Buscar en RiuNet

Listar

Todo RiuNet

Mi cuenta

Acceder

Ayuda RiuNet

Admin. UPV

Listar por autor "Cojocaru, Bogdan"

Mostrando ítems 1-8 de 8

C-N cross-coupling on supported copper catalysts: The effect of the support, oxidation state, base and solvent

Tirsoaga Alina; Cojocaru, Bogdan; Teodorescu, Christian; Vasiliu, Florin; Grecu, Maria nicoleta; Ghica, Daniela; Parvulescu, Vasile I.; García Gómez, Hermenegildo (Elsevier, 2016)

[EN] A series of supported copper catalysts at two different loadings (1 and 2 wt%) have been prepared by deposition precipitation on various supports including TiO2, ZnO, Al2O3 and active carbon and submitted or not to ...
From Glucose Direct to Succinic Acid: an Optimized Recyclable Bi-functional Ru@MNP-MWCNT Catalyst

Podolean, Iunia; Cojocaru, Bogdan; García Gómez, Hermenegildo; Teodorescu, Christian; Parvulescu, Vasile I.; Coman, Simona M. (Springer-Verlag, 2018-11)

[EN] Ru@MNP-MWCNT catalysts were obtained via functionalization of nanostructured carbon-based carriers (ie, MWCNT) with base molecules (ie, 2-aminophenol and ethylenediamine) followed by the complexation with RuCl3. These ...
Graphene oxide as a catalyst for the diastereoselective transfer hydrogenation in the synthesis of prostaglandin derivatives

Coman, Simona M.; Podolean, Iunia; Tudorache, Madalina; Cojocaru, Bogdan; Parvulescu, Vasile I.; Puche Panadero, Marta; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2017)

[EN] Modification of GO by organic molecules changes its catalytic activity in the hydrogen transfer from i-propanol to enones, affecting the selectivity to allyl alcohol and diastereoselectivity to the resulting stereoisomers. ...
Improving TiO2 activity in photo-production of hydrogen from sugar industry wastewaters

Ilie, Mirela; Cojocaru, Bogdan; Parvulescu, Vasile I.; García Gómez, Hermenegildo (Elsevier, 2011)

[EN] A series of TiO2 photocatalysts dispersed on SiO2, modified with metals (Mn, Cr, V) or nonmetals (N or S) or covered with Au nanoparticles were prepared by incipient wetness impregnation, impregnation with urea or ...
Nanometer-thick films of antimony oxide nanoparticles grafted on defective graphenes as heterogeneous base catalysts for coupling reactions

Simion, Andrada; Candu, Natalia; COJOCARU, BOGDAN; Coman, Simona M.; Bucur, C.; Forneli Rubio, Mª Amparo; Primo Arnau, Ana Maria; Man, Isabela Costinela; PARVULESCU, VASILE I.; García Gómez, Hermenegildo (Elsevier, 2020-10)

[EN] Films of few-layers defective N-doped or undoped graphene (10-15 nm) containing antimony oxide nanoparticles (15-30 nm) have been prepared on quartz by pyrolysis of alginate or chitosan adsorbing Sb(OAc)(3). XPS shows ...
Nanometric-Thick Metal-Free h-Boron Nitride/Graphene Films as Base Catalyst for the Synthesis of Benzoxazoles

Rendón-Patiño, Alejandra; Primo Arnau, Ana Maria; Cojocaru, Bogdan; Ion, Sabina Gabriela; Popescu, Dana G.; Parvulescu, Vasile; García Gómez, Hermenegildo (John Wiley & Sons, 2022-06-22)

[EN] Catalysts are frequently used as pelletized powdered materials, but rarely as thin films. The present work reports the use of 2D h-boron nitride on few layers defective graphene (h-BN/fl-G) films of about 10 nm thickness ...
Nitrogen-doped graphene as metal free basic catalyst for coupling reactions

Candu, Natalia; Man, Isabella; Andrada, Simion; COJOCARU, BOGDAN; Coman, Simona M.; Bucur, C.; Primo Arnau, Ana Maria; García Gómez, Hermenegildo; PARVULESCU, VASILE I. (Elsevier, 2019-08)

[EN] N-doped defective graphene [(N)G] obtained by pyrolysis at 900 degrees C of chitosan contains about 3.7% of residual N atoms, distributed as pyridinic, pyrrolic and graphitic N atoms. It has been found that (N)G acts ...
RuCl3 supported on N-doped graphene as reusable catalyst for one-step glucose oxidation to succinic acid

Rizescu, Cristina; Podolean, Iunia; Cojocaru, Bogdan; Parvulescu, Vasile I.; Coman, Simona M.; Albero-Sancho, Josep; García Gómez, Hermenegildo (John Wiley & Sons, 2017)

[EN] Impregnation of RuCl3 on N-doped graphenes results in the formation of well-dispersed, small ruthenium oxyhydroxide nanoparticles supported on N-doped graphene that may exhibit high selectivity (87%) for the conversion ...