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2.395 Aktuelle Fachpublikationen zum Thema temperature

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Crystallization of HPHT diamond crystals in a floatage system under the influence of nitrogen and hydrogen simultaneously

28.07.2015 | Guofeng Huang; Youjin Zheng; Lizhi Peng; Zhanchang Li; Xiaopeng Jia; Hong-an Ma, CrystEngComm, 2015

Employing floatage as a driving force for diamond growth, crystallization of diamond crystals in Fe–Cr–C system co-doped with nitrogen and hydrogen elements is established at a static pressure of 6.5 GPa and a temperature range of 1335–1485 °C. Under the influence of nitrogen and hydrogen ...

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Organophosphonate Bridged Anatase Mesocrystals: Low Temperature Crystallization, Thermal Growth and Hydrogen Photo-Evolution

28.07.2015 | Abdelkrim El Kadib; Younes Brahmi; Nadia Katir; Juan Antonio Macia Agullo; Ana Primo; Mosto Bousmina; Jean-Pierre Ma ..., Dalton Transactions, 2015

The sol-gel co-condensation of organo-phosphonate to titanium alkoxide enables access to novel organic-inorganic hybrids based on phosphonate-bridged titanium dioxide. In this contribution, we bring new perspectives to the long established sol-gel mineralization of titanium alkoxide species, by ...

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Temperature dependence of the rate constant for hydrogen atom reaction with Cl2−• in water by pulse radiolysis of aqueous HCl solution

27.07.2015 | Author(s): L. Kazmierczak, J. Szala-Bilnik, M. Wolszczak, D. Swiatla-Wojcik, Radiation Physics and Chemistry, 2015

Publication date: December 2015 Source:Radiation Physics and Chemistry, Volume 117 Author(s): L. Kazmierczak, J. Szala-Bilnik, M. Wolszczak, D. Swiatla-Wojcik The temperature dependence of the rate constant for the reaction of dichloride anion radical ( Cl 2 - • ) with ...

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Probing the role of highly conserved residues in triosephosphate isomerase: analysis of site specific mutants at positions 64 and 75 in the Plasmodial enzyme

23.07.2015 | Debarati Bandyopadhyay, Mathur. R. N. Murthy, Hemalatha Balaram, Padmanabhan Balaram, FEBS Journal, 2015

Abstract Highly conserved residues in enzymes are often found to be clustered close to active sites, suggesting that functional constraints dictate the nature of amino acid residues accommodated at these sites. Using the Plasmodium falciparum Triosephosphate isomerase enzyme (PfTIM) as a ...

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Sensors, Vol. 15, Pages 17916-17925: Selective Surface Acoustic Wave-Based Organophosphorus Sensor Employing a Host-Guest Self-Assembly Monolayer of b-Cyclodextrin Derivative

23.07.2015 | Pan, Yong ; Mu, Ning ; Shao, Shengyu ; Yang, Liu ; Wang, Wen ; Xie, Xiao ; He, Shitang, Sensors, 2015

Self-assembly and molecular imprinting technologies are very attractive technologies for the development of artificial recognition systems and provide chemical recognition based on need and not happenstance. In this paper, we employed a b-cyclodextrin derivative surface acoustic wave (SAW) ...

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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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Nonheme Fe(IV) Oxo Complexes of Two New Pentadentate Ligands and Their Hydrogen-Atom and Oxygen-Atom Transfer Reactions

22.07.2015 | Mainak Mitra; Hassan Nimir; Serhiy Demeshko; Satish S. Bhat; Sergey O. Malinkin; Matti Haukka; Julio Lloret-Fillol; ..., Inorganic Chemistry, 2015

Two new pentadentate {N5} donor ligands based on the N4Py (N4Py = N,N-bis(2-pyridylmethyl)-N-bis(2-pyridyl)methylamine) framework have been synthesized, viz. [N-(1-methyl-2-benzimidazolyl)methyl-N-(2-pyridyl)methyl-N-(bis-2-pyridyl methyl)amine] (L1) and ...

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Solubility of Amorphous Clopidogrel Hydrogen Sulfate in Different Pure Solvents

22.07.2015 | Yan Liu; Zhi-Peng Zhao; Jingbin Cui; Guobin Ren, Journal of Chemical & Engineering Data, 2015

At the temperature range (273.15 to 308.15) K, the solubility of amorphous clopidogrel hydrogen sulfate (CHS) in pure 1-butanol, 2-butanol, 2-propanol, methyl acetate, ethyl acetate, acetone, and methyl tert-butyl ether (MTBE) were experimentally measured. The order of solubility of amorphous CHS ...

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Atomic-Scale Dynamics of Surface-Catalyzed Hydrogenation/Dehydrogenation: NH on Pt(111)

21.07.2015 | Zhu Liang; Hyun Jin Yang; Junepyo Oh; Jaehoon Jung; Yousoo Kim; Michael Trenary, ACS Nano, 2015

Low-temperature scanning tunneling microscopy (LT-STM) was used to move hydrogen atoms and dissociate NH molecules on a Pt(111) surface covered with an ordered array of nitrogen atoms in a (2 × 2) structure. The N-covered Pt(111) surface was prepared by ammonia oxydehydrogenation, which was ...

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