Zobrazeno 1 - 10
of 369
pro vyhledávání: '"I. Parvulescu"'
Autor:
Iunia Podolean, Mara Dogaru, Nicolae Cristian Guzo, Oana Adriana Petcuta, Elisabeth E. Jacobsen, Adela Nicolaev, Bogdan Cojocaru, Madalina Tudorache, Vasile I. Parvulescu, Simona M. Coman
Publikováno v:
Nanomaterials, Vol 14, Iss 3, p 277 (2024)
The primary objective of this research was to develop efficient solid catalysts that can directly convert the lactic acid (LA) obtained from lignocellulosic biomass into alanine (AL) through a reductive amination process. To achieve this, various cat
Externí odkaz:
https://doaj.org/article/fb67600090b843958bec7ea50342cf75
Publikováno v:
iScience, Vol 25, Iss 5, Pp 104252- (2022)
Summary: A catalyst based on first-row Fe and Co with a record of 51% selectivity to C2-C4 hydrocarbons at 36% CO2 conversion is disclosed. The factors responsible for the C2+ selectivity are a narrow Co-Fe particle size distribution of about 10 nm a
Externí odkaz:
https://doaj.org/article/994cd5ad61654a1cb1dec699abaf4139
Autor:
Rodica Zăvoianu, Mădălina Tudorache, Vasile I. Parvulescu, Bogdan Cojocaru, Octavian D. Pavel
Publikováno v:
Molecules, Vol 27, Iss 23, p 8391 (2022)
A rapid, cheap and feasible new approach was used to synthesize the Mg0.375Fe0.375Al0.25-LDH in the presence of tetramethylammonium hydroxide (TMAH), as a nontraditional hydrolysis agent, applying both mechano-chemical (MC) and co-precipitation metho
Externí odkaz:
https://doaj.org/article/379c10a620334d41847a22c29f4a7588
Autor:
Bogdan Cojocaru, Daniel Avram, Raluca Negrea, Corneliu Ghica, Vadim G. Kessler, Gulaim A. Seisenbaeva, Vasile I. Parvulescu, Carmen Tiseanu
Publikováno v:
ACS Omega, Vol 4, Iss 5, Pp 8881-8891 (2019)
Externí odkaz:
https://doaj.org/article/3177f07c7142443e922446d73f262d03
Autor:
Bogdan Jurca, Lu Peng, Ana Primo, Alvaro Gordillo, Amarajothi Dhakshinamoorthy, Vasile I. Parvulescu, Hermenegildo García
Publikováno v:
Nanomaterials, Vol 12, Iss 18, p 3220 (2022)
Starting from the reported activity of Co-Fe nanoparticles wrapped onto graphitic carbon (Co-Fe@C) as CO2 hydrogenation catalysts, the present article studies the influence of a series of metallic (Pd, Ce, Ca, Ca, and Ce) and non-metallic (S in vario
Externí odkaz:
https://doaj.org/article/4dabfb3aefd944b0ada81f7ca2eccfdd
Publikováno v:
Catalysis Today. :267-276
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::595fbc79e41066c169206ce83ae96f29
https://doi.org/10.1016/j.cattod.2022.04.033
https://doi.org/10.1016/j.cattod.2022.04.033
Autor:
Lidia Căta, Natalia Terenti, Cristina Cociug, Niculina Daniela Hădade, Ion Grosu, Cristina Bucur, Bogdan Cojocaru, Vasile I. Parvulescu, Michal Mazur, Jiří Čejka
Publikováno v:
ACS Applied Materials & Interfaces. 14:10428-10437
Palladium nanoparticles entrapped in porous aromatic frameworks (PAFs) or covalent organic frameworks may promote heterogeneous catalytic reactions. However, preparing such materials as active nanocatalysts usually requires additional steps for palla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a46d34c9511f88b6477811d440cce05
https://doi.org/10.1021/acsami.1c24429
https://doi.org/10.1021/acsami.1c24429
Autor:
Magdi El Fergani, Natalia Candu, Madalina Tudorache, Pascal Granger, Vasile I. Parvulescu, Simona M. Coman
Publikováno v:
Molecules, Vol 25, Iss 21, p 4885 (2020)
Nb(0.05 moles%)-zeolites prepared via a post synthesis methodology (BEA, Y, ZSM-5), or a direct sol-gel method (Silicalite-1) were investigated in the hydroxymethylfurfural (HMF) oxidation by both molecular oxygen, in aqueous phase, and organic perox
Externí odkaz:
https://doaj.org/article/2e2d96a193ba4d64aaa2274784783232
Autor:
Sabina Ion, Cristina Opris, Bogdan Cojocaru, Madalina Tudorache, Irina Zgura, Aurelian C. Galca, Adina M. Bodescu, Madalin Enache, Gabriel-Mihai Maria, Vasile I. Parvulescu
Publikováno v:
Frontiers in Chemistry, Vol 6 (2018)
A novel and efficient one-pot system for green production of artificial lignin bio-composites has been developed. Monolignols such as sinapyl (SA) and coniferyl (CA) alcohols were linked together with caffeic acid (CafAc) affording a polymeric networ
Externí odkaz:
https://doaj.org/article/f319e1759b604324895940e700aaad7d
Autor:
Cristina Bucur, Hermenegildo García, Alina Jurca, Vasile I. Parvulescu, Alejandra Rendón-Patiño, Ana Primo, Bogdan Cojocaru
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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Microporous graphitic carbons obtained by pyrolysis of α-cyclodextrin have been conveniently doped with N and P elements by performing the thermal graphitization adding urea or phosphoric acid as source of these elements. Electron microscopy shows t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9859d34a45355c0ec3ff6dd22c506641
https://doi.org/10.1016/j.jcat.2021.11.034
https://doi.org/10.1016/j.jcat.2021.11.034