Zobrazeno 1 - 10
of 69
pro vyhledávání: '"N.G. Gallegos"'
Autor:
N.G. Gallegos, Ana María Álvarez, Jose Fernando Bengoa, Maria Florencia Rochetti Yharour, Sergio Gustavo Marchetti, M.V. Cagnoli, Nicolás Antonio Fellenz
Publikováno v:
International Journal of Hydrogen Energy. 39:12563-12571
Bulk γ-Fe2O3 (maghemite) and Fe3O4 (magnetite) were synthesized with Fe(III) hydroxyacetate as an intermediate during the preparation step. The fresh and used catalysts were characterized by X-ray diffraction, N2 adsorption at 77 K, Mössbauer spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::237fede0566a93309a329e7343b64733
https://doi.org/10.1016/j.ijhydene.2014.06.076
https://doi.org/10.1016/j.ijhydene.2014.06.076
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Control of grid assistance is proposed in this study for a renewable hydrogen generation system of simple and robust structure. Here, the grid connection serves the dual purpose of minimising the effect of wind power variations in the electrolyser su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b012226fc792fa046e107fcbb87cb9a3
https://ieeexplore.ieee.org/document/7378535/
https://ieeexplore.ieee.org/document/7378535/
Autor:
Jose Fernando Bengoa, N. A. Fellenz, Sergio Gustavo Marchetti, Ana María Álvarez, M.V. Cagnoli, Leonardo Andrés Cano, N.G. Gallegos
Publikováno v:
Applied Catalysis A: General. 379:105-110
In order to analyze the influence of the crystal size of the active phase in the Fischer-Tropsch synthesis (FTS), two iron catalysts, supported on MCM-41 and SBA-15, were prepared by incipient wetness impregnation and tested in this reaction. The sol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92b52d23dbefe043c9e03f6d058af832
https://doi.org/10.1016/j.apcata.2010.03.007
https://doi.org/10.1016/j.apcata.2010.03.007
Autor:
N. A. Fellenz, Jose Fernando Bengoa, Leonardo Andrés Cano, Ana María Álvarez, M.V. Cagnoli, Sergio Gustavo Marchetti, N.G. Gallegos
Publikováno v:
Hyperfine Interactions. 195:5-13
Two Fe/MCM-41 systems, one of them sylilated, were obtained to be used as catalysts in Fischer–Tropsch reaction. They have more than 90% of the iron species located inside the support channels, leading to a narrow crystal size distribution accessib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4de66eebf17698b67954a6cd2a5e6f5
https://doi.org/10.1007/s10751-009-0094-6
https://doi.org/10.1007/s10751-009-0094-6
Autor:
N.G. Gallegos, M.V. Cagnoli, Sergio Gustavo Marchetti, Jose Fernando Bengoa, Damian Jose Gabriel Marino, Eduardo R. Herrero, Ana María Álvarez, Sandra G. Casuscelli
Publikováno v:
Catalysis Today. :632-638
Ti-MCM-41 catalysts were prepared incorporating Ti by post-synthesis methods: wetness and wet impregnation of MCM-41 mesoporous solid. The samples were characterized by XRD at low angle, UV–vis DRS, Raman spectroscopy, BET, ICP and colorimetry. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32a9d521a43123284aeda7981c94c2e5
https://doi.org/10.1016/j.cattod.2007.12.111
https://doi.org/10.1016/j.cattod.2007.12.111
Autor:
N.G. Gallegos, C.D. Duarte de Souza, Martin Schmal, Ana María Álvarez, M.V. Cagnoli, Jose Fernando Bengoa, Sergio Gustavo Marchetti
Publikováno v:
Applied Catalysis A: General. 326:113-119
In order to study if the SMSI effect produces benefitial results on the Fischer-Tropsch (FT) reaction using the Fe/Nb2O5 system we prepared two catalysts by reduction at two different temperatures. The solids were characterized by Mössbauer spectros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b62d40ef843053ccefe68e85258703d1
https://doi.org/10.1016/j.apcata.2007.04.005
https://doi.org/10.1016/j.apcata.2007.04.005
Autor:
Sergio Gustavo Marchetti, N.G. Gallegos, Ana María Álvarez, M.V. Cagnoli, Jose Fernando Bengoa
Publikováno v:
Applied Catalysis A: General. 325:68-75
Two Fe/carbon catalysts were prepared to study the influence of the intermediate iron species on the activity and selectivity in the Fischer-Tropsch synthesis (FTS). The solids were characterized by XRD, CO chemisorption, Atomic Absorption, Nitrogen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96c332fd0f0a4bc365941a554372e0ab
https://doi.org/10.1016/j.apcata.2007.03.012
https://doi.org/10.1016/j.apcata.2007.03.012
Autor:
Matthew Weyland, Ana María Álvarez, Jose Fernando Bengoa, Paul A. Midgley, Marta V. Cagnoli, N.G. Gallegos, M. Sergio Moreno, Sergio Gustavo Marchetti
Publikováno v:
Micron. 37:52-56
Electron microscopy techniques are used to visualize the spatial distribution of iron nanoparticles inside a mesoporous MCM-41 molecular sieve. Direct observation of the iron oxide nanoparticles by STEM-HAADF imaging reveals a highly non-uniform spat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dab91212e37a78bf44659232cd5289a8
https://doi.org/10.1016/j.micron.2005.06.003
https://doi.org/10.1016/j.micron.2005.06.003
Autor:
Mónica Elsie Crivello, Jose Fernando Bengoa, Eduardo R. Herrero, Sergio Gustavo Marchetti, Ana María Álvarez, Sandra G. Casuscelli, N.G. Gallegos, M.V. Cagnoli
Publikováno v:
Catalysis Today. :397-403
Ti-MCM-41 was prepared and characterized. The isomorphical substitution of Si 4+ by Ti 4+ and the presence of mesoporous hexagonal structure were verified. The solid was silylated with increasing quantities of hexamethyldisilazane. This process did n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2caf076b00f02a35877fcd79269cd872
https://doi.org/10.1016/j.cattod.2005.07.034
https://doi.org/10.1016/j.cattod.2005.07.034
Autor:
Liliana Verónica Mogni, Jose Fernando Bengoa, Sergio Gustavo Marchetti, Ana María Álvarez, N.G. Gallegos, M.V. Cagnoli, M.S. Moreno
Publikováno v:
Microporous and Mesoporous Materials. 84:153-160
We report the synthesis of the MCM-41 mesoporous solid chosen as support of Fe nanoparticles, which yields a narrow distribution of oxide crystal sizes. MCM-41 was synthesized in two different ways, with and without pH adjustment during the synthesis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea145c816a498f6f047f7afbaba13a79
https://doi.org/10.1016/j.micromeso.2005.05.018
https://doi.org/10.1016/j.micromeso.2005.05.018