Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Iuliean-Vasile Asaftei"'
Publikováno v:
Comptes Rendus. Chimie. 25:311-320
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15df5519d8ae2aa7f014661dc0250334
https://doi.org/10.5802/crchim.212
https://doi.org/10.5802/crchim.212
Autor:
Elvira Mahu, Cristina Giorgiana Coromelci, Doina Lutic, Iuliean Vasile Asaftei, Liviu Sacarescu, Valeria Harabagiu, Maria Ignat
Publikováno v:
Nanomaterials, Vol 11, Iss 5, p 1263 (2021)
A mesoporous titania structure has been prepared using the ultrasound-assisted sol-gel technique in order to find out a way to tailor its structure. The TiO2 obtained was compared to the same version of titania but synthesized by a conventional sol-g
Externí odkaz:
https://doaj.org/article/383be4fd5de5492e9d9ad4d5bb5508d2
Autor:
Ion Sandu, Neculai Catalin Lungu, Iuliean Vasile Asaftei, Nicolae Bilba, Elvira Mahu, Maria Ignat
Publikováno v:
Revista de Chimie. 71:403-412
The conversion of light hydrocarbons resulted as by-product of petroleum refining (mixtures of (n + i) butanes, 52.28 � 63.20 vol.%, (1-, cis-, trans-, 2-) butenes, 28.64 � 36.43 vol.% and propane � propylene, 4.79 � 14.64 vol.%) over bifunct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d749f593a57cb726490df77c11266746
https://doi.org/10.37358/rc.20.2.7943
https://doi.org/10.37358/rc.20.2.7943
Publikováno v:
Revista de Chimie. 70:2004-2009
The Zn and Ni were introduced into HZSM-5 zeolite by ion exchange method with aqueous solutions of Zn(NO3)2 and Ni(NO3)2, to investigate the catalytic activity and selectivity of modified Zn-HZSM-5 and Ni-HZSM-5 catalysts for conversion of butane-but
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23f3bac0a5bfa9801cfc82f652124821
https://doi.org/10.37358/rc.19.6.7264
https://doi.org/10.37358/rc.19.6.7264
Publikováno v:
Revista de Chimie. 70:527-531
4-(3,5-Dibromo-4-hydroxyphenyl)-2-(N,N-dialkylamino)-1,3-dithiol-2-ylium perchlorates have been synthesized by acid catalyzed cyclocondensation of 1-(3,5-dibromo-4-hydroxyphenyl)-1-oxaethan-2-yl dithiocarbamates. The latter compounds have been obtain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6473a74bab68acc94575a1aecd435cb9
https://doi.org/10.37358/rc.19.2.6949
https://doi.org/10.37358/rc.19.2.6949
Publikováno v:
Revista de Chimie. 70:161-164
New 4-(2-hydroxyphenyl)-1,3-dithiol-2-ylidene derivatives have been synthesized from the reaction of the corresponding 4-(2-hydroxyaryl)-2-dialkylamino-1,3-dithiol-2-ylium perchlorate with various methylene active compounds under basic conditions. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c5ba32c527e74c0454e787d49d5ebf6
https://doi.org/10.37358/rc.19.1.6873
https://doi.org/10.37358/rc.19.1.6873
Autor:
Corneliu Cojocaru, Cristina Coromelci, Maria Ignat, Valeria Harabagiu, Iuliean Vasile Asaftei, Petrisor Samoila, Elvira Mahu
Publikováno v:
Nanomaterials, Vol 10, Iss 998, p 998 (2020)
Nanomaterials
Volume 10
Issue 5
Nanomaterials
Volume 10
Issue 5
Porous titania was successfully synthesized by an ultrasound-assisted sol-gel route. The synthesis process was empirically modeled and optimized using the response surface methodology (RSM). Input variables adopted for optimization dealt with the wei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98369f058df6af49b02f4957535f63e2
https://www.mdpi.com/2079-4991/10/5/998
https://www.mdpi.com/2079-4991/10/5/998
Publikováno v:
Revista de Chimie. 69:2420-2424
The aromatization of n-heptane, one of the main components of light naphtha, has been investigated over HZSM-5 (Si/Al = 33.9) and Zn-HZSM-5: Zn1-HZSM-5 (0.86% Zn); Zn2-HZSM-5 (1.35% Zn) and Zn3-HZSM-5 (2.89% Zn) catalysts prepared by the ion exchange
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::030aa532ffa700c1167581702d277008
https://doi.org/10.37358/rc.18.9.6545
https://doi.org/10.37358/rc.18.9.6545
Publikováno v:
Revista de Chimie. 69:2167-2171
Piroxicam belongs to the non-steroidal antiinflammatory class, it is utilized as analgesic, anti-inflammatory and antipyretic. A simple and accurate HPLC method was optimized and validated in the QbD approach, for the determination of piroxicam in se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c398e894a27a63be3727bb17a4f228f
https://doi.org/10.37358/rc.18.8.6492
https://doi.org/10.37358/rc.18.8.6492
Publikováno v:
Revista de Chimie. 69:938-943
Paraffin�s and olefins in the cracked naphtha can be transformed into aromatics and iso-paraffins to reduce the olefins content as well to improve the octane number of the gasoline commercial fraction. In this work Ni-HZSM-5 bifunctional catalyst w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d05f55214dea3d709249fded2ed8c10f
https://doi.org/10.37358/rc.18.4.6232
https://doi.org/10.37358/rc.18.4.6232