Browsing División de Nanociencias y Materiales by Author "López Urías, Florentino"

Now showing items 21-32 of 32

    • Pine-tree-like morphologies of nitrogen-doped carbon nanotubes: Electron field emission enhancement 

      García Betancourt, María Luisa; Perea López, Néstor; Vega Díaz, Sofía Magdalena; López Urías, Florentino; Elías Arriaga, Ana Laura; Ortiz Medina, Josué; Muñoz Sandoval, Emilio; Terrones Maldonado, Mauricio (2014)
      "Nitrogen-doped multiwalled carbon nanotube (CNT) bundles exhibiting pine-tree-like morphologies were synthesized on silicon-silicon oxide (Si/SiO2) substrates using a pressure-controlled chemical vapor deposition process. ...

    • Pure and doped boron nitride nanotubes 

      Terrones Maldonado, Mauricio; Romo Herrera, José Manuel; Cruz Silva, Eduardo; López Urías, Florentino; Muñoz Sandoval, Emilio; Velázquez Salazar, J. Jesús; Terrones Maldonado, Humberto; Bandô, Yoshio; Golberg, Dmitri (2007-05)
      "More than ten years ago, it was suggested theoretically that boron nitride (BN) nanotubes could be produced. Soon after, various reports on their synthesis appeared and a new area of nanotube science was born. This review ...

    • Pyrrolic nitrogen-doped multiwall carbon nanotubes using ball-milled slag-SiC mixtures as a catalyst by aerosol assisted chemical vapor deposition 

      Vega Díaz, Sofía Magdalena; González Velázquez, Viviana Jehová; Morelos Gómez, Aarón; Tristán López, Ferdinando; Labrada Delgado, Gladis Judith; Rivera Escoto, Beatriz Adriana; Sánchez Salas, Roque; Cortés López, Alejandro Javier; Fajardo Díaz, Juan Luis; López Urías, Florentino; Terrones Maldonado, Mauricio; Muñoz Sandoval, Emilio (IOP Publishing, 2020)
      "We demonstrated that the ball-milled slag-SiC mixture is an effective catalyst to grow pyrrolic nitrogen-doped multiwall carbon nanotubes (N-MWCNTs) by aerosol assisted chemical vapor deposition (AACVD) method. N-MWCNTs ...

    • Síntesis y caraterización de nanoestructuras de carbono: anclaje de nanoparticulas de plata en nanotubos de carbono: teoría y experimento. 

      Zamudio Ojeda, Adalberto (2006)
      "En este trabajo se describen tres métodos sencillos y eficientes de anclaje de nanopartículas de plata en la superficie de nanotubos de carbono de pared múltiple dopados con nitrógeno. La importancia de los métodos ...

    • Synthesis and new properties of nanostructured zinc oxide, carbon and other layered materials. 

      Botello Méndez, Andrés Rafael (2009)
      "Existe una gran expectativa de que la Nanotecnologia impacte de manera positiva la calidad de vida a través de las nuevas aplicaciones que se deriven de esta.Dichas aplicaciones estarán basadas en fenómenos y características ...

    • Synthesis of ZnMn2O4 nanoparticles by a microwave-assisted colloidal method and their evaluation as a gas sensor of propane and carbon monoxide 

      Morán Lázaro, Juan Pablo; Guillén López, Erwin Said; López Urías, Florentino; Muñoz Sandoval, Emilio; Blanco Alonso, Oscar; Guillén Bonilla, Héctor; Guillén Bonilla, Alex; Rodríguez Betancourtt, Verónica María; Sánchez Tizapa, Marciano; Olvera Amador, María De la Luz (MDPI, 2018)
      "Spinel-type ZnMn2O4 nanoparticles were synthesized via a simple and inexpensive microwave-assisted colloidal route. Structural studies by X-ray diffraction showed that a spinel crystal phase of ZnMn2O4 was obtained at a ...

    • Synthesis, characterization and physical properties of carbon and boron nitride low dimensional systems. 

      Cruz Silva, Eduardo (2008)
      "Carbon nanotubes are versatile materials with promising applications based on their exceptional physical properties. Their applications depend strongly on the interactions that nanotubes have with their environment. In ...

    • Synthesis, characterization, and sensor applications of spinel ZnCo2O4 nanoparticles 

      Morán Lázaro, Juan Pablo; López Urías, Florentino; Muñoz Sandoval, Emilio; Blanco Alonso, Oscar; Sánchez Tizapa, Marciano; Carreón Alvarez, Alejandra; Guillén Bonilla, Héctor; Olvera Amador, María De la Luz; Guillén Bonilla, Alex; Rodríguez Betancourtt, Verónica María (MDPI, 2016-12)
      "Spinel ZnCo2O4 nanoparticles were synthesized by means of the microwave-assisted colloidal method. A solution containing ethanol, Co-nitrate, Zn-nitrate, and dodecylamine was stirred for 24 h and evaporated by a microwave ...

    • Temperature dependence of sensors based on silver-decorated nitrogen-doped multiwalled carbon nanotubes 

      Gracia Espino, Edgar Eduardo; Rebollo Plata, Bernabé; Martinez Gutierrez, Hugo; Muñoz Sandoval, Emilio; López Urías, Florentino; Endo, Morinobu; Terrones Maldonado, Humberto; Terrones Maldonado, Mauricio (2016)
      "Vapor sensors are easily fabricated onto alumina substrates using foils of silver-decorated nitrogen-doped multiwalled carbon nanotubes (CNX-MWNTs-Ag) as active sensing material. The vapor sensors are tested using carbon ...

    • Two sprayer CVD synthesis of nitrogen-doped carbon sponge-type nanomaterials 

      Muñoz Sandoval, Emilio; Fajardo Díaz, Juan Luis; Sánchez Salas, Roque; Cortés López, Alejandro Javier; López Urías, Florentino (2018)
      "Nitrogen-doped carbon sponge-type nanostructures (N-CSTNs) containing coaxial multiwalled carbon nanotubes are synthesized at 1020?°C by using a modified chemical vapor deposition (CVD) arrangement. Here, the CVD reactor ...

    • Understanding the electrochemistry of armchair graphene nanoribbons containing nitrogen and oxygen functional groups: DFT calculations 

      López Urías, Florentino; Fajardo Díaz, Juan Luis; Cortés López, Alejandro Javier; Rodríguez Corvera, Cristina de Lourdes; Jiménez Ramírez, Luis Ernesto; Muñoz Sandoval, Emilio (Royal Society of Chemistry, 2020)
      "The surface and edge chemistry are vital points to assess a specific application of graphene and other carbon nanomaterials. Based on first-principles density functional theory, we investigate twenty-four chemical functional ...

    • Wrinkled nitrogen-doped carbon belts 

      Fajardo Díaz, Juan Luis; López Urías, Florentino; Muñoz Sandoval, Emilio (2018)
      "Graphene, carbon nanotubes, and fullerenes are nanomaterials with outstanding properties such as electrical, thermal, mechanical strength, flexibility, and high surface area. These nanomaterials are used as building blocks ...