Výsledky vyhledávání - "Daniel Ramírez González"

Akademický článek

UV and Visible light photodegradation of methylene blue with graphene decorated titanium dioxide

Autor: M A Acosta-Esparza, L P Rivera, A Pérez-Centeno, A Zamudio-Ojeda, Daniel Ramírez González, A Chávez-Chávez, M A Santana-Aranda, J Santos-Cruz, J G Quiñones-Galván

Publikováno v: Materials Research Express, Vol 7, Iss 3, p 035504 (2020)

Photocatalytic degradation of methylene blue by graphene decorated titanium dioxide (TiO _2 ) powders heated at different temperatures was analyzed. The powders were prepared by mixing TiO _2 with graphene prepared by the modified Hummers method. A t

Externí odkaz: https://doaj.org/article/88dc481cdadb4f2587f81c88f1e96c7a

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Caffeine as Nitrogen Source for Reduce Graphene Doping, and Its Functionalization with Silver Nanowires

Autor: Ivan Guillen-Escamilla, Angel Gabriel Rodriguez-Vazquez, Daniel Ramírez-González, Adalberto Zamudio-Ojeda, Hugo Tiznado, Jose de Jesus Cruz-Rivera

In this work, we propose an easy and a low cost method for the synthesis of Nitrogen-Doped Graphene NDG and its silver nanowires NW functionalization NWGN. The synthesis was performed using the improved graphene oxide method, chemical reduction of gr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a3b92ad2f905240306b93c798022592
https://doi.org/10.20944/preprints201807.0469.v1

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Magnetic Properties of Encapsulated Nanoparticles in Nitrogen-Doped Multiwalled Cabon Nanotubes Embedded in SiOx Matrices

Autor: Florentino López-Urías, Emilio Muñoz-Sandoval, J.C. Faloh-Gandarilla, Daniel Ramírez-González, Ramírez-Manzanares G, Mauricio Terrones, Morelos-Gómez A, S. Diaz-Castanon, David Meneses-Rodríguez

Publikováno v: Journal of Nanoscience and Nanotechnology. 10:5576-5582

We report the production, characterization, thermal transformations (400-1000 degrees C), and magnetic properties of nanoparticles encapsulated in nitrogen-doped multiwall carbon nanotubes (CNx-MWNT), which were embedded in silicon oxide (SiOx) matri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58145ac9b6904000400925ac562e2dbc
https://doi.org/10.1166/jnn.2010.3082

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Longitudinal Cutting of Pure and Doped Carbon Nanotubes to Form Graphitic Nanoribbons Using Metal Clusters as Nanoscalpels

Autor: Emilio Muñoz-Sandoval, Andrés R. Botello-Méndez, Humberto Terrones, Daniel Ramírez-González, Lijie Ci, Viviana Jehová González, David Meneses-Rodríguez, Mauricio Terrones, Pulickel M. Ajayan, Ana Laura Elías

Publikováno v: Nano Letters. 10:366-372

We report the use of transition metal nanoparticles (Ni or Co) to longitudinally cut open multiwalled carbon nanotubes in order to create graphitic nanoribbons. The process consists of catalytic hydrogenation of carbon, in which the metal particles c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::743f41aefec7393a767c04b763eaa567
https://doi.org/10.1021/nl901631z

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Ex-MWNTs: graphene sheets and ribbons produced by lithium intercalation and exfoliation of carbon nanotubes

Autor: Claudia G. Espinosa-González, Daniel Ramírez-González, Yadira I. Vega-Cantú, Ferdinando Tristán-López, Mauricio Terrones, David J. Smith, David A. Cullen, Abraham G. Cano-Márquez, Jessica Campos-Delgado, Fernando J. Rodríguez-Macías

Publikováno v: Nano letters. 9(4)

We found that multiwalled carbon nanotubes (MWNTs) can be opened longitudinally by intercalation of lithium and ammonia followed by exfoliation. Intercalation of open-ended tubes and exfoliation with acid treatment and abrupt heating provided the bes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1142662aca332070d80447755c3147e
https://pubmed.ncbi.nlm.nih.gov/19260705

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