TY - JOUR
T1 - The effects of nature and pretreatment of surface alumina support on the catalytic nickelsilicate membrane formation
AU - Constantin, C.
AU - Pârvulescu, V.
AU - Bujor, A.
AU - Popescu, G.
AU - Su, B. L.
PY - 2000/1/1
Y1 - 2000/1/1
N2 - Catalytic nickelsilicate membranes were synthesized by in-situ techniques on pretreated α- and γ- alumina supports. The resulting films and bulk materials have been characterized by XRD, N2 adsorption-desorption, SEM, TEM and FTIR spectroscopy. Their permeation performances of gases and liquids and catalytic activity in the selective oxidation of styrene with H2O2 have been evaluated. The formation, morphology, permeation and catalytic properties of the membranes have been correlated with nature of alumina supports, their surface pretreatment and conditions of the hydrothermal synthesis. The results show a strong effect of γ-alumina surface on the morphology and properties of the membranes.
AB - Catalytic nickelsilicate membranes were synthesized by in-situ techniques on pretreated α- and γ- alumina supports. The resulting films and bulk materials have been characterized by XRD, N2 adsorption-desorption, SEM, TEM and FTIR spectroscopy. Their permeation performances of gases and liquids and catalytic activity in the selective oxidation of styrene with H2O2 have been evaluated. The formation, morphology, permeation and catalytic properties of the membranes have been correlated with nature of alumina supports, their surface pretreatment and conditions of the hydrothermal synthesis. The results show a strong effect of γ-alumina surface on the morphology and properties of the membranes.
UR - http://www.scopus.com/inward/record.url?scp=0036931713&partnerID=8YFLogxK
U2 - 10.1016/s0167-2991(00)80643-6
DO - 10.1016/s0167-2991(00)80643-6
M3 - Article
AN - SCOPUS:0036931713
SN - 0167-2991
VL - 143
SP - 67
EP - 76
JO - Studies in surface science and catalysis
JF - Studies in surface science and catalysis
ER -