Listar Ciencias básicas por autor "49d8ced6-39cd-4a89-9f72-102e51f203d2"
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Anti‐corrosive additives for alkaline electrolyte in Al‐air batteries: NH4VO3 and polyoxometalates
Atencio Estrada, Anyie Priscilla; Avilés, Juan Ramón; Bolaños, Dayatri; Urcuyo Solórzano, Roberto; Montero Villalobos, Mavis Lili; González Flores, Diego; Ocón Esteban, Pilar (2021)Aluminum-air batteries are a promising alternative for portable energy storage. However, one of the significant issues in this technology is the corrosion of aluminum in alkaline electrolytes. In this study, we explored ... -
Aromatic and aliphatic thiol self-assembled monolayers on Au: Anchoring and delivering copper species
Urcuyo Solórzano, Roberto; Cortés Triviño, Esperanza; Rubert, Aldo A.; Benitez, G.; Montero Villalobos, Mavis Lili; Tognalli, Nicolás G.; Fainstein, Alejandro; Vela, M. E.; Salvarezza, R. C. (2011)The immobilization of dinuclear copper(II) acetate complexes (Cu2(CH3COO)4·2H2O) on self-assembled monolayers (SAMs) of different aliphatic and aromatic thiols with oxygen and nitrogen donors at the end group is investigated ... -
Caracterización bioquímica y espectroscópica de la interacción del aptámero con componentes de la espora de clostridium difficile y la superficie de óxido de grafeno
Hernández Cifuentes, Juan Sebastián (2023)Clostridioides difficile es un patógeno bacteriano formador de endosporas que causa infecciones asociadas al uso de antibióticos, primordialmente en entornos clínicos. Las esporas de C. difficile son altamente resistentes ... -
Chemical modification of graphene via hyperthermal molecular reaction
Dubey, Girjesh; Urcuyo Solórzano, Roberto; Abb, Sabine; Rinke, Gordon; Burghard, Marko; Rauschenbach, Stephan; Kern, Klaus (2014)Chemical functionalization of graphene is achieved by hyperthermal reaction with azopyridine molecular ions. The one-step, room temperature process takes place in high vacuum (10–7 mbar) using an electrospray ion beam ... -
Crecimiento de estructuras de carbono mediante deposición química en fase de vapor a baja presión
Varela Fonseca, Stephanie; Hernández Murillo, Camila; Montero Zeledón, Ernesto; Gutiérrez Fallas, Dionisio; Urcuyo Solórzano, Roberto; Puente Urbina, Allen (2022)Los alótropos de carbono han ganado interés en las últimas décadas debido a sus propiedades y a la gran variedad de posibles aplicaciones tecnológicas que han demostrado. Por dichas razones, la obtención de estos alótropos ... -
Electric-field control of single-molecule tautomerization
Mangel, Shai; Skripnik, Maxim; Polyudov, Katharina; Dette, Christian; Wollandt, Tobias; Punke, Paul; Li, Dongzhe; Urcuyo Solórzano, Roberto; Pauly, Fabian; Jung Jung, Soon; Kern, Klaus (2020)The electric field is an important parameter to vary in a single-molecule experiment, because it can directly affect the charge distribution around the molecule. Yet, performing such an experiment with a well-defined ... -
Electroactive copper (II) bimetallic self-assembled multilayers on Si (100)
Sánchez, Alejandra; Urcuyo Solórzano, Roberto; González Flores, Diego; Montalberth Smith, Ricardo; León Rojas, Carlos; Pineda Cedeño, Leslie William; Montero Villalobos, Mavis Lili (2012)Silicon (100) surfaces were modified by reacting 4-aminopyridine and Si–Cl bond. These surfaces were further used for tethering copper bimetallic complexes and growing monolayers and multilayers by changing the axial ... -
Electrochemical biosensor for quantitative determination of fentanyl based on immobilized cytochrome c on multi-walled carbon nanotubes modified screen-printed carbon electrodes
González Hernández, Jerson; Moya Alvarado, Guillermo; Alvarado Gámez, Ana Lorena; Urcuyo Solórzano, Roberto; Barquero Quirós, Miriam; Arcos Martínez, María Julia (2022)Fentanyl is a powerful synthetic opioid used to treat severe pain. New administration routes toward its illegal consumption for recreational purposes pose a growing threat to public health, either due to misuse or abuse ... -
Evaluación de la capacidad del cemento Portland dopado con nanopartículas de TIO2 para la disminución de Pseudomonas aeruginosa y Escherichia coli en agua
Masís Bermúdez, Jéssica María (2022-10)El abastecimiento de agua potable no es equitativo para la población mundial y este problema empeora debido al crecimiento poblacional, a la contaminación, al calentamiento global y a un inadecuado tratamiento de potabilización. ... -
High Performance Graphene–Oxide–Metal Diode through Bias‐Induced Barrier Height Modulation
Urcuyo Solórzano, Roberto; Duong, Dinh Loc; Jeong, Hye Yun; Burghard, Marko; Kern, Klaus (2016)Graphene–oxide–metal diodes are presented whose performance is preserved even for thin oxide layers, as required for high frequency applications. The diodes, which rely upon bias-induced modulation of graphene's work ... -
Hot carrier extraction from multilayer graphene
Urcuyo Solórzano, Roberto; Duong, Dinh Loc; Sailer, Patrick; Burghard, Marko; Kern, Klaus (2016)Hot carriers in semiconductor or metal nanostructures are relevant, for instance, to enhance the activity of oxide-supported metal catalysts or to achieve efficient photodetection using ultrathin semiconductor layers. ... -
Oxidative dissolution of synthetic vivianites as a method for the crystallization of molecular structural motifs
Rojas Gatjen, Esteban; Viales Montero, Christian; Urcuyo Solórzano, Roberto; González Flores, Diego; Montero Villalobos, Mavis Lili (2021)Isolation of structural motifs from minerals can be used to improve the understanding of fundamental processes such as catalytic mechanisms and spectroscopic vibrations. In this study, we designed an oxidative dissolution ... -
Perspectivas y aplicaciones reales del grafeno después de 16 años de su descubrimiento
Urcuyo Solórzano, Roberto; González Flores, Diego; Cordero Solano, Karla (2021)A 16 años del gran descubrimiento del grafeno los focos de atención vuelven a estar en este material con el reporte de su comportamiento superconductor dependiendo del apilado de sus capas. Sin embargo, su nombre durante ... -
Rapid Determination of the ‘Legal Highs’ 4-MMC and 4-MEC by Spectroelectrochemistry: Simultaneous Cyclic Voltammetry and In Situ Surface-Enhanced Raman Spectroscopy
González Hernández, Jerson; Ott, Colby Edward; Arcos Martínez, María Julia; Colina, Álvaro; Heras, Aránzazu; Alvarado Gámez, Ana Lorena; Urcuyo Solórzano, Roberto; Arroyo Mora, Luis E. (2021-12-31)The synthetic cathinones mephedrone (4-MMC) and 4-methylethcathinone (4-MEC) are two designer drugs that represent the rise and fall effect of this drug category within the stimulants market and are still available in ... -
Requirements for beneficial electrochemical restructuring: A model study on a cobalt oxide in selected electrolytes
Villalobos Porras, Javier; González Flores, Diego; Urcuyo Solórzano, Roberto; Montero Villalobos, Mavis Lili; Schuck, Götz; Beyer, Paul; Risch, Marcel (2021)The requirements for beneficial materials restructuring into a higher performance oxygen evolution reaction (OER) electrocatalyst are still a largely open question. Here erythrite (Co3(AsO4)2·8H2O) is used as a Co-based ... -
Self-assembly of a catechol-based macrocycle at the liquid–solid interface: experiments and molecular dynamics simulations
Saiz Poseu, Javier; Martínez Otero, Alberto; Roussel, Thomas; Hui, Joseph K. H.; Montero Villalobos, Mavis Lili; Urcuyo Solórzano, Roberto; MacLachlan, Mark J.; Faraudo, Jordi; Ruiz Molina, Daniel (2012)This combined experimental (STM, XPS) and molecular dynamics simulation study highlights the complex and subtle interplay of solvent effects and surface interactions on the 2-D self-assembly pattern of a Schiff-base ... -
Spectroelectrochemical Experiment for Studying Water Oxidation with a Nickel Oxide Catalyst
González Flores, Diego; Fernández Scott, Maria Gabriela; Urcuyo Solórzano, Roberto (2020)Electrochemical and spectroelectrochemical techniques are very important for characterizing energy materials. In the search for new sources of renewable energy, water splitting for hydrogen production and CO2 reduction is ... -
Structural and functional role of anions in electrochemical water oxidation probed by arsenate incorporation into cobalt-oxide materials
Villalobos Porras, Javier; González Flores, Diego; Klingan, Katharina; Chernev, Petko; Kubella, Paul; Urcuyo Solórzano, Roberto; Pasquini, Chiara; Mohammadi, Mohammad Reza; Smith, Rodney D.L.; Montero Villalobos, Mavis Lili; Dau, Holger (2019)Direct (photo)electrochemical production of non-fossil fuels from water and CO2 requires water-oxidation catalysis at near-neutral pH in the presence of appropriate anions that serve as proton acceptors. We investigate the ... -
Thin-layer black phosphorus/GaAs heterojunction pn diodes
Gehring, Pascal; Urcuyo Solórzano, Roberto; Duong, Dinh Loc; Burghard, Marko; Kern, Klaus (2015)Owing to its high carrier mobility and thickness-tunable direct band gap, black phosphorus emerges as a promising component of optoelectronic devices. Here, we evaluate the device characteristics of p-n heterojunction ...