Zobrazeno 1 - 10
of 92
pro vyhledávání: '"IOAN–CEZAR MARCU"'
Autor:
Marius C. Stoian, Cosmin Romanitan, Katja Neubauer, Hanan Atia, Constantin Cătălin Negrilă, Ionel Popescu, Ioan-Cezar Marcu
Publikováno v:
Catalysts, Vol 14, Iss 9, p 625 (2024)
A series of M(x)CoCeMgAlO mixed oxides with different transition metals (M = Cu, Fe, Mn, and Ni) with an M content x = 3 at. %, and another series of Fe(x)CoCeMgAlO mixed oxides with Fe contents x ranging from 1 to 9 at. % with respect to cations, wh
Externí odkaz:
https://doaj.org/article/e817ce672888442fb6facdc72f88e75b
Publikováno v:
Catalysts, Vol 12, Iss 8, p 816 (2022)
Layered double hydroxides (LDH) or hydrotalcites (HT), together with their corresponding mixed oxides, continue to arouse a great deal of research interest [...]
Externí odkaz:
https://doaj.org/article/f9efb349b60842a2a5b09a1cef5bb564
Autor:
Alexandra-Elisabeta Stamate, Octavian Dumitru Pavel, Rodica Zăvoianu, Ioana Brezeştean, Alexandra Ciorȋță, Ruxandra Bȋrjega, Katja Neubauer, Angela Koeckritz, Ioan-Cezar Marcu
Publikováno v:
Materials, Vol 14, Iss 23, p 7457 (2021)
The combination of layered double hydroxides (LDH) with graphene oxide (GO) enables the formation of nanohybrids with improved properties. This work focuses on the structural and catalytic properties of Ce-containing MgAl LDH-GO composites bearing di
Externí odkaz:
https://doaj.org/article/7ccc0026a33446a8b3e68f055af89863
Autor:
Alexandra-Elisabeta Stamate, Rodica Zăvoianu, Octavian Dumitru Pavel, Ruxandra Birjega, Andreea Matei, Marius Dumitru, Ioana Brezeștean, Mariana Osiac, Ioan-Cezar Marcu
Publikováno v:
Molecules, Vol 26, Iss 20, p 6191 (2021)
Mechanical activation and mechanochemical reactions are the subjects of mechanochemistry, a special branch of chemistry studied intensively since the 19th century. Herein, we comparably describe two synthesis methods used to obtain the following laye
Externí odkaz:
https://doaj.org/article/488fa60f2a4a46859792a2a2cd7ccd99
Autor:
Florin Andrei, Valentin Ion, Ruxandra Bîrjega, Maria Dinescu, Nicoleta Enea, Dan Pantelica, Maria Diana Mihai, Valentin-Adrian Maraloiu, Valentin Serban Teodorescu, Ioan-Cezar Marcu, Nicu Doinel Scarisoreanu
Publikováno v:
Nanomaterials, Vol 11, Iss 6, p 1371 (2021)
Tuning the intrinsic structural and stoichiometric properties by different means is used for increasing the green energy production efficiency of complex oxide materials. Here, we report on the formation of self-assembled nanodomains and their effect
Externí odkaz:
https://doaj.org/article/bb649cae3bc54ccbb8173600ee6afc02
Autor:
Marius Stoian, Vincent Rogé, Liliana Lazar, Thomas Maurer, Jacques C. Védrine, Ioan-Cezar Marcu, Ioana Fechete
Publikováno v:
Catalysts, Vol 11, Iss 4, p 427 (2021)
Methane, discovered in 1766 by Alessandro Volta, is an attractive energy source because of its high heat of combustion per mole of carbon dioxide. However, methane is the most abundant hydrocarbon in the atmosphere and is an important greenhouse gas,
Externí odkaz:
https://doaj.org/article/eda4fb819a3547d4aa2422a457beac69
Publikováno v:
Materials, Vol 13, Iss 23, p 5555 (2020)
This review paper focuses on perovskite-type materials as (photo)catalysts for energy and environmental applications. After a short introduction and the description of the structure of inorganic and hybrid organic-inorganic perovskites, the methods o
Externí odkaz:
https://doaj.org/article/6d6a547917684c868fa08729c1e86dfe
Autor:
Hussein Mahdi S. Al-Aani, Mihaela M. Trandafir, Ioana Fechete, Lucia N. Leonat, Mihaela Badea, Cătălin Negrilă, Ionel Popescu, Mihaela Florea, Ioan-Cezar Marcu
Publikováno v:
Catalysts, Vol 10, Iss 6, p 613 (2020)
To improve the catalytic performance of an active layered double hydroxide (LDH)-derived CuCeMgAlO mixed oxide catalyst in the total oxidation of methane, it was promoted with different transition-metal cations. Thus, two series of multicationic mixe
Externí odkaz:
https://doaj.org/article/17545315d1fd485881ede4bc484ae055
Publikováno v:
Catalysts, Vol 10, Iss 1, p 57 (2020)
Layered double hydroxides (LDH) are an extended class of two-dimensional anionic materials that are known for their unique lamellar structure, versatile composition, and tunable properties. The layered architecture allows the intercalation between th
Externí odkaz:
https://doaj.org/article/aff444e4b459487381c533520b66d091
Publikováno v:
Journal of the Serbian Chemical Society, Vol 75, Iss 8, Pp 1115-1124 (2010)
Vanadium–molybdenum oxides supported on Al2O3, CeO2 and TiO2 were prepared by a “wet” impregnation method, characterized using XRD, N2 adsorption, UV–Vis spectroscopy, electrical conductivity measurements and tested in the oxidative dehydroge
Externí odkaz:
https://doaj.org/article/a67dcda04a7a4a3ca4e1983573f5d1b7