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1.673 Aktuelle Fachpublikationen zum Thema temperature

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Nanoscale Ordering in Oxygen Deficient Quintuple Perovskite Sm2-εBa3+εFe5O15-δ: Implication for Magnetism and Oxygen Stoichiometry

23.10.2014 | Nadezhda E. Volkova; Oleg I. Lebedev; Ludmila Ya. Gavrilova; Stuart Turner; Nicolas Gauquelin; Md. Motin Seikh; Vinc ..., Chemistry of Materials, 2014

The investigation of the system Sm–Ba–Fe-O in air has allowed an oxygen deficient perovskite Sm2-εBa3+εFe5O15-δ (δ = 0.75, ε = 0.125) to be synthesized. In contrast to the XRPD pattern which gives a cubic symmetry (ap = 3.934 Å), the combined HREM/EELS study shows that this phase is nanoscale ...


Nanoconfined LiBH4 as a Fast Lithium Ion Conductor

22.10.2014 | Didier Blanchard, Angeloclaudio Nale, Dadi Sveinbjörnsson, Tamara M. Eggenhuisen, Margriet H. W. Verkuijlen, Suwarno ..., Advanced Functional Materials, 2014

Designing new functional materials is crucial for the development of efficient energy storage and conversion devices such as all solid‐state batteries. LiBH4 is a promising solid electrolyte for Li‐ion batteries. It displays high lithium mobility, although only above 110 °C at which a transition ...


New dicationic piperidinium hexafluorophosphate ILs, synthesis, characterization and dielectric measurements

21.10.2014 | Author(s): Boumediene Haddad , Didier Villemin , El-habib Belarbi , Nathalie Bar , Mustapha Rahmouni, Arabian Journal of Chemistry, 2014

Publication date: November 2014 Source:Arabian Journal of Chemistry, Volume 7, Issue 5 Author(s): Boumediene Haddad , Didier Villemin , El-habib Belarbi , Nathalie Bar , Mustapha Rahmouni A new class of dicationic ionic liquids (ILs) were synthesized for electrochemical applications at ...


In‐Situ Confined Growth of Monodisperse Pt Nanoparticle@Graphene Nanobox Composites as Electrocatalytic Nanoreactors

20.10.2014 | Yingying Lv, Yin Fang, Zhangxiong Wu, Xufang Qian, Yanfang Song, Renchao Che, Abdullah M. Asiri, Yongyao Xia, Bo Tu, ..., Small, 2014

Monodisperse Pt nanoparticles (NPs) studded in a three‐dimensional (3D) graphene nanobox are successfully synthesized through a simple in‐situ confined growth route for the first time. The nano‐zeolite A was used as a 3D substrate for in‐situ growth of tri‐layered graphenes on the ...


Conductive imidazolium side chain liquid crystal polyacrylates prepared from postpolymerization functionalization

18.10.2014 | Caihong Wang, Yong Wu, Shuai Tan, Ting Liang, Xiaohui Yang, Journal of Applied Polymer Science, 2014

ABSTRACT Hydroxide and tetrafluoroborate salts of imidazolium polyacrylates have been prepared from postpolymerization functionalization of a brominated precursor containing mesogenic side chains followed by anion exchange. The ionic polyacrylates possessed molecular weights in the range ...


Hierarchically CdS Decorated 1D ZnO Nanorods‐2D Graphene Hybrids: Low Temperature Synthesis and Enhanced Photocatalytic Performance

13.10.2014 | Chuang Han, Zhang Chen, Nan Zhang, Juan Carlos Colmenares, Yi‐Jun Xu, Advanced Functional Materials, 2014

A simple, low‐temperature synthesis approach is reported for planting CdS‐sensitized 1D ZnO nanorod arrays on the 2D graphene (GR) sheet to obtain the ternary hierarchical nanostructures, during which graphene oxide (GO) as the precursor of GR acts as a flexible substrate for the formation of ...


Narrow Bandgap in β-BaZn2As2 and Its Chemical Origins

10.10.2014 | Zewen Xiao; Hidenori Hiramatsu; Shigenori Ueda; Yoshitake Toda; Fan-Yong Ran; Jiangang Guo; Hechang Lei; Satoru Mats ..., Journal of the American Chemical Society, 2014

β-BaZn2As2 is known to be a p-type semiconductor with the layered crystal structure similar to that of LaZnAsO, leading to the expectation that β-BaZn2As2 and LaZnAsO have similar bandgaps; however, the bandgap of β-BaZn2As2 (previously reported value ∼0.2 eV) is 1 order of magnitude smaller than ...


Selective Growth and Integration of Silver Nanoparticles on Silver Nanowires at Room Conditions for Transparent Nano-Network Electrode

10.10.2014 | Haifei Lu; Di Zhang; Xingang Ren; Jian Liu; Wallace C. H. Choy, ACS Nano, 2014

Recently, metal nanowires have received great research interests due to their potential as next-generation flexible transparent electrodes. While great efforts have been devoted to develop enabling nanowire electrodes, reduced contact resistance of the metal nanowires and improved electrical ...


On the scaling behavior of electric conductivity in [C4mim][NTf2]

09.10.2014 | Z. Wojnarowska; G. Jarosz; A. Grzybowski; J. Pionteck; J. Jacquemin; M. Paluch, Physical Chemistry Chemical Physics, 2014

In this work we examine, for the first time, the molar conductivity behavior of the deeply supercooled room temperature ionic liquid [C4mim][NTf2] in the temperature, pressure and volume thermodynamic space in terms of density scaling (TVγ)−1 combined with the equation of state (EOS). The ...


Li-rich anti-perovskite Li3OCl films with enhanced ionic conductivity

08.10.2014 | Xujie Lü; Gang Wu; John W. Howard; Aiping Chen; Yusheng Zhao; Luke L. Daemen; Quanxi Jia, Chemical Communication, 2014

Anti-perovskite solid electrolyte films were prepared by pulsed laser deposition, and their room-temperature ionic conductivity can be improved by more than an order of magnitude in comparison with its bulk counterpart. The cyclability of Li3OCl films in contact with lithium was evaluated using a ...


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