A5014805835- Carbon Nanotubes in Composites
- Graphene research and applications
- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Diamond and Carbon-based Materials Research
- Advanced Photocatalysis Techniques
- Mechanical and Optical Resonators
- Fullerene Chemistry and Applications
- Graphene and Nanomaterials Applications
- Force Microscopy Techniques and Applications
- Advanced Sensor and Energy Harvesting Materials
- Catalysis and Hydrodesulfurization Studies
- Nanotechnology research and applications
- Nanomaterials for catalytic reactions
- Catalytic Processes in Materials Science
- Carbon and Quantum Dots Applications
- Petroleum Processing and Analysis
- Gas Sensing Nanomaterials and Sensors
- Advanced Cellulose Research Studies
- TiO2 Photocatalysis and Solar Cells
- Advancements in Battery Materials
- Electrocatalysts for Energy Conversion
- Analytical Chemistry and Sensors
- Lignin and Wood Chemistry
- Electrochemical sensors and biosensors
Instituto de Carboquímica
2016-2025
Fundacion Agencia Aragonesa para la Investigacion y el Desarrollo
2021
Universidad de Zaragoza
2004-2021
Instituto de Nanociencia y Materiales de Aragón
2021
Consejo Superior de Investigaciones Científicas
2003-2020
Zaragoza Logistics Center
2019-2020
Universidad de Valladolid
2018
University of Wollongong
2005-2008
National Research Council
2005-2006
University of Hull
2005-2006
A new polyaniline/multi-wall carbon nanotube (PANI/MWNT) composite has been successfully synthesized by an “in-situ” polymerisation process; Raman studies indicate a site-selective interaction between the quinoid ring of polymer and MWNTs opening way for charge transfer processes; transport measurements clearly reveal drastic changes in electronic behaviour confirming formation true material with enhanced properties.
The emission of a bright blue fluorescence is unique feature common to the vast variety polymer carbon dots (CDs) prepared from carboxylic acid and amine precursors. However, difficulty assign precise chemical structure this class CDs yet hampers comprehension their underlying luminescence principle. In work, we show that highly fluorescent model types can be citric ethylenediamine through low temperature synthesis routes. Facilitating controlled polycondensation processes, reveal sizes...
Polymerization of polyaniline in the presence carbon nanotubes results a soluble nanotube/polyaniline composite (Figure, left) displaying enhanced thermal and electrical properties. Polyaniline proximity grows more planar conformation due to strong π–π interactions simultaneously stabilized by self-organization nanotubes, thus forming aligned bundles micrometer lengths right).
We report the formation of a solid-state charge-transfer complex upon simultaneous reduction graphene oxide–polyaniline (GO-PANI) composite consisting GO sheets coated by thin layer PANI. The reduced R(GO-PANI) material exhibits an unprecedented donor–acceptor interaction at interface between RGO and PANI coating. A conceptual explanation is proposed in which plays dual role as electron acceptor large counterion stabilizing atypical intermediate oxidation state Moreover, interactions are...
The development of ion-selective electrodes (ISEs) using solid-state transducer materials is great interest for advanced potentiometric detection systems. At present, conducting polymers are the most used transducing materials. However, their reliability strongly related to chemical stability and formation internal water films. Here we report on use reduced graphene oxide (RGO) films different thicknesses as in all-solid-state ISEs. First, transduction mechanism fully analyzed, revealing...
Several samples of palladium-loaded single-wall carbon nanotubes and MAXSORB activated were prepared by means the reaction raw support with Pd2(dba)3.CHCl3. When used as support, palladium content in reached 13-31 wt % fine particles 5-7 nm average size obtained. In case was higher (30-50 %) particle larger (32-42 nm) than nanotube samples. At 1 atm room temperature, hydrogen capacity exceeds 0.1 is much supports (less 0.01 %). The maximum at temperature found to be 0.5 %. A 0.7 obtained 90...
As-grown and modified single-walled carbon nanotubes (SWCNTs) have been used as electrochemical active materials of electrode for capacitors (supercapacitors). A series SWCNTs has obtained by oxidation the as-grown in air at increasing temperatures range 300-550°C. The samples characterized Raman spectroscopy, adsorption, transmission electron microscopy (TEM). spectra show that heating temperature produces a decrease intensity radial tangential breathing modes an alteration structure up to...
Three-dimensional graphene aerogels of controlled pore size and reduction degree as important platform for several applications such energy storage or oil–water separation.
The type and distribution of oxygen functional groups in graphene oxide (GO) reduced (RGO) remain still a subject great debate. Local analytic techniques are required to access the chemistry these materials at nanometric scale. Electron energy loss spectroscopy scanning transmission electron microscope can provide suitable resolution, but GO RGO extremely sensitive irradiation. In this work we employ an optimized experimental setup reduce illumination below damage limit. maps obtained few...