TY - JOUR
T1 - Metallosilicate mesoporous catalysts prepared by incorporation of transition metals in the MCM-41 molecular sieves and their catalytic activity in selective oxidation of aromatics (styrene and benzene)
AU - Pârvulescu, V.
AU - Su, B. L.
PY - 2000/1/1
Y1 - 2000/1/1
N2 - MCM-41 analogue metallosilicates containing the redox active metals V, Co, Cr and Ni or bimetals VCo and CrNi have been synthesized from aqueous gel by hydrothermal treatment. The mono- and bimetallic molecular sieves were characterized by various techniques, such as XRD, N2 adsorption-desorption, SEM, TEM and FTIR spectroscopy. The catalytic activity in the selective oxidation of styrene and benzene with H2O2 has been evaluated. The catalytic properties and the characteristics of the structure were correlated with the synthesis conditions, the nature and concentration of the metal, the association of two metals and their molar ratio in the bimetallic incorporated silicates and the oxidation state of the metal cations in the precursors.
AB - MCM-41 analogue metallosilicates containing the redox active metals V, Co, Cr and Ni or bimetals VCo and CrNi have been synthesized from aqueous gel by hydrothermal treatment. The mono- and bimetallic molecular sieves were characterized by various techniques, such as XRD, N2 adsorption-desorption, SEM, TEM and FTIR spectroscopy. The catalytic activity in the selective oxidation of styrene and benzene with H2O2 has been evaluated. The catalytic properties and the characteristics of the structure were correlated with the synthesis conditions, the nature and concentration of the metal, the association of two metals and their molar ratio in the bimetallic incorporated silicates and the oxidation state of the metal cations in the precursors.
UR - http://www.scopus.com/inward/record.url?scp=0036922963&partnerID=8YFLogxK
U2 - 10.1016/s0167-2991(00)80699-0
DO - 10.1016/s0167-2991(00)80699-0
M3 - Article
AN - SCOPUS:0036922963
SN - 0167-2991
VL - 143
SP - 575
EP - 584
JO - Studies in surface science and catalysis
JF - Studies in surface science and catalysis
ER -