National Institute Of Materials Physics - Romania

Publications

169 articles found

151. Vanadium aluminium oxynitride catalysts for propane ammoxidation reaction - Effect of the V/Al ratio on the structure and catalytic behviour

Authors: Florea, M; Silvy, RP; Grange, P

Published: MAY 26 2005, , DOI: 10.1016/j.apcata.2005.02.032

152. Evidence for the participation of lattice nitrogen from vanadium aluminum oxynitrides in propane ammoxidation

Authors: Olea, M; Florea, M; Sack, I; Silvy, RP; Gaigneaux, EM; Marin, GB; Grange, P

Published: MAY 15 2005, , DOI: 10.1016/j.jcat.2005.02.020

153. Supported Co-based perovskites as catalysts for total oxidation of methane

Authors: Alifanti, M; Blangenois, N; Florea, M; Delmon, B

Published: MAR 8 2005, , DOI: 10.1016/j.apcata.2004.11.005

154. Influence of the co-precipitation pH on the physico-chemical and catalytic properties of vanadium aluminum oxide catalyst

Authors: Blangenois, N; Florea, M; Grange, P; Silvy, RP; Chenakin, SP; Bastin, JM; Kruse, N; Barbero, BP; Cadus, L

Published: JUN 10 2004, , DOI: 10.1016/j.apcata.2003.12.008

155. Epoxidation of cyclohexene on silicalite embedded BiOx clusters

Authors: Parvulescu, VI; Florea, M; Gelbard, G; Centeno, MA; Macovei, D; Lemay, G; Kaliaguine, S

Published: 2004, RECENT ADVANCES IN THE SCIENCE AND TECHNOLOGY OF ZEOLITES AND RELATED MATERIALS, PTS A - C, 154, 2654, DOI:

Silicalite embedded BiOx Clusters were prepared both with and without Na using sodium silicate and tetraethylorthosilicate as silicium precursors. Catalysts with 3 and 5 wt% Bi were obtained. The MFl structure was established from XRD, TEM, and N-2 adsorption measurements. No deterioration of the silicalite framework by bismuth was observed. Bi exists as BiOx clusters as evidenced from XPS and EXAFS characterization. These clusters are localized inside the silicalite channels. Py-FTIR measurements indicated that 5wt% Bi led to the formation of strong Lewis acid sites. Epoxidation of cyclohexene was found to depend oil both Bi and Na content. On 3%Bi-ZSM-5 it occurred with rather good conversion and selectivity to epoxide. No visible leaching was evidenced. The catalysts were reused for several runs.

156. Vanadium aluminium oxynitride catalyst for propane ammoxidation

Authors: Florea, M; Silvy, RP; Grange, P

Published: MAY-JUN 2004, , DOI:

157. Influence of the nitrogen content on butan-1-ol and butan-2-ol dehydration properties of nitrided phosphates

Authors: Delsarte, S; Florea, M; Grange, P

Published: MAY-JUN 2004, , DOI:

158. Influence of the preparation conditions on the physico-chemical and catalytic properties of a vanadium-aluminum oxynitride propane ammoxidation catalyst

Authors: Silvy, RP; Blangenois, N; Florea, M; Grange, P; Cadus, L; Barbero, B

Published: MAY-JUN 2004, , DOI:

159. Influence of the reaction conditions on the activity properties of vanadium-aluminium oxynitride propane ammoxidation catalyst

Authors: Florea, M; Silvy, RP; Grange, P

Published: DEC 8 2003, , DOI: 10.1016/S0926-860X(03)00591-X

160. Propane ammoxidation catalyst based on vanadium-aluminum oxynitride

Authors: Silvy, RP; Florea, M; Blangenois, N; Grange, P

Published: AUG 2003, , DOI: 10.1002/aic.690490830