl-2-cyclopenten-1-one from 5-hydroxymethylfurfural

10.02.2016 | Dezhang Ren; Zhiyuan Song; Lu Li; Yunjie Liu; Fangming Jin; Zhibao Huo, Green Chemistry, 2016

A novel approach for production of 2,5-hexanedione (HDN) and 3-methyl-2-cyclopenten-1-one (3-MCO) from 5-hydroxymethylfurfural (HMF) by water splitting with Zn is reported for the first time. The use of high temperature water (HTW) conditions is key for the efficient conversion of HMF to HDN and ...

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Equation of state for water and its line of density maxima down to −120 MPa

10.02.2016 | Gaël Pallares; Miguel A. Gonzalez; Jose Luis F. Abascal; Chantal Valeriani; Frédéric Caupin, Physical Chemistry Chemical Physics, 2016

As water is involved in countless natural and industrial processes, its thermodynamic properties have been measured in a wide temperature and pressure range. Data on supercooled water are also available down to −73 °C and up to 400 MPa. In contrast, data at negative pressures are extremely ...

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ZnO nanorod/porous silicon nanowire hybrid structures as highly-sensitive NO2 gas sensors at room temperature

09.02.2016 | Jiecui Liao; Zhengcao Li; Guojing Wang; Chienhua Chen; Shasha Lv; Mingyang Li, Physical Chemistry Chemical Physics, 2016

ZnO nanorod/porous silicon nanowire (ZnO/PSiNW) hybrids with three different structures as highly sensitive NO2 gas sensors were obtained. PSiNWs were first synthesized by metal-assisted chemical etching, and then seeded in three different ways. After that ZnO nanorods were grown on the seeded ...

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Unusual temperature dependence of elastic constants of an ambient-temperature discotic nematic liquid crystal

09.02.2016 | D Venkata Dasari; Giorgio Mirri; P Kouwer; Rasmita Sahoo; Igor Musevic; Surajit Dhara, Soft Matter, 2016

We report first experimental studies on the temperature dependence of viscoelastic properties of a room temperature discotic nematic liquid crystal. The splay elastic constant is greater than the bend elastic constant and both show unusual temperature and order parameter dependence. The ...

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Control of interpenetration in a microporous metal–organic framework for significantly enhanced C2H2/CO2 separation at room temperature

09.02.2016 | Ganggang Chang; Bin Li; Hailong Wang; Tongliang Hu; Zongbi Bao; Banglin Chen, Chemical Communication, 2016

A novel non-interpenetrated three-dimensional porous metal–organic framework UTSA-68 has been controllably synthesized by altering the reaction conditions. The resulting UTSA-68a shows a notably higher porosity and adsorption selectivity (3.5–5) for C2H2/CO2 separation compared to that of doubly ...

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