Search Results - "Coman, Simona"

Multifunctional nanocomposites with non-precious metals and magnetic core for 5-HMF oxidation to FDCA by Tirsoaga, Alina, El Fergani, Magdi, Nuns, Nicolas, Simon, Pardis, Granger, Pascal, Parvulescu, Vasile I., Coman, Simona M.

“…[Display omitted] •Multifunctional nanocomposites with non-precious metals and magnetic core.•Catalysts combine Nb-MCM-41 and Mn, Co and Fe oxides as a…”
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Nonprecious Metals Catalyzing Hydroamination and C–N Coupling Reactions by Coman, Simona M, Parvulescu, Vasile I

“…This review highlights the recent achievements in replacing precious-metal-based catalysts with nonprecious-metal-based catalysts in two important syntheses:…”
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Efficient glucose dehydration to HMF onto Nb-BEA catalysts by Candu, Natalia, El Fergani, Magdi, Verziu, Marian, Cojocaru, Bogdan, Jurca, Bogdan, Apostol, Nicoleta, Teodorescu, Cristian, Parvulescu, Vasile I., Coman, Simona M.

“…The one-pot production of HMF from glucose in biphasic water/MIBK solvent using Nb(0.02 and 0.05 mol%)-Beta zeolites occurs with a selectivity to HMF of 84.3%…”
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From useless humins by-product to Nb@graphite-like carbon catalysts highly efficient in HMF synthesis by El Fergani, Magdi, Candu, Natalia, Tudorache, Madalina, Bucur, Cristina, Djelal, Nora, Granger, Pascal, Coman, Simona M.

“…[Display omitted] •Humins by-product was employed as carrier to prepare NbOx-based solid catalysts.•The preparation methodology induces structural…”
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The hydrolytic hydrogenation of cellulose to sorbitol over M (Ru, Ir, Pd, Rh)-BEA-zeolite catalysts by Negoi, Alina, Triantafyllidis, Kostas, Parvulescu, Vasile I., Coman, Simona M.

“…•Supported Ir, Pd, Rh and Ru catalysts were examined for the synthesis of sorbitol.•Ru-BEA was found to be the most active for the conversion of cellulose.•The…”
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d-Glucose hydrogenation/hydrogenolysis reactions on noble metal (Ru, Pt)/activated carbon supported catalysts by Lazaridis, Polykarpos A., Karakoulia, Stamatia, Delimitis, Andreas, Coman, Simona M., Parvulescu, Vasile I., Triantafyllidis, Kostas S.

“…•Glucose hydrogenation/hydrogenolysis at harsh conditions (180°C, 3–12h, 1.6MPa H2).•Pt/AC is highly selective for glucose hydrogenation to sorbitol.•Single…”
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Transesterification of vegetable oils over CaO catalysts by Verziu, Marian, Coman, Simona M., Richards, Ryan, Parvulescu, Vasile I.

“…The transesterification of different vegetable oils to biodiesel under thermal and ultrasound activation was carried out using commercial solid base CaO (CS)…”
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Nb-Based Zeolites: Efficient bi-Functional Catalysts for the One-Pot Synthesis of Succinic Acid from Glucose by El Fergani, Magdi, Candu, Natalia, Coman, Simona M, Parvulescu, Vasile I

“…The one-pot production of succinic acid from glucose was investigated in pure hot water as solvent using Nb (0.02 and 0.05 moles%)-Beta zeolites obtained by a…”
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Optimized Nb-Based Zeolites as Catalysts for the Synthesis of Succinic Acid and FDCA by El Fergani, Magdi, Candu, Natalia, Tudorache, Madalina, Granger, Pascal, Parvulescu, Vasile I, Coman, Simona M

“…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…”
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High catalytic activity of oriented 2.0.0 copper(I) oxide grown on graphene film by Primo, Ana, Esteve-Adell, Ivan, Blandez, Juan F., Dhakshinamoorthy, Amarajothi, Álvaro, Mercedes, Candu, Natalia, Coman, Simona M., Parvulescu, Vasile I., García, Hermenegildo

“…Metal oxide nanoparticles supported on graphene exhibit high catalytic activity for oxidation, reduction and coupling reactions. Here we show that pyrolysis at…”
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One-Step Pyrolysis Preparation of 1.1.1 Oriented Gold Nanoplatelets Supported on Graphene and Six Orders of Magnitude Enhancement of the Resulting Catalytic Activity by Primo, Ana, Esteve-Adell, Ivan, Coman, Simona N., Candu, Natalia, Parvulescu, Vasile I., Garcia, Hermenegildo

“…Pyrolysis of chitosan films containing Au3+ renders 1.1.1 oriented Au nanoplatelets (20 nm lateral size, 3–4 nm height) on a few layers of N‐doped graphene…”
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Upgrade of 5‑Hydroxymethylfurfural to Dicarboxylic Acids onto Multifunctional-Based Fe3O4@SiO2 Magnetic Catalysts by Tirsoaga, Alina, El Fergani, Magdi, Parvulescu, Vasile I, Coman, Simona M

“…The oxidation of 5-hydroxymethylfurfural (HMF) to valuable dicarboxylic acids has been investigated on magnetic-separable nanocatalysts in the search for…”
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ZnO/CQDs Nanocomposites for Visible Light Photodegradation of Organic Pollutants by Elena E. Toma, Giuseppe Stoian, Bogdan Cojocaru, Vasile I. Parvulescu, Simona M. Coman

“…Currently, carbon quantum dots (CQDs) have been widely investigated as an enhancing photocatalytic component of various nanocomposites. In this study,…”
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Novel Sol-Gel Synthesis of Acidic MgF2−x(OH)x Materials by Wuttke, Stefan, Coman, Simona M., Scholz, Gudrun, Kirmse, Holm, Vimont, Alexandré, Daturi, Maro, Schroeder, Sven L. M., Kemnitz, Erhard

“…Novel magnesium fluorides have been prepared by a new fluorolytic sol–gel synthesis for fluoride materials based on aqueous HF. By changing the amount of water…”
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AnesthesiaGUIDE: a MATLAB tool to control the anesthesia by Coman, Simona, Iosif, Diana

“…The goals of this paper are: (a) to investigate adaptive and fractional-order adaptive control algorithms for an automatic anesthesia process, using a…”
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Efficient magnetic recoverable acid-functionalized-carbon catalysts for starch valorization to multiple bio-chemicals by Podolean, Iunia, Anita, Florin, García, Hermenegildo, Parvulescu, Vasile I., Coman, Simona M.

“…[Display omitted] •Graphene oxide functionalized with strong Lewis acid triflate groups (GO@SO3CF3).•Sulphonic acid groups supported onto MWCNT…”
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Unprecedented Catalytic Wet Oxidation of Glucose to Succinic Acid Induced by the Addition of n-Butylamine to a Ru(III) Catalyst by Podolean, Iunia, Rizescu, Cristina, Bala, Camelia, Rotariu, Lucian, Parvulescu, Vasile I, Coman, Simona M, Garcia, Hermenegildo

“…A new pathway for the catalytic wet oxidation (CWO) of glucose is described. Employing a cationic Ru@MNP catalyst, succinic acid is obtained in unprecedently…”
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Catalytic features of Nb-based nanoscopic inorganic fluorides for an efficient one-pot conversion of cellulose to lactic acid by Verziu, Marian, Serano, Marion, Jurca, Bogdan, Parvulescu, Vasile I., Coman, Simona M., Scholz, Gudrun, Kemnitz, Erhard

“…[Display omitted] •Niobium-modified fluorides were prepared via the fluorolytic sol gel synthesis.•The influence of the preparation parameters upon the…”
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Lignin fragmentation over magnetically recyclable composite Co@Nb2O5@Fe3O4 catalysts by Opris, Cristina, Cojocaru, Bogdan, Gheorghe, Nicoleta, Tudorache, Madalina, Coman, Simona M., Parvulescu, Vasile I., Duraki, Bahir, Krumeich, Frank, van Bokhoven, Jeroen A.

“…[Display omitted] •Xwt%Co@Nb2O5@Fe3O4 - multifunctional and magnetic catalysts for lignin fragmentation.•Cobalt nanoparticles were highly dispersed on the…”
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From Glucose Direct to Succinic Acid: an Optimized Recyclable Bi-functional Ru@MNP-MWCNT Catalyst by Podolean, Iunia, Cojocaru, Bogdan, Garcia, Hermenegildo, Teodorescu, Cristian, Parvulescu, Vasile I., Coman, Simona M.

“…Ru@MNP-MWCNT catalysts were obtained via functionalization of nanostructured carbon-based carriers (ie, MWCNT) with base molecules (ie, 2-aminophenol and…”
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