A5027112063- Corrosion Behavior and Inhibition
- Supercapacitor Materials and Fabrication
- Bone Tissue Engineering Materials
- Magnesium Alloys: Properties and Applications
- Titanium Alloys Microstructure and Properties
- Metal and Thin Film Mechanics
- Conducting polymers and applications
- Hydrogen embrittlement and corrosion behaviors in metals
- Dental materials and restorations
- Advanced battery technologies research
- Electron and X-Ray Spectroscopy Techniques
- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
- Material Properties and Applications
- Orthopaedic implants and arthroplasty
- Concrete Corrosion and Durability
- Spanish Literature and Culture Studies
- Electrospun Nanofibers in Biomedical Applications
- Advancements in Battery Materials
- Electrocatalysts for Energy Conversion
- Advanced Sensor and Energy Harvesting Materials
- Early Modern Spanish Literature
- Anodic Oxide Films and Nanostructures
- Comparative Literary Analysis and Criticism
- Copper Interconnects and Reliability
Cenim - Centro Nacional de Investigaciones Metalurgicas
2003-2023
Instituto de Ciencia de Materiales de Madrid
2009-2017
Consejo Superior de Investigaciones Científicas
2007-2017
University of Alicante
2010
International Council on Mining and Metals
2010
Max-Planck-Institut für Nachhaltige Materialien
2003-2004
Max Planck Society
2004
Spanish National Centre for Cardiovascular Research
2004
Universidad Complutense de Madrid
1998-1999
Carbon nanofibers (CNFs) show a high electrical conductivity but reduced specific surface area that limits their use as electrode materials for supercapacitors. In this work, amorphous CNFs, with relatively are easily activated in KOH, using certain KOH/CNF weight ratios. Activation does not produce any important change the shape, roughness, diameter, graphene sheet size, and of starting nanofibers. However, activation leads to new micropores larger areas well higher content basic oxygen...
The aim of this work was to prepare hydroxyapatite coatings (HAp) by a sol-gel method on Ti6Al4V alloy and study the bioactivity, biocompatibility corrosion protection behaviour these in presence simulated body fluids (SBFs). Thermogravimetric/Differential Thermal Analyses (TG/DTA) X-ray Diffraction (XRD) have been applied obtain information about phase transformations, mass loss, identification phases developed, crystallite size degree crystallinity obtained HAp powders. Fourier Transformer...
Mn oxide and/or Co are deposited on flexible carbon cloth by a cathodic potentiodynamic procedure from their respective sulfates. In KOH electrolyte, the charge stored reversible redox reactions of two oxides (battery response) overlaps with double layer (supercapacitor response). These charges or capacities compared. For electrodes having one only, either oxide, highest capacity is obtained for 8 wt% load. To overcome this limitation, both and simultaneously sequentially electrodeposited...
This paper provides a procedure for evaluating the capacity or charge of composites consisting battery-type electrode and supercapacitor-type one. The composites, which are binder-free flexible materials, consist cobalt oxide (CoOx) electrodeposited on fibers carbon cloth (CC). deposited CoOx shows response. CC substrate here reported is based galvanostatic charge/discharge measurements. It easier, less laborious faster than kinetic study by cyclic voltammetry. two procedures compared....
For their use in supercapacitors, aqueous electrolytes of acidic (H2SO4), neutral (Na2SO4, K2SO4), and basic (NaOH, KOH) nature are studied, using two microporous binder-free self-standing carbon cloths as electrodes. The show similar porosities specific surface areas but different contents oxygen groups. working potential window the capacitance associated with cations anions measured. From these parameters, charges stored by at electric electrolyte/electrode interface deduced. charge is...
Metallic corrosion is an all-time dangerous and extremely expensive problem. Here, we present autonomous self-healing polymer coating based on epoxy resin superabsorbent (SAP) blend as anticorrosion coating. Tailor-made coatings were manufactured by controlling the location of SAP surface, middle, bottom The behavior process analyzed at macro, micro, sub-micro scales using Electrochemical Impedance Spectroscopy (EIS). preferentially located showed resistance values higher than 1 × 1011 Ωcm2...
Biocarbon monoliths were obtained from Eucalyptus grandis and the influence of wood anisotropy on electrical electrochemical performance as supercapacitor electrodes was studied. They produced pieces cut along transversal longitudinal direction tree trunk, followed by pyrolysis and, for some them, also activation with CO2. Monoliths drilled channels obtained. All characterized SEM, nitrogen adsorption/desorption isotherms, conductivity measurements measurements, latter in 2M aqueous H2SO4...
Application of novel organic-inorganic hybrid sol-gel coatings containing dispersed hydroxyapatite (HAp) particles improves the biocompatibility, normal human osteoblast (NHOst) response in terms viability and adhesion a Ti6Al4V alloy routinely used medical implants. The incorporation HAp additionally results more effective barrier proprieties improved corrosion protection through higher degree cross-linking organopolysiloxane matrix enhanced film thickness.
Specific capacitance of carbons in aqueous KOH electrolyte seems to have two contributions, a double-layer and pseudocapacitance. Moreover, the specific increases as surface area does. Here, we report that pseudocapacitance is associated with K+ ion both OH– ions. The former dominates real two-electrode supercapacitor. Two microporous carbon monoliths areas similar for micropores below 0.63 nm but different larger are chosen. There correlation between due those ions sizes above certain...
The corrosion behavior of AZ31B Mg alloy exposed to Ringer’s, phosphate-buffered saline (PBS), Hank’s, and simulated body fluid (SBF) solutions for 4 days was investigated using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, weight loss, surface characterization. Changes in rates with immersion time determined by loss measurements were compared EIS data determine the possibility obtaining quantitative information. In addition, changes protective properties...