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1.874 Aktuelle Fachpublikationen zum Thema temperature

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Oxygen interstitials and vacancies in LaSrGa3O7-based melilites

26.07.2015 | Author(s): Jungu Xu, Xiaohui Li, Fengqi Lu, Hui Fu, Craig M. Brown, Xiaojun Kuang, Journal of Solid State Chemistry, 2015

Publication date: October 2015 Source:Journal of Solid State Chemistry, Volume 230 Author(s): Jungu Xu, Xiaohui Li, Fengqi Lu, Hui Fu, Craig M. Brown, Xiaojun Kuang The Sr-rich composition of the layered tetrahedral meililite, La0.8Sr1.2Ga3O6.9, was synthesized and a structural ...

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Effects of glass fiber on the properties of polyoxymethylene/thermoplastic polyurethane/multiwalled carbon nanotube composites

22.07.2015 | Bo‐Yuan Zhang, Ling Xu, Zhao‐Xia Guo, Jian Yu, Satoshi Nagai, Polymer Composites, 2015

The effects of epoxy‐functionalized glass fiber (GF) on the electrical conductivity, crystallization behavior, thermal stability, and dynamic mechanical properties of polyoxymethylene (POM)/thermoplastic polyurethane (TPU)/multiwalled carbon nanotube (MWCNT) composites are investigated. The ...

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Transport, magnetic and vibrational properties of chemically exfoliated few‐layer graphene

21.07.2015 | Bence G. Márkus, Ferenc Simon, Julio C. Chacón‐Torres, Stephanie Reich, Péter Szirmai, Bálint Náfrádi, László Forró, ..., physica status solidi (b), 2015

Abstract Abstractauthoren We study the vibrational, magnetic and transport properties of Few Layer Graphene (FLG) using Raman and electron spin resonance spectroscopy and microwave conductivity measurements. FLG samples were produced using wet chemical exfoliation with different ...

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Size-Controlled AgI/Ag Heteronanowires in Highly Ordered Alumina Membranes: Superionic Phase Stabilization and Conductivity

21.07.2015 | Hemin Zhang; Takashi Tsuchiya; Changhao Liang; Kazuya Terabe, Nano Letters, 2015

Nanoscaled ionic conductors are crucial for future nanodevices. A well-known ionic conductor, AgI, exhibited conductivity greater than 1 Ω–1 cm–1 in α-phase and transformed into poorly conducting β-/γ-phase below 147 °C, thereby limiting applications. Here, we report that transition temperatures ...

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Hindered Glymes for Graphite‐Compatible Electrolytes

16.07.2015 | Devaraj Shanmukaraj, Sylvie Grugeon, Stephane Laruelle, Michel Armand, ChemSusChem, 2015

Abstract Organic carbonate mixtures are used almost exclusively as lithium battery electrolyte solvents. The linear compounds (dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate) act mainly as thinner for the more viscous and high‐melting ethylene carbonate but are the least stable ...

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Fast Li Ion Dynamics in the Solid Electrolyte Li7P3S11 as Probed by 6,7Li NMR Spin‐Lattice Relaxation

16.07.2015 | Dominik Wohlmuth, Viktor Epp, Martin Wilkening, ChemPhysChem, 2015

Abstract The development of safe and long‐lasting all‐solid‐state batteries with high energy density requires a thorough characterization of ion dynamics in solid electrolytes. Commonly, conductivity spectroscopy is used to study ion transport; much less frequently, however, atomic‐scale ...

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A New Salt‐Baked Approach for Confining Selenium in Metal Complex‐Derived Porous Carbon with Superior Lithium Storage Properties

16.07.2015 | Xiaona Li, Jianwen Liang, Zhiguo Hou, Wanqun Zhang, Yan Wang, Yongchun Zhu, Yitai Qian, Advanced Functional Materials, 2015

For lithium‐selenium batteries, commercial applications are hindered by the inferior electrical conductivity of selenium and the low utilization ratio of the active selenium. Here, we report a new baked‐in‐salt approach to enable Se to better infiltrate into metal‐complex‐derived porous carbon ...

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3D Nanocomposites of Covalently Interconnected Multiwalled Carbon Nanotubes with SiC with Enhanced Thermal and Electrical Properties

14.07.2015 | Lakshmy Pulickal Rajukumar, Manuel Belmonte, John Edward Slimak, Ana Laura Elías, Eduardo Cruz‐Silva, Nestor Perea‐L ..., Advanced Functional Materials, 2015

Synthesizing 3D carbon nanotube (CNT) networks with multifunctional characteristics has stimulated the interest from the scientific community since the 1990s. Here, the fabrication of a novel composite material consisting of 3D covalently interconnected multiwalled CNT with silicon carbide (SiC) ...

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Can the Scaling Behavior of Electric Conductivity be Used to Probe the Self-Organizational Changes in Solution with the Respect to the Ionic Liquid Structure? The case of [C8MIM][NTf2]

14.07.2015 | Marian Paluch; Zaneta Wojnarowska; Peter Goodrich; Johan Jacquemin; Jürgen Pionteck; Stella Hensel-Bielowka, Soft Matter, 2015

Electrical conductivity of the supercooled ionic liquid [C8MIM][NTf2], determined as the function of the temperature and pressure, highlights strong differences in its ionic transport behavior between low and high temperature regions. To date, the crossover effect which is very well-known for low ...

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In Situ Formation of Conductive Metal Sulfide Domain in Metal Oxide Matrix: An Efficient Way to Improve the Electrochemical Activity of Semiconducting Metal Oxide

06.07.2015 | In Young Kim, Jiyoon Seo, Seung Mi Oh, Sharad B. Patil, Seong‐Ju Hwang, Advanced Functional Materials, 2015

A new effective way to improve the electrochemical activity of semiconducting metal oxide is developed by the in situ formation of conductive metal sulfide domain in the metal oxide matrix. The Li0.96Ti1.08S2−Li4Ti5O12 nanocomposites with tunable compositions and electrical properties are ...

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