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Behavior of PtPb/MgAl2O4 catalysts with different Pb contents and trimetallic PtPbIn catalysts in n-butane dehydrogenation
(Elsevier, 2013-08)
The behavior of PtPb/MgAl2O4 catalysts in butenes production through the n-butane dehydrogenation has shown that at low contents, the Pb acts as promoter, improving the conversion and selectivity, whereas at higher contents ...
SYNTHESIS OF Pb2Fe2O5 BY THERMAL DECOMPOSITION OF Pb2[Fe(CN)6].4H2O
(Sociedad Chilena de Química, 2010)
Dating minerals by ID-TIMS geochronology at times of in situ analysis: selected case studies from the CPGeo-IGc-USP laboratory
(Academia Brasileira de Ciências, 2009)
Since 1964, the Center for Geochronological Research - CPGeo, one of the interdepartmental centers of the Instituto de Geociências (IG) of São Paulo University, has developed studies related to several geological processes ...
First principles calculations for vacancies and antisites in PbSe and PbTe: bulk and nanowire.
(Sociedade Brasileira de FísicaÁguas de Lindóia, 2013-05-13)
The energetic stability and the electronic properties of vacancies (VX) and antisites (XY) in PbSe and PbTe are investigated. PbSe and PbTe are narrow band gap semiconductors and have the potential to be used in infrared ...
Estudo de impureza de európio em PbSe e PbTe. Uma investigação de primeiros princípios
(Universidade Federal de Santa MariaBRFísicaUFSMPrograma de Pós-Graduação em Física, 2014-01-30)
In this work properties were studied the structural, electronic and magnetic semiconductors
PbSe and PbTe doped with europium (Eu) in the crystalline phase. The
investigation is performed within the density functional ...
The Relationship between Blood and Serum Lead Levels in Peripartum Women and their Respective Umbilical Cords
(WILEY-BLACKWELL PUBLISHING, INC, 2010)
Foetal exposure to lead (Pb) during pregnancy is a major problem. However, no previous study has examined whether Pb concentrations in blood (Pb-B) and in serum (Pb-S) from pregnant women correlate with Pb-B and Pb-S in ...
Mecanismos reacionais e os processos de carga e descarga no caso de eletrodos planos de Pb em ácido sulfúrico e formação de eletrodos planos de PbO2 partindo de eletrodos de Pb
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-graduação em Química, 2007-10-04)
Two systems that form the basis of the lead-acid batteries were studied. The first system was the lead/sulfuric acid (Pb/H2SO4) interface. This interface is equivalent to negative electrode of lead acid batteries. The ...