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Effects of Cu over Pd based catalysts supported on silica or niobia
(Brazilian Society of Chemical Engineering, 2000)
Controlled preparation and characterization of Pt-Rh/Al 2 O 3 bimetallic catalysts for reactions in reducing conditions
(Elsevier Science, 2016-05)
Pt-Rh bimetallic catalysts on alumina support were prepared according to three different techniques, one leading to random deposition of the two metals at the support’s surface, the two others, namely the organometallic ...
Synthesis, characterization and catalytic evaluation of cobalt and niobium oxide solids modified with alkaline earth metals
(Universidade Federal do Rio de Janeiro, 2020-09)
Cobalt and niobium oxide solids modified with alkaline earth metals (Mg, Ca, and Sr) were synthesized and characterized to compare the second element effect on the catalyst structural and chemical properties. The materials ...
Differences and similarities of supported Ge-Pt/C catalysts prepared by conventional impregnation and controlled surface reactions
(Elsevier Science, 2009-01)
Two methods of modification of monometallic platinum catalyst supported on functionalized active carbon were used for the preparation of Ge-Pt/C bimetallic catalysts: (i) conventional impregnation (CI) and (ii) controlled ...
Behavior of bimetallic PtSn/Al2O3 catalysts prepared by controlled surface reactions in the selective dehydrogenation of butane
(Elsevier Science, 2009-03)
The "one-pot" circulation reactor system was used for the modification of Pt/Al2O3 catalyst using Controlled Surface Reactions (CSRs) with the involvement of tetraethyltin. At 40 °C the tin anchoring reaction resulted in ...
Characterization and catalytic performance of PtSn catalysts supported on Al2O3 and Na-doped Al2O3 in n-butane dehydrogenation
(Springer, 2007-11)
PtSn/Al2O3 and PtSn/Al2O3-Na catalysts display important modifications of the metallic phase with respect to Pt/Al2O3 one. In this sense, TPR and XPS results show the presence of strong interactions between Pt and Sn, with ...
N-decane dehydrogenation on bimetallic PtSn and PtGe catalysts prepared by dip-coating
(Springer, 2013-10)
The catalytic performance of Pt, PtSn and PtGe supported on γ-Al 2O3 (γ-A) deposited by dipcoating of spheres of α-Al2O3 (α-A) was studied in the n-decane dehydrogenation. The effect of Sn and Ge addition to Pt on the ...
MgAl2O4 spinel prepared by novel mechanochemical synthesis used as a support of multimetallic catalysts for paraffin dehydrogenation
(Pleiades Publishing, 2013-01)
The catalytic performance in nbutane dehydrogenation of bimetallic PtSn, PtGa and PtIn, and tri metallic PtSnIn and PtSnGa catalysts (with low metal contents) supported on a MgAl2O4 prepared by a novel mechanochemical ...
n-Decane dehydrogenation on Pt, PtSn and PtGe supported on spinels prepared by different methods of synthesis
(Elsevier, 2013-07)
The catalytic performance of Pt, PtSn and PtGe supported on ZnAl2O4 obtained by mechanochemical synthesis (MS) or coprecipitation (COPR) is studied in the production of 1-decene from the n-decane dehydrogenation. The effect ...
Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening
(Elsevier Science, 2017-07)
Ring opening of naphthenic rings on Pt-Ir catalysts supported on Nb2O5 was studied in this work. The catalysts were prepared by impregnation. In the case ofthe bimetallic catalyst,the total metallic load was kept constant ...