Meine Merkliste  

45.325 Aktuelle Fachpublikationen zum Thema temperature

mit folgenden Suchkriterien:

Promising gaseous and electrochemical hydrogen storage properties of porous Mg–Pd films under mild conditions

21.05.2015 | Gongbiao Xin; Huiping Yuan; Lijun Jiang; Shumao Wang; Xiaopeng Liu; Xingguo Li, Physical Chemistry Chemical Physics, 2015

In this paper, the gaseous and electrochemical hydrogen storage properties of 200 nm Mg–Pd thin films with different morphologies have been investigated. The results show that Mg–Pd films become porous with the increase of substrate temperature. Porous Mg–Pd films exhibit superior gaseous and ...


Low-Temperature VUV Photoluminescence and Thermoluminescence of UV Excited Afterglow Phosphor Sr3AlxSi1-xO5:Ce3+, Ln3+ (Ln=Er, Nd, Sm, Dy and Tm)

21.05.2015 | Hongde Luo; Adrie Bos; Anna P Dobrowolska; Pieter Dorenbos, Physical Chemistry Chemical Physics, 2015

Low-temperature (10 K) photoluminescence excitation and emission spectra of undoped Sr3SiO5 as well as Ce3+ and Eu3+ single doped Sr3SiO5 have been investigated. It shows the host exciton band and the O2- to Eu3+ charge transfer band at 5.98 eV (207 nm) and 3.87 eV (320 nm) respectively. ...


Structure and magnetic properties of an unusual homoleptic iron(III) thiocyanate dimer

21.05.2015 | Martin Lemaire; Alan J. Lough; Danielle Dinsdale, Dalton Transactions, 2015

We describe the structural and variable temperature magnetic susceptibility properties of an unusual homoleptic bimetallic iron(III) thiocyanate tetraanion. This work represents the first structurally characterized bis(μ-1,3-thiocyanato) dimer of iron(III). A weak antiferromagnetic exchange ...


Visible room-temperature phosphorescence of pure organic crystals via a radical-ion-pair mechanism

20.05.2015 | Shinichi Kuno; Hiroshi Akeno; Hiroyuki Ohtani; Hideya Yuasa, Physical Chemistry Chemical Physics, 2015

The afterglow of phosphorescent compounds can be distinguished from background fluorescence and scattered light by a time-resolved observation, which is a beneficial property for bioimaging. Phosphorescence emission accompanies spin-forbidden transitions from an excited singlet state through an ...


Energy transfer and unusual decay behaviour of BaCa2Si3O9:Eu2+,Mn2+ phosphor

20.05.2015 | Matthias Müller; Thomas Jüstel, Dalton Transactions, 2015

In this work the photoluminescence (PL) of BaCa2Si3O9:Eu2+,Mn2+ and the energy transfer (ET) between Eu2+ and Mn2+ were examined. A series of powder samples with various Mn2+ concentrations were prepared by high temperature solid state route. Phase purity was investigated using X-ray powder ...


Synthesis and Luminescence properties in H2 annealing Mn-doped Y3Al5O12:Ce3+ single crystal for W-LEDs

20.05.2015 | Guorui Gu; Weidong Xiang; Cheng Yang; Xiaojuan Liang, CrystEngComm, 2015

Czochralski grown Mn-doped Y3Al5O12:Ce3+ single crystal was thermally annealed in H2 atmosphere at different temperature for 6 h and the corresponding absorption spectra, emission spectra, quantum yield (QY) and color-electric performance of Ce,Mn:YAG single crystal wafers were investigated ...


Infrared Nonlinear Optical Properties of Lithium-containing Diamond-Like Semiconductors Li2ZnGeSe4 and Li2ZnSnSe4

20.05.2015 | Jian-Han Zhang; Daniel Clark; Jacilynn Brant; Charles Sinagra; Yong Kim; Joon Jang; Jennifer A. Aitken, Dalton Transactions, 2015

Two new lithium-containing diamond-like semiconductors, Li2ZnGeSe4 and Li2ZnSnSe4, have been prepared by high-temperature, solid-state synthesis. Single crystal X-ray diffraction reveals that both compounds adopt the wurtz-kesterite structure type, crystallizing in the noncentrosymmetric space ...


Mild electrophilic trifluoromethylthiolation of ketones with trifluoromethanesulfanamide

20.05.2015 | Wei Wu; Xuxue Zhang; Fang Liang; Song Cao, Organic & Biomolecular Chemistry, 2015

A straightforward and convenient approach for trifluoro-methylthiolation of various acyclic and cyclic ketones with PhNHSCF3 was described. The reaction proceeds smoothly in the presence of acetyl chloride at room temperature and affords α-trifluoromethylthiolated ketones in fair to good yields.


An Infrared Spectroscopic and Theoretical Study on (CH3)3N-H+-(H2O)n, n = 1 – 22: Highly Polarized Hydrogen Bond Networks of Hydrated Clusters

20.05.2015 | Ryunosuke Shishido; Yin- Chen Li; Chen-Wei Tsai; Dan Bing; Asuka Fuji; Jer-Lai Kuo, Physical Chemistry Chemical Physics, 2015

Infrared spectra of protonated trimethylamine (TMA) - water clusters, (CH3)3N-H+-(H2O)n (n = 1 – 22) were measured in the OH stretching vibrational region by size-selective photodissociation spectroscopy. Density functional theory calculations of stable structures were performed, and temperature ...


4-(Dimethylamino)pyridine-Catalysed Iodolactonisation of [gamma],[small delta]-Unsaturated Carboxylic Acids

20.05.2015 | Chuisong Meng; Zhihui Liu; Yu-Xiu Liu; Quingmin Wang, Organic & Biomolecular Chemistry, 2015

4-(Dimethylamino)pyridine functioned as an excellent catalyst for iodolactonisation reactions of γ,δ-unsaturated carboxylic acids, affording γ-lactones, δ-lactones, or both under neutral conditions at room temperature. The effects of substrate structure on the iodolactonisation were investigated, ...


Seite 1 von 4533
Suche per e-Mail abonnieren

Sie erhalten passend zu Ihrer Suche die neusten Suchergebnisse per E-Mail. Dieser Service ist für Sie kostenlos und kann jederzeit abbestellt werden.

Ihr Bowser ist nicht aktuell. Microsoft Internet Explorer 6.0 unterstützt einige Funktionen auf Chemie.DE nicht.