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Gotowe bibliografie tematyczne / Catalyseur de surface

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Artykuły w czasopismach

Gotowa bibliografia na temat „Catalyseur de surface”

Autor: Grafiati

Data publikacji: 19 października 2023

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Artykuły w czasopismach na temat "Catalyseur de surface"

1

Zalma, Roger, Lionel Bonneau, Jeanine Fournier, Joëlle Guignard, Françoise Borg, and Henri Pezerat. "Hydrodésazotation de l'indole sur catalyseur fer supporté sur amiante." Canadian Journal of Chemistry 65, no. 3 (1987): 523–27. http://dx.doi.org/10.1139/v87-091.

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The aim of this study is to examine hydrodenitrogenation (HDN) of indole on asbestos catalysts (chrysotile and crocidolite) under hydrogen pressure. HDN is carried out according to two competitive pathways, either via ortho-ethylaniline or via ortho-toluidine. This reaction is assisted by increase of temperature and pressure and by pre-reduction of the asbestos. Particles of Fe0on the fibre surface are formed from the original material. Their presence plays a role in the initial breaking of the C—N bond and in the hydrogenation reaction.

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Merabet, Smail, Abdelkrim Bouzaza, Mohamed Bouhelassa, and Dominique Wolbert. "Modélisation et optimisation de la photodégradation du 4-méthylphénol dans un réacteur à recirculation en présence d’UV/ZnO." Revue des sciences de l'eau 22, no. 4 (2009): 565–73. http://dx.doi.org/10.7202/038331ar.

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Résumé L’étude de la photodégradation du 4-méthylphénol a été menée sur un pilote à recirculation. Cette molécule a été prise comme composé modèle pour le traitement des effluents de l’industrie avicole. Ce travail a consisté en l’optimisation et la modélisation de l’élimination du 4-méthylphénol par photocatalyse en présence de ZnO. L’utilisation des plans d’expériences, et en particulier de la méthodologie de surface de réponse (RSM) et un plan central composite (CCD), a permis la détermination de l’influence des effets simultanés et de l’interaction des paramètres opératoires sur le rendeme

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3

Hurren, C. J., R. T. Liu, Xin Liu, and X. G. Wang. "Photo-Catalysis of Red Wine Stains Using Titanium Dioxide Sol-Gel Coatings on Wool Fabrics." Advances in Science and Technology 60 (September 2008): 111–16. http://dx.doi.org/10.4028/www.scientific.net/ast.60.111.

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This paper investigated the use of titanium dioxide sol-gel coatings to photo-catalyse red wine stains on wool fabrics. Coatings were produced by the hydrolysis and condensation of titanium butoxide (Ti(OC4H9)4) on the surface of wool fabrics after pad application. Coatings were partially converted to the anatase form of titanium dioxide by prolonged immersion in boiling water. The coating presence was confirmed using scanning electron microscopy, UVspectrophotometry and atomic force microscopy. Coated samples were measured for photo-catalytic activity by degrading red wine stains from the sur

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4

Bergel, Alain. "Recent Advances in Electron Transfer Between Biofilms and Metals." Advanced Materials Research 20-21 (July 2007): 329–34. http://dx.doi.org/10.4028/www.scientific.net/amr.20-21.329.

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Microbial biofilms produce electrochemical interactions with metal surfaces by following a wide variety of different electron exchange pathways. Reviewing the mechanisms identified in the biocorrosion of steels leads us to distinguish direct and indirect mechanisms for biofilm-catalysed cathodic reactions. Indirect mechanisms are due to the production of metal oxides or hydrogen peroxide (aerobic corrosion) or metal sulphides (anaerobic corrosion), which further react with the metal surface. Direct mechanisms involve adsorbed biocompounds, generally enzymes or their active sites, which catalys

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5

Mozaceanu, Cristina, Christopher G. P. Taylor, Jerico R. Piper, Stephen P. Argent, and Michael D. Ward. "Catalysis of an Aldol Condensation Using a Coordination Cage." Chemistry 2, no. 1 (2020): 22–32. http://dx.doi.org/10.3390/chemistry2010004.

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The aldol condensation of indane-1,3-dione (ID) to give ‘bindone’ in water is catalysed by an M8L12 cubic coordination cage (Hw). The absolute rate of reaction is slow under weakly acidic conditions (pH 3–4), but in the absence of a catalyst it is undetectable. In water, the binding constant of ID in the cavity of Hw is ca. 2.4 (±1.2) × 103 M−1, giving a ∆G for the binding of −19.3 (±1.2) kJ mol−1. The crystal structure of the complex revealed the presence of two molecules of the guest ID stacked inside the cavity, giving a packing coefficient of 74% as well as another molecule hydrogen-bonded

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6

Wong, W.-Y., S. Lim, Y.-L. Pang, C.-H. Lim, F.-L. Pua, and G. Pua. "Response surface optimisation of biodiesel synthesis using biomass derived green heterogeneous catalyst." IOP Conference Series: Materials Science and Engineering 1257, no. 1 (2022): 012010. http://dx.doi.org/10.1088/1757-899x/1257/1/012010.

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Abstract Although homogeneous alkali-catalysed transesterification is the typical process used in biodiesel production, it caused complications in downstream separation processes and an oversupply of glycerol as a by-product. The present work studied the synthesis of a novel sulfonated biomass-derived solid acid catalyst and its application in biodiesel production via interesterification of oleic acid. Solid acid catalysts were prepared by direct sulfonation via thermal treatment with concentrated sulfuric acid. The design of experiments was conducted via four-factors central composite design

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7

Papageorgiou, G., J. D. Major, and K. Durose. "Substrate geometry CdTe solar cells with catalytically-grown nano-rough surfaces." MRS Advances 1, no. 14 (2016): 985–90. http://dx.doi.org/10.1557/adv.2016.153.

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ABSTRACTSubstrate geometry CdTe solar cells have been modified with the addition of metal-catalysed nano-structures in order to influence their efficiency. Conditions for the growth of Au- and Bi-catalysed nanostructures were explored. The substrate devices themselves comprised indium tin oxide/CdS/CdTe/Mo foil and were developed using the MgCl2 alternative to the usual CdCl2 processing – this yielded open circuit voltages of up to 740 mV. It was demonstrated that the addition of Au-catalysed nanowires to 200 nm thick CdTe films on glass substrates decreased their optical transmission by 10%,

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8

Tsuji, Hideto, and Hideshi Hattori. "Oxide Surfaces that Catalyse an Acid–Base Reaction with Surface Lattice Oxygen Exchange: Evidence of Nucleophilicity of Oxide Surfaces." ChemPhysChem 5, no. 5 (2004): 733–36. http://dx.doi.org/10.1002/cphc.200400009.

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9

Chen, L., F. Qi, B. Xu, Z. Xu, J. Shen та K. Li. "The efficiency and mechanism of γ-alumina catalytic ozonation of 2-methylisoborneol in drinking water". Water Supply 6, № 3 (2006): 43–51. http://dx.doi.org/10.2166/ws.2006.726.

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The efficiency and mechanism in degradation of 2-methylisoborneol (MIB) as a taste and odour compound in drinking water were studied under the condition where γ-alumina catalysed ozonation. As a result, γ-alumina can show distinct activity in enhancing the efficiency of ozonation of MIB. Tert-butyl alcohol had a remarkable effect on the removal efficiency of catalytic ozonation of MIB. The surface charge status, surface hydroxyl group status of γ-alumina, and pH values of the solution can be linked together. When the pH value of the solution was near the pHzpc of γ-Al2O3, there was observable

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10

Wang, Dianzhan, Ye Gu, Zhaoshun Yang, and Lixiang Zhou. "Synthesis and assessment of schwertmannite/few-layer graphene composite for the degradation of sulfamethazine in heterogeneous Fenton-like reaction." Royal Society Open Science 7, no. 7 (2020): 191977. http://dx.doi.org/10.1098/rsos.191977.

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Schwertmannite (sch), an iron oxyhydrosulfate mineral, can catalyse a Fenton-like reaction to degrade organic contaminants, but the reduction of Fe(III) to Fe(II) on the surface of schwertmannite is a limiting step for the Fenton-like process. In the present study, the sch/few-layer graphene (sch–FLG) composite was synthesized to promote the catalytic activity of sch in a Fenton-like reaction. It was found that sch can be successfully carried by FLG in sch–FLG composite, mainly via the chemical bond of Fe–O–C on the surface of sch–FLG. The sch–FLG exhibited a much higher catalytic activity tha

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