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2.525 Aktuelle Fachpublikationen zum Thema temperature

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All for less carbon

01.02.2016 | Nature Materials, 2016

Nature Materials 15, 113 (2016). doi:10.1038/nmat4562 The development and implementation of low-carbon and carbon-free technologies will be essential to limit the global temperature rise well below 2 °C from pre-industrial levels.

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A decade Of weekly dissolved organic carbon values in the coastal upwelling of the Nw Spain (Atlantic Galician Rías)

31.01.2016 | Author(s): M.D. Doval, A. López, M. Madriñán, Marine Chemistry, 2016

Publication date: Available online 30 January 2016 Source:Marine Chemistry Author(s): M.D. Doval, A. López, M. Madriñán Dissolved organic carbon (DOC) was measured weekly in five coastal upwelling Galician rías (Ría de Vigo, Ría de Pontevedra, Ría de Arousa, Ría de Muros and Ría de ...

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Aligned Single-Walled Carbon Nanotube Arrays from Rhodium Catalysts with Unexpected Diameter Uniformity Independent of the Catalyst Size and Growth Temperature

29.01.2016 | Pan Li; Xiao Zhang; Jie Liu, Chemistry of Materials, 2016

Diameter control in the synthesis of single-walled carbon nanotube (SWNT) arrays is vital to the control of their properties and their integration into practical devices. Controlling the size of catalyst nanoparticles (NPs) and following a tangential nucleation mode has been shown to be an ...

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Synthesis of Nanocrystalline TiOF2 Embedded in a Carbonaceous Matrix from TiF4 and d-Fructose

29.01.2016 | Claudio Evangelisti; Mohammad Hayatifar; Fabio Marchetti; Marcello Marelli; Guido Pampaloni; Fabio Piccinelli, Inorganic Chemistry, 2016

Nanostructured titanium oxide difluoride embedded in a matrix of amorphous carbon was synthesized by pyrolysis of d-fructose in the presence of titanium tetrafluoride (optimal Ti/fructose molar ratio = 5.5), both in the solid state at ca. 150 °C and in suspension of 1,2-dichloroethane at reflux ...

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Hyperpolarized 129Xe Nuclear Magnetic Resonance Studies of Si Nanocomposite Electrode Materials

29.01.2016 | Yougang Mao; Myeonghun Song; Russell Hopson; Naba K. Karan; Pradeep R. Guduru; Li-Qiong Wang, Energy & Fuels, 2016

Porosity and interconnectivity of pores play an important role in the performance of composite electrodes in Li ion batteries. Hyperpolarized (HP) 129Xe nuclear magnetic resonance (NMR) is powerful for probing porosity and interconnectivity of nanopores. This study represents the first time that ...

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Solution Layer Deposition: A Technique for the Growth of Ultra‐Pure Manganese Oxides on Silica at Room Temperature

28.01.2016 | Jérémy Cure, Kilian Piettre, Yannick Coppel, Eric Beche, Jérôme Esvan, Vincent Collière, Bruno Chaudret, Pierre Fau, Angewandte Chemie International Edition, 2016

Abstract With the ever increasing miniaturization in microelectronic devices, new deposition techniques are required to form high‐purity metal oxide layers. Herein, we report a liquid route to specifically produce thin and conformal amorphous manganese oxide layers on silicon substrate, which ...

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Superparamagnetic Reduced Graphene Oxide with Large Magnetoresistance: A Surface Modulation Strategy

28.01.2016 | Jing Peng, Yuqiao Guo, Haifeng Lv, Xinyu Dou, Qi Chen, Jiyin Zhao, Changzheng Wu, Xiaojiao Zhu, Yue Lin, Wei Lu, Xia ..., Angewandte Chemie International Edition, 2016

Abstract The graphene system is actively pursued in spintronics for its nontrivial sp electron magnetism and its potential for the flexible surface chemical tuning of magnetoelectronic functionality. The magnetoresistance (MR) of graphene can be effectively tuned under high magnetic fields at ...

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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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Performance Enhancement and Mechanistic Studies of Room-Temperature Sodium–Sulfur Batteries with a Carbon-Coated Functional Nafion Separator and a Na2S/Activated Carbon Nanofiber Cathode

26.01.2016 | Xingwen Yu; Arumugam Manthiram, Chemistry of Materials, 2016

Operation of sodium–sulfur batteries at room temperature has been proposed and studied for about a decade, but polysulfide-shuttle through the traditional battery separator and low-utilization of the sulfur cathode commonly have been the major challenges. Also, because of the highly active nature ...

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One-step synthesis of Fe3O4/carboxylate-rich carbon composite and its application for Cu (Ⅱ) removal

26.01.2016 | Lingling Qu; Jianzhong Jia; Hefei Shi; Zhijun Luo, New Journal of Chemistry, 2016

Fe3O4/carboxylate-rich carbon composite (Fe3O4/CRC) have been synthesized via a facile one-step low temperature carbonization method from simple precursors, the single iron source FeSO4.7H2O and sodium gluconate. Carboxylate groups of sodium gluconate can coordinate with Fe(Ⅱ) and form the ...

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