Blandez Barradas, Juan Francisco; Primo Arnau, Ana María; Asiri, Abdullah; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo(Wiley-VCH Verlag, 2014-11-10)
[EN] Copper nanoparticles (NPs) supported on a series of
undoped and doped graphene materials (Gs) have been
obtained by pyrolysis of alginate or chitosan biopolymers,
modified or not with boric acid, containing Cu2+ ...
Barrejon, M.; Primo Arnau, Ana Maria; Gomez-Escalonilla, M.J.; Fierro, Jose Luis G.; García Gómez, Hermenegildo; Langa, F.(The Royal Society of Chemistry, 2015)
[EN] Nitrogen doped graphene was modified by N-alkylation using a combination of phase transfer catalysis and microwave irradiation. The resulting derivatives of N-doped graphene were analysed showing that the bandgap of ...
Dhakshinamoorthy, Amarajothi; He, Jinbao; Franconetti, Antonio; Asiri, Abdullah M.; Primo Arnau, Ana Maria; García Gómez, Hermenegildo(The Royal Society of Chemistry, 2018-03-21)
[EN] A series of defective graphenes containing or not containing N, B, S and other heteroatoms exhibited general activity as metal-free catalysts for the hydrogenation of C=C double bonds by hydrazine in the presence of ...
Frindy, Sana(Universitat Politècnica de València, 2018-02-27)
La siguiente tesis gira en torno al uso de biopolímeros renovables, ilustrado por la valorización de los residuos de cáscara de cáscara en el campo de la ciencia de los materiales y la catálisis y su tema se ocupa ...
DHAKSHINAMOORTHY, AMARAJOTHI; Primo Arnau, Ana María; Concepción Heydorn, Patricia; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo(Wiley, 2013-06)
[EN] Nitrogen (N)-, boron (B)-, and boron,nitrogen (B,N)-doped graphene (G) act as carbocatalysts, promoting the aerobic oxidation of the benzylic positions of aromatic hydrocarbons and cyclooctane to the corresponding ...
Rajabi, Fatemeh; Naserian, Sareh; Primo Arnau, Ana María; Luque, Rafael(Wiley-VCH Verlag, 2011-07-22)
The present manuscript describes a simple,
efficient and environmentally friendly room temperature aqueous catalytic approach to the selective
preparation of sulfoxides from sulfides utilising lowloaded supported iron ...
Primo Arnau, Ana María; Marino, Tiziana; Corma Canós, Avelino; Molinari, Raffaele; García Gómez, Hermenegildo(American Chemical Society, 2011)
When irradiated with visible light (¿ > 400 nm) 1wt%gold-supported ceria nanoparticles generate oxygen from water (10.5 ¿mol 3 h 1)moreefficiently than the standardWO3 (1.7 ¿mol 3 h 1) even under UV irradiation (9.5 ¿mol ...
Primo Arnau, Ana Maria; Franconetti, Antonio; Magureanu, Monica; Mandache, Nicolae Bogdan; Bucur, Cristina; Rizescu, Cristina; Cojocaru, Bogdan; Parvulescu, Vasile I.; García Gómez, Hermenegildo(The Royal Society of Chemistry, 2018-06-07)
[EN] H2 plasma has been used to generate carbon vacancies on reduced graphene oxide to increase its catalytic activity as a hydrogenation catalyst. A relationship between the power of the plasma treatment and the exposure ...
Magureanu, Monica; Mandache, N. B.; Rizescu, C.; Bucur, Cristina; Cojocaru, Bogdan; Man, Isabela C.; Primo Arnau, Ana Maria; Parvulescu, Vasile, I.; García Gómez, Hermenegildo(Elsevier, 2021-06-15)
[EN] Graphene oxide (GO) and N-doped graphene [(N)G] graphenes were submitted to H-2 glow discharge under different discharge regimes, in both the negative glow and positive column plasma regions. The resulted catalysts ...
Szalad, Horatiu; Peng, Lu; Primo Arnau, Ana Maria; Albero-Sancho, Josep; García Gómez, Hermenegildo(The Royal Society of Chemistry, 2021-10-07)
[EN] In comparison with the Co analog, small Fe clusters incorporated in a graphene matrix exhibit a photo-assisted increase of 110% in reverse water gas shift CO2 hydrogenation under UV-Vis light irradiation. Available ...
Primo Arnau, Ana María; Forneli Rubio, Mª Amparo; Corma Canós, Avelino; García Gómez, Hermenegildo(Wiley-VCH Verlag, 2012-11)
Carbon spheres from natural biopolymers (alginate and chitosan) are easily synthesised by thermal treatment between 400 and 800°C under an inert atmosphere. All the samples, including the untreated natural biopolymers, as ...
Esteve Adell, Iván(Universitat Politècnica de València, 2018-03-22)
A lo largo de los últimos años, el grafeno ha despertado un gran interés entre la comunidad científica debido las numerosas aplicaciones que ha encontrado dentro del campo de las industrias electrónica, informática y ...
Esteve-Adell, Iván; Bakker, Nadia; Primo Arnau, Ana María; Hensen, Emiel J. M.; García Gómez, Hermenegildo(John Wiley & Sons, 2017)
[EN] Graphene obtained by pyrolysis of alginate shows in the
absence of any metal, catalytic activity towards the decomposition
of ethylene glycol into hydrogen and carbon dioxide
at 250 8C due to the presence of ...
Candu, Natalia; Simion, Andrada; Coman, Simona M.; Primo Arnau, Ana Maria; Esteve-Adell, Iván; Parvulescu, Vasile I.; García Gómez, Hermenegildo(Springer-Verlag, 2018)
[EN] Few-layered graphene-supported 1.1.1 and 2.0.0 oriented Au and Cu2O nanoplatelets were prepared by one-step pyrolysis of the corresponding metal salts embedded in chitosan at 900 degrees C under inert atmosphere. These ...
Trandafir, Mihaela-Mirela; Florea, Mihaela; Neatu, Florentina; Primo Arnau, Ana Maria; García Gómez, Hermenegildo; Parvulescu, Vasile I.(John Wiley & Sons, 2016)
[EN] Graphene obtained by pyrolysis of alginate at 900 degrees C under inert atmosphere and exfoliation is used as a metal-free catalyst for reduction of nitro to amino groups with hydrogen as a reagent. The process is ...
Primo Arnau, Ana Maria; Puche Panadero, Marta; Pavel, Octavian D.; Cojocaru, Bogdan; Tirsoaga, Alina; Parvulescu, Vasile; García Gómez, Hermenegildo(The Royal Society of Chemistry, 2016)
[EN] Graphene oxide catalyzes oxidation by NaClO of primary benzyl and aliphatic amines to a product distribution comprising nitriles and imines. Nitriles are the sole product for long chain aliphatic amines. Spectroscopic ...
Espinosa, Juan Carlos; Navalón Oltra, Sergio; Primo Arnau, Ana María; Moral, Mónica; Fernandez Sanz, Javier; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo(Wiley, 2015)
[EN] Reduced graphene oxide exhibits high activity as Fenton catalyst with HO. radical generation efficiency over 82 % and turnover nos. of 4540 and 15023 for phenol degrdn. and H2O2 consumption, resp. These values compare ...
Primo Arnau, Ana María; Parvulescu, Vasile; García Gómez, Hermenegildo(American Chemical Society, 2017)
[EN] This Perspective article highlights how recent discoveries on the activity of defective graphene to promote different organic reactions as metal-free catalysts has led to propose certain substructures present on these ...