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2.305 Aktuelle Fachpublikationen zum Thema temperature

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The chemical behavior of terminally tert-butylated polyolefins

24.07.2015 | Dagmar Klein, Henning Hopf, Peter G. Jones, Ina Dix and Ralf Hänel, Beilstein Journal of Organic Chemistry, 2015

Abstract The chemical behavior of various oligoenes 2 has been studied. The catalytic hydrogenation of diene 3 yielded monoene 4. Triene 7 was hydrogenated to diene 8, monoene 9 and saturated hydrocarbon 10. Bromine addition to 3 and 7 yielded the dibromides 17 and 18, respectively, i.e., the ...

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Energies, Vol. 8, Pages 7522-7541: Pyrolysis of Municipal Green Waste: A Modelling, Simulation and Experimental Analysis

23.07.2015 | Kabir, Mohammed J.; Chowdhury, Ashfaque Ahmed; Rasul, Mohammad G., Energies, 2015

Pyrolysis is the thermo-chemical conversion of carbonaceous feedstock in the absence of oxygen to produce bio-fuel (bio-oil, bio-char and syn-gas). Bio-fuel production from municipal green waste (MGW) through the pyrolysis process has attracted considerable attention recently in the renewable ...

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Direct Evidence for Solid-like Hydrogen in a Nanoporous Carbon Hydrogen Storage Material at Supercritical Temperatures

23.07.2015 | Valeska P. Ting; Anibal J. Ramirez-Cuesta; Nuno Bimbo; Jessica E. Sharpe; Antonio Noguera-Diaz; Volker Presser; Svem ..., ACS Nano, 2015

Here we report direct physical evidence that confinement of molecular hydrogen (H2) in an optimized nanoporous carbon results in accumulation of hydrogen with characteristics commensurate with solid H2 at temperatures up to 67 K above the liquid–vapor critical temperature of bulk H2. This extreme ...

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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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Influence of the Solvent on the “Casting” Methodology for MWCNT‐Modified Glassy Carbon and Platinum Electrodes

21.07.2015 | Ana Carolina Ângelo Dorim, Herbert Aleixo, Edilton de Souza Barcellos, Leonardo Luiz Okumura, Electroanalysis, 2015

Abstract The choice of electrode material and surface preparation method are usually dictated by the suitability of the electrode to observe an electrochemical parameter, such as heterogeneous electron transfer rate, surface coverage, or redox potential. Thus, the glassy carbon (GC) and ...

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Synthesis and characterization of silicon carbide nanowires from lignin-phenolic resin and silicon powder with an in-situ formed molten salt as catalyst

19.07.2015 | Author(s): Fu-cheng Wang, Lei Zhao, Wei Fang, Xuan He, Feng Liang, Hui Chen, Huan Chen, Xing Du, New Carbon Materials, 2015

Publication date: June 2015 Source:New Carbon Materials, Volume 30, Issue 3 Author(s): Fu-cheng Wang, Lei Zhao, Wei Fang, Xuan He, Feng Liang, Hui Chen, Huan Chen, Xing Du Silicon carbide (SiC) nanowires were synthesized using lignin-phenolic resin (LPR) and silicon powder ...

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Effects of Particle Shrinkage and Devolatilization Models on High-Temperature Biomass Pyrolysis and Gasification

17.07.2015 | Xiaoke Ku; Tian Li; Terese Løvås, Energy & Fuels, 2015

The effects of two different particle shrinkage and devolatilization models on biomass pyrolysis and gasification behavior in a high-temperature (1400 °C) entrained-flow reactor have been studied employing a three-dimensional Eulerian–Lagrangian computational fluid dynamic model in the framework ...

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Sensors: Highly Sensitive and Multimodal All‐Carbon Skin Sensors Capable of Simultaneously Detecting Tactile and Biological Stimuli (Adv. Mater. 28/2015)

16.07.2015 | So Young Kim, Sangsik Park, Han Wool Park, Do Hyung Park, Youngjin Jeong, Do Hwan Kim, Advanced Materials, 2015

A highly sensitive, wearable, and multimodal skin sensor is described by Y. Jeong, D. H. Kim, and co‐workers on page 4178, using hierarchically engineered elastic carbon nanotube microyarns. Piezocapacitive all‐carbon skin sensors simultaneously detect subtle heterogeneous external stimuli, ...

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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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Microkinetic model for the pyrolysis of methyl esters: From model compound to industrial biodiesel

15.07.2015 | Ruben De Bruycker, Steven Pyl, Marie‐Françoise Reyniers, Kevin M. Van Geem, Guy B. Marin, AIChE Journal, 2015

Abstract A tool for the generation of decomposition schemes of large molecules has been developed. These decomposition schemes contain radicals which can be eliminated from the model equations if both the μ‐hypothesis and the pseudo‐steady‐state approximation are valid. The reaction rate ...

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