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4.065 Aktuelle Fachpublikationen zum Thema temperature

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Nanostructure, dynamics, and mechanical properties of nanocomposites based on polyurethane‐poly (2‐hydroxyethyl methacrylate) semi‐interpenetrating polymer network with ultra‐low MWCNT contents

29.01.2016 | Lyudmyla Karabanova, Vladimir Bershtein, Yuriy Gomza, Demid Kirilenko, Stanislav Nesin, Pavel Yakushev, Polymer Composites, 2016

Nanocomposites based on polyurethane‐poly(2‐hydroxyethyl methacrylate) semi‐interpenetrating polymer network (PU‐PHEMA semi‐IPN) doped with 0.01, 0.05, 0.1, or 0.25 wt% of non‐functionalized multi‐walled carbon nanotubes (MWCNTs) were synthesized. Their nanostructure was studied by small‐angle ...

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[Report] Activation of Cu(111) surface by decomposition into nanoclusters driven by CO adsorption

29.01.2016 | Baran Eren; Danylo Zherebetskyy; Laerte L. Patera; Cheng Hao Wu; Hendrik Bluhm; Cristina Africh; Lin-Wang Wang; Gabo ..., Science , 2016

The (111) surface of copper (Cu), its most compact and lowest energy surface, became unstable when exposed to carbon monoxide (CO) gas. Scanning tunneling microscopy revealed that at room temperature in the pressure range 0.1 to 100 Torr, the surface decomposed into clusters decorated by CO ...

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Formation, Migration, and Reactivity of Au–CO Complexes on Gold Surfaces

28.01.2016 | Jun Wang; Monica McEntee; Wenjie Tang; Matthew Neurock; Arthur P. Baddorf; Petro Maksymovych; John T. Yates, Jr., Journal of the American Chemical Society, 2016

We report experimental as well as theoretical evidence that suggests Au–CO complex formation upon the exposure of CO to active sites (step edges and threading dislocations) on a Au(111) surface. Room-temperature scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy, transmission ...

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Toward Biodegradable Mg–Air Bioelectric Batteries Composed of Silk Fibroin–Polypyrrole Film

27.01.2016 | Xiaoteng Jia, Caiyun Wang, Chen Zhao, Yu Ge, Gordon G. Wallace, Advanced Functional Materials, 2016

Biodegradable active implantable devices can be used to diagnose and/or treat disease and eventually disappear without surgical removal. If an “external” energy source is required for effective operation then a biocompatible and biodegradable battery would be ideal. In this study, a partially ...

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Temperature dependence of GaN MOS capacitor characteristics

27.01.2016 | Zhibo Guo, Ke Tang, T. Paul Chow, physica status solidi (c), 2016

Abstract GaN MOS capacitors on both as‐grown and dry/wet‐etched GaN surfaces are characterized by C‐V and G‐ω measurements at elevated temperatures. The nature of GaN/SiO2 interface traps are determined in detail by extracting interface trap density, surface potential fluctuation, trap time ...

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Transport Properties of a MoS2/WSe2 Heterojunction Transistor and Its Potential for Application

27.01.2016 | Amirhasan Nourbakhsh; Ahmad Zubair; Mildred S. Dresselhaus; Tomás Palacios, Nano Letters, 2016

This paper studies band-to-band tunneling in the transverse and lateral directions of van der Waals MoS2/WSe2 heterojunctions. We observe room-temperature negative differential resistance (NDR) in a heterojunction diode comprised of few-layer WSe2 stacked on multilayer MoS2. The presence of NDR ...

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Alder‐ene polymers derived from allyl aralkyl phenolic resin and bismaleimides: carbon fiber composites properties

26.01.2016 | M. Satheesh Chandran, K. Sanil, K. Sunitha, Dona Mathew, V. Lakshmana Rao, C. P. Reghunadhan Nair, Polymers for Advanced Technologies, 2016

The influence of structural variations in bismaleimides (BMIs) on Alder‐ene polymerization of O‐allyl aralkyl phenolic resin [O‐allyl Xylok (OAX)] was examined. Toward this, three BMI functional monomers, viz. 2,2′‐bis 4‐[(4′‐maleimido phenoxy) phenyl] propane (BMIP), 4,4′‐Bismaleimido diphenyl ...

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Temperature-controlled spin filter and spin valve based on Fe-doped monolayer MoS2

26.01.2016 | Fei Zou; Lin Zhu; Guoying Gao; Menghao Wu; KaiLun Yao, Physical Chemistry Chemical Physics, 2016

The thermal transport properties of iron-doped molybdenum disulfide system are explored theoretically by using the density-functional-theory calculations combined with the Keldysh nonequilibrium Green's function approach. The results indicate that there are perfect spin filtering effect and spin ...

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Vapor–Liquid Equilibria, Excess Enthalpy, and Density of Aqueous γ-Valerolactone Solutions.

26.01.2016 | Anna Zaitseva; Juha-Pekka Pokki; Huy Quang Le; Ville Alopaeus; Herbert Sixta, Journal of Chemical & Engineering Data, 2016

Thermodynamic measurements were made for the binary mixture of water + γ-valerolactone (GVL) and for pure GVL to facilitate the development of the technology of lignin removal from lignocellulosic biomass (Fang, W.; Sixta, H. Advanced Biorefinery based on the Fractionation of Biomass in γ - ...

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Complex Stoichiometry-Dependent Reordering of 3,4,9,10-Perylenetetracarboxylic Dianhydride on Ag(111) upon K Intercalation

26.01.2016 | Christian Zwick; Anu Baby; Marco Gruenewald; Elisabeth Verwüster; Oliver T. Hofmann; Roman Forker; Guido Fratesi; Gi ..., ACS Nano, 2016

Alkali metal atoms are frequently used for simple yet efficient n-type doping of organic semiconductors and as an ingredient of the recently discovered polycyclic aromatic hydrocarbon superconductors. However, the incorporation of dopants from the gas phase into molecular crystal structures needs ...

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