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1.971 Aktuelle Fachpublikationen zum Thema temperature

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The role of Cu species in electrospun CuO–CeO2 nanofibers for total benzene oxidation

25.11.2014 | Yongjin Luo; Kuncan Wang; Yuxian Xu; Xiuyun Wang; Qingrong Qian; Qinghua Chen, New Journal of Chemistry, 2014

CuO–CeO2 nanofibers with relatively high surface area (EL-CuCe) have been successfully prepared by the electrospinning method and investigated for total benzene oxidation. The improved low-temperature performance of EL-CuCe compared to ST-CuCe (prepared by the surfactant-templated method) is ...

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TiO2/clay as a heterogeneous catalyst in photocatalytic/photochemical oxidation of anionic reactive blue 19

23.11.2014 | Author(s): Haithem Bel Hadjltaief , Maria Elena Galvez , Mourad Ben Zina , Patrick Da Costa, Arabian Journal of Chemistry, 2014

Publication date: Available online 10 November 2014 Source:Arabian Journal of Chemistry Author(s): Haithem Bel Hadjltaief , Maria Elena Galvez , Mourad Ben Zina , Patrick Da Costa A TiO2-coated Tunisian clay (TiO2–clay) was synthesized by a typical impregnation method. The ...

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Low Temperature Activation of CO Removal by O3-Assisted Catalysis

21.11.2014 | Sungkwon Jo; Kwan-Tae Kim; Dae Hoon Lee; Young-Hoon Song; Jae-Ok Lee; Taewoo Lee; Hyun-Sik Han, Environmental Science & Technology, 2014

Catalytic CO oxidation was activated at low temperature by injecting O3 as an additive. It was empirically confirmed that CO removal rate was dramatically enhanced by supplying a small amount of O3, and the reaction temperature was almost half that required for CO oxidation when using a catalyst ...

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Iron Nitrate/TEMPO: a Superior Homogeneous Catalyst for Oxidation of Primary Alcohols to Nitriles in Air

21.11.2014 | Shashikant U. Dighe, Deepan Chowdhury, Sanjay Batra, Advanced Synthesis & Catalysis, 2014

Abstract A highly practical, one‐step, facile synthesis of aromatic, heteroaromatic, allylic and aliphatic nitriles from primary alcohols catalyzed by ferric nitrate [Fe(NO3)3⋅9H2O] in the presence of TEMPO, aqueous ammonia and air at room temperature is described.

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High Temperature X-ray Diffraction Study of the Oxidation Products and Kinetics of Uranium–Plutonium Mixed Oxides

20.11.2014 | Michal Strach; Renaud C. Belin; Jean-Christophe Richaud; Jacques Rogez, Inorganic Chemistry, 2014

The oxidation products and kinetics of two sets of mixed uranium–plutonium dioxides containing 14%, 24%, 35%, 46%, 54%, and 62% plutonium treated in air were studied by means of in situ X-ray diffraction (XRD) from 300 to 1773 K every 100 K. The first set consisted of samples annealed 2 weeks ...

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Role of Cu species in electrospun CuO-CeO2 nanofibers for total benzene oxidation

18.11.2014 | Yongjin Luo; Kuncan Wang; Yuxian Xu; Xiuyun Wang; Qingrong Qian; Qinghua Chen, New Journal of Chemistry, 2014

CuO-CeO2 nanofibers of relatively high surface (EL-CuCe) has been successfully prepared by electrospinning method and investigated for total benzene oxidation. The improved low-temperature performance of EL-CuCe compared to ST-CuCe (prepared by surfactant-templated method) is attributed to a ...

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Preparation of Large Granular Cu-Based Oxygen Carriers by Mechanical Mixing for Packed Bed Chemical-Looping Combustion

17.11.2014 | Zhiqi Wang; Yongqiang Liu; Jingli Wu; Tao He; Jianqing Li; Jinghu Wu, Energy & Fuels, 2014

Large granular oxygen carriers are proposed in packed-bed chemical looping combustion (CLC) reactors to facilitate the separation of fuel residues and oxygen carriers for solid fuels (especially biomass and combustible solid wastes) and avoid very large pressure drops for gas fuels, which require ...

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Shock Tube Study of Dimethylamine Oxidation

12.11.2014 | Sijie Li, David F. Davidson, Ronald K. Hanson, International Journal of Chemical Kinetics, 2014

ABSTRACT Dimethylamine (DMA) ignition delay times and OH time histories during the oxidation process were investigated behind reflected shock waves. The ignition delay time measurements cover the temperature range of 1181–1498 K, with pressures near 0.9, 1.5, and 2.8 atm, and equivalence ...

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Effect of Rooibos (Aspalathus Linearis) on Growth Control of Clostridium Perfringens and Lipid Oxidation of Ready‐to‐Eat Jokbal (Pig's Trotters)

12.11.2014 | Hee Jin Park, Keun‐Cheol Park, Ki Sun Yoon, Journal of Food Science, 2014

Abstract This study investigated the antimicrobial effects of rooibos (tea extract), potassium lactate (PL) and sodium diacetate (SDA) mixture alone or in combinations on the growth of Clostridium perfringens vegetative cell and spore in ready‐to‐eat (RTE) Jokbal (pig's trotters). Addition of ...

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Oxidation of Alkylbenzenes with Cerium Complexes Containing a Tripodal Oxygen Ligand

12.11.2014 | Xiao‐Yi Yi, Guo‐Cang Wang, Ho‐Fai Ip, Wai‐Yeung Wong, Lizhuang Chen, Herman H. ‐Y. Sung, Ian D. Williams, Wa‐Hung Leung, European Journal of Inorganic Chemistry, 2014

Abstract The treatment of [Ce(LOEt)2(NO3)2] (LOEt– = [Co(η5‐C5H5){P(O)(OEt)2}3]–) with KMnO4 in water afforded a diamagnetic purple solid 1, which is tentatively formulated as a CeIV permanganate complex, “[Ce(LOEt)2(MnO4)2]”. The ZrIV analogue, [Zr(LOEt)2(MnO4)2] (2), has been prepared ...

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