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2.845 Aktuelle Fachpublikationen zum Thema temperature

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Crystal structure, thermal expansion and high-temperature electrical conductivity of A-site deficient La2−zCo1+y(MgxNb1−x)1−yO6 double perovskites

28.06.2015 | Author(s): S. Shafeie , B. Dreyer , R.H.P Awater , T. Golod , J. Grins , J.J. Biendicho , S.Ya. Istomin , G. ..., Journal of Solid State Chemistry, 2015

Publication date: September 2015 Source:Journal of Solid State Chemistry, Volume 229 Author(s): S. Shafeie , B. Dreyer , R.H.P Awater , T. Golod , J. Grins , J.J. Biendicho , S.Ya. Istomin , G. Svensson New La-deficient double perovskites with P21/n symmetry, La∼ 1.90(Co2+ 1−x Mg2+ ...

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Pure H2 production through hollow fiber hydrogen‐selective MFI zeolite membranes using steam as sweep gas

27.06.2015 | Yuting Zhang, Qi Sun, Xuehong Gu, AIChE Journal, 2015

Abstract Hollow fiber MFI zeolite membranes were modified by catalytic cracking deposition of methyldiethoxysilane (MDES) to enhance their H2/CO2 separation performance and further employed in high temperature water gas shift membrane reactor (MR). Steam was used as the sweep gas in the MR for ...

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Methylamine‐Gas Induced Defect‐Healing Behavior of CH3NH3PbI3 Thin Films for Perovskite Solar Cells

27.06.2015 | Zhongmin Zhou, Zaiwei Wang, Yuanyuan Zhou, Shuping Pang, Dong Wang, Hongxia Xu, Zhihong Liu, Nitin P. Padture, Guang ..., Angewandte Chemie International Edition, 2015

Abstract We report herein the discovery of methylamine (CH3NH2) induced defect‐healing (MIDH) of CH3NH3PbI3 perovskite thin films based on their ultrafast (seconds), reversible chemical reaction with CH3NH2 gas at room temperature. The key to this healing behavior is the formation and ...

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Computational study on the interactions of mustard gas with cucurbituril macrocycles

26.06.2015 | Natarajan Sathiyamoorthy Venkataramanan, Ambigapathy Suvitha, Hiroshi Mizuseki, Yoshiyuki Kawazoe, International Journal of Quantum Chemistry, 2015

The study on the absorption of toxic gases such as mustard gas by organic host is essential to the development of inexpensive detection and decontamination equipments. Using quantum chemical methods, we propose cucurbituril as an effective host to capture mustard gas. It was found that stable ...

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Preparation of highly active nickel catalysts supported on mesoporous nanocrystalline γ‐Al2O3 for Methane Autothermal Reforming

25.06.2015 | Soodeh Sepehri, Mehran Rezaei, Chemical Engineering & Technology, 2015

Abstract Autothermal reforming of methane (ATR) was carried out over nanocrystalline Al2O3 supported Ni catalysts with various Ni loadings. Mesoporous nanocrystalline γ‐Al2O3 powder with high specific surface area was prepared by sol‐gel method and employed as support for nickel catalysts. The ...

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Experimental determination of CO2 diffusion coefficient in aqueous solutions under pressure at room temperature via Raman spectroscopy: impact of salinity (NaCl)

25.06.2015 | Clément Belgodere, Jean Dubessy, Denis Vautrin, Marie‐Camille Caumon, Jérôme Sterpenich, Jacques Pironon, Pascal Rob ..., Journal of Raman Spectroscopy, 2015

The accurate determination of the diffusion coefficient of dissolved CO2 in aqueous solutions is a key parameter to predict the transport of the dissolved gas in the aqueous solution of porous aquifers and caprocks in the context of the mitigation of greenhouse gases emissions. A better ...

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Phase Behavior of Binary Mixtures of a Liquid Crystal and Methane

25.06.2015 | Mariette de Groen; Oriol Mesalles Molet; Thijs J. H. Vlugt; Theodoor Willem de Loos, Journal of Chemical & Engineering Data, 2015

Phase diagrams of binary systems of four different liquid crystals with different polarity and CH4 are investigated experimentally in this study. The solubility of CH4 in liquid crystals has not been studied before. The liquid crystals used were 4-ethyl-4′-propylbicyclohexyl, ...

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High‐Temperature Aging of Plasma Sprayed Quasi‐Eutectoid LaYbZr2O7‐Part I: Phase Evolution

24.06.2015 | Xiaorui Ren, Meng Zhao, Chunlei Wan, Yixin Zheng, Wei Pan, Journal of the American Ceramic Society, 2015

Phase and microstructure stability is an important issue for the durability and performance of thermal barrier coating (TBC) materials which have to work at high temperature for long time. In this work, we present a meta‐stable structure LaYbZr2O7 by air plasma spraying process, which can ...

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High Temperature Micro‐Fan for Solid Oxide Fuel Cell Applications

23.06.2015 | J. Milewski, A. Miller, E. Mozer, T. Świercz, Fuel Cells, 2015

Abstract The possibility of using a μ‐fan in tubular solid oxide fuel cells module (SOFC‐M) is shown. The μ‐fan is placed instead of the ejector and fulfills its role. The main advantages of this solution are: lower power demanded by the fuel compressor (blower), more stable working ...

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Processes forming Gas, Tar, and Coke in Cellulose Gasification from Gas‐Phase Reactions of Levoglucosan as Intermediate

23.06.2015 | Asuka Fukutome, Haruo Kawamoto, Shiro Saka, ChemSusChem, 2015

Abstract The gas‐phase pyrolysis of levoglucosan (LG), the major intermediate species during cellulose gasification, was studied experimentally over the temperature range of 400–900 °C. Gaseous LG did not produce any dehydration products, which include coke, furans, and aromatic substances, ...

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