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	Provedor de dados Anais da ABC (AABC) (2) eCrystals (1) Autor Schmal,Martin (2) Butler, Ian R. (1) Dieguez,Lídia C. (1) Freund,Hans-Joachim (1) Guimarães,André L. (1) Horton, Peter N. (1) Hursthouse, Michael B. (1) Mais... Palavra-chave Palladium (3) Catalysis (2) Characterization (2) Cerium oxide (1) Cobalt (1) C~22~H~36~Cl~2~FeP~2~Pd (1) Iron (1) Model catalysts (1) Niobia (1) Organometallic (1) Precursors (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Crystal Structure Data Holding (1) Ano 2009 (1) 2004 (1) 2003 (1) País Brazil (2) United Kingdom (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última 03SRC643 eCrystals Butler, Ian R.; Horton, Peter N.; Hursthouse, Michael B.. Tipo: Crystal Structure Data Holding Palavras-chave: C~22~H~36~Cl~2~FeP~2~Pd; Organometallic; Iron; Palladium; Catalysis. Ano: 2003 URL: http://ecrystals.chem.soton.ac.uk/915/ The effect of precursors salts on surface state of Pd/Al2O3 and Pd/CeO2/Al2O3 catalysts Anais da ABC (AABC) Guimarães,André L.; Dieguez,Lídia C.; Schmal,Martin. The influence of the precursors on the promoting effect of ceria on Pd/Al2O3 catalyst, when ceria is coated over alumina was studied. The reaction of propane oxidation proceeded under different feed conditions and the surface active sites were characterized by X-ray photoelectron spectroscopy (XPS) and in situ diffuse reflectance spectroscopy (DRS). XPS and DRS results show that PdO/Pd0 interface are the active sites independent of the precursor, while the catalysts containing CeO2 showed formation of palladium species in the highest oxidation state, probably PdO2 (338 eV) after the oxidation of propane. Besides, the O/Al and O/Ce ratios evidenced the increase of oxygen storage in the presence of CeO2. In addition, the precursor acetylacetonate favors the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Palladium; Cerium oxide; Precursors; Characterization. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000400014 Towards an atomic level understanding of niobia based catalysts and catalysis by combining the science of catalysis with surface science Anais da ABC (AABC) Schmal,Martin; Freund,Hans-Joachim. The science of catalysis and surface science have developed, independently, key information for understanding catalytic processes. One might argue: is there anything fundamental to be discovered through the interplay between catalysis and surface science? Real catalysts of monometallic and bimetallic Co/Nb2O5 and Pd-Co/Nb2O5 catalysts showed interesting selectivity results on the Fischer-Tropsch synthesis (Noronha et al. 1996, Rosenir et al. 1993). The presence of a noble metal increased the C+5 selectivity and decreased the methane formation depending of the reduction temperature. Model catalyst of Co-Pd supported on niobia and alumina were prepared and characterized at the atomic level, thus forming the basis for a comparison with "real" support... Tipo: Info:eu-repo/semantics/article Palavras-chave: Catalysis; Model catalysts; Cobalt; Palladium; Characterization; Niobia. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200016 Registros recuperados: 3 Primeira ... 1 ... Última

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