Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Rosaria Chiappetta"'
Synthesis of borosilicalite-1 with more than four boron per unit cell from fluoride containing media
Autor:
Antonio Fonseca, J. L. Guth, Guy Demortier, Rosario Aiello, L. Delmotte, Rosaria Chiappetta, Janos B. Nagy, F. Testa, Fortunato Crea, J. C. Bertrand
Publikováno v:
Journal of Porous Materials. 14:191-204
More than four boron per unit cell has been introduced into the framework of silicalite-1, using fluorine containing media. The initial gels were of composition 9MF–xH3BO3–10SiO2–1.25TPABr–330 H2O with M = NH4, Na, K and Cs and x = 0.1–10.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6fe900f371d29a2d4da8d4e1042f097
https://doi.org/10.1007/s10934-006-9024-z
https://doi.org/10.1007/s10934-006-9024-z
Autor:
R. Szostak, Antonio Fonseca, Rosaria Chiappetta, Flaviano Testa, Janos B. Nagy, Rosario Aiello
Publikováno v:
Zeolites. 18:106-114
Pure MFI and MEL zeolites were obtained at 170°C from clear solutions of general composition SiO 2 : 0.0004 Al 2 O 3 : 0.30 Na[in2]O: aTAABr (or TAAOH): 40H 2 O with a = 0.03 –0.16 and TAA = TEA, TPA or TBA. The physicochemical characteristics (XR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1eee3d3fed2ab4bf7eb8b56a60fc9b18
https://doi.org/10.1016/s0144-2449(96)00133-9
https://doi.org/10.1016/s0144-2449(96)00133-9
Autor:
Rosaria Chiappetta, Fortunato Crea, Antonio Fonseca, Janos B. Nagy, Rosario Aiello, Flaviano Testa
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 115:223-227
The synthesis of borosilicalite-1 in fluoride-containing media can lead to a number of boron atoms per unit cell of higher than four, the maximum amount obtained in alkaline media. The preferential countercations to negative charges linked to framewo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c225e425a0cbfdb5c48806cef161eca
https://doi.org/10.1016/0927-7757(96)03670-9
https://doi.org/10.1016/0927-7757(96)03670-9
Publikováno v:
Microporous Materials. 2:269-280
The structure of the synthetic zeolite EMC-2, in both its calcined [a=17.3864(4) A and c=28.3459(9) A] and its as-synthesized, partially dehydrated [a=17.3741 (1) A and c=28.3646(2) A] forms, has been investigated in the space group P63/mmc using pow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::caf0fdf7122e1621ea843c1f97dc7d86
https://doi.org/10.1016/0927-6513(93)e0062-l
https://doi.org/10.1016/0927-6513(93)e0062-l
Publikováno v:
Materials Research Bulletin. 25:891-897
Different processes for the preparation of fluorozirconate glasses (ZBLAN) have been investigated by infrared spectroscopy (IR) and x-ray diffraction (XRD) on fluoride powders, during the reaction. Glasses have been prepared with 20-10-5-0 (% weight)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97ce2c0ad4ab9e5bc9ac4eb2e26aaaaa
https://doi.org/10.1016/0025-5408(90)90067-c
https://doi.org/10.1016/0025-5408(90)90067-c
Autor:
Geneviève Blondin, Francesc Lloret, Rosaria Chiappetta, José Antonio Real, Miguel Julve, Jean‐Christophe Colin, Giovanni De Munno, Yves Journaux
Publikováno v:
Angewandte Chemie International Edition in English. 33:1184-1186
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83a54a31991f8d26def45a1baa83b69e
https://doi.org/10.1002/anie.199411841
https://doi.org/10.1002/anie.199411841
Publikováno v:
Microporous and Mesoporous Materials
Microporous and Mesoporous Materials, Elsevier, 1998, 20, pp.187-196
Scopus-Elsevier
CIÊNCIAVITAE
Microporous and Mesoporous Materials, Elsevier, 1998, 20, pp.187-196
Scopus-Elsevier
CIÊNCIAVITAE
Interaction of ammonia (both as NH 3 and ND 3 ) with plain and Al 13 -pillared montmorillonite has been studied by means of IR spectroscopy. Up to seven types of hydroxyls have been identified on the basis of their behaviour, for which a tentative na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61ac7f0369468c97b27463d5dc8b7b1e
http://hdl.handle.net/11583/1651418
http://hdl.handle.net/11583/1651418
IR data concerning CO adsorption at 77 K have been used to characterize the various hydroxys of some zeolites in protonic form: ZSM5, TON, MOR (as such and dealuminated), dealuminated MAZ. CO-complexing occurs via the C end and shows features typical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af9071d7aa70d5320cefd326d109bb94
https://doi.org/10.1016/b978-1-4832-8383-8.50117-3
https://doi.org/10.1016/b978-1-4832-8383-8.50117-3
Publikováno v:
Scopus-Elsevier
CIÊNCIAVITAE
CIÊNCIAVITAE
Comparative IR and UV-Vis spectroscopic studies of propene adsorption and reaction on H-mordenite, dealuminated H-mordenite, dealuminated mazzite, montmorillonite and Al13-pillared montmorillonite have been carried out. On all systems propene is firs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e01c1a497dc52422050a45f341032d18
http://www.scopus.com/inward/record.url?eid=2-s2.0-0001039327&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0001039327&partnerID=MN8TOARS