Amaya Romero

ORCID: 0000-0001-8020-7367
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About
Contact & Profiles
Research Areas
  • Catalytic Processes in Materials Science
  • Graphene research and applications
  • Supercapacitor Materials and Fabrication
  • Catalysts for Methane Reforming
  • Catalysis and Hydrodesulfurization Studies
  • Carbon Nanotubes in Composites
  • Mesoporous Materials and Catalysis
  • Aerogels and thermal insulation
  • Ammonia Synthesis and Nitrogen Reduction
  • Catalysis for Biomass Conversion
  • Electrocatalysts for Energy Conversion
  • Hydrogen Storage and Materials
  • Nanomaterials for catalytic reactions
  • Catalysis and Oxidation Reactions
  • Advancements in Battery Materials
  • Surface Modification and Superhydrophobicity
  • Layered Double Hydroxides Synthesis and Applications
  • Advanced Sensor and Energy Harvesting Materials
  • Graphene and Nanomaterials Applications
  • Fiber-reinforced polymer composites
  • Advanced Cellulose Research Studies
  • Zeolite Catalysis and Synthesis
  • Graphite, nuclear technology, radiation studies
  • Phase Change Materials Research
  • Fuel Cells and Related Materials

University of Castilla-La Mancha
2016-2025

United States Naval Medical Research Unit SOUTH
2018

Graphenea (Spain)
2017

Hospital General Universitario de Ciudad Real
2011-2017

Novant Health Forsyth Medical Center
2000

Tufts University
2000

Biodiesel is produced by the transesterification of oil triglycerides with methanol or ethanol, in presence a homogeneous heterogeneous catalyst. This study aims to report results sunflower produce biodiesel using CaO nanoparticles supported on NaX zeolite as The effect concentration surface was studied range 5−25 wt %. reaction carried out at reflux temperature methanol, atmospheric pressure, time 6 h, and 6:1 molar ratio oil. Catalyst characterization X-ray diffraction, scanning electron...

10.1021/ie1006867 article EN Industrial & Engineering Chemistry Research 2010-08-18

The discovery of carbon nanostructures, essentially nanotubes (CNT) and nanofibres (CNF) has led to a big effort devoted their synthesis, characterization, surface modification use. Indeed, these structures have encountered application in wide range technological fields, such as adsorption, catalysis, hydrogen storage or electronics. Apart from the filamentous arrange graphene sheets conducting CNT CNF, can bond other different ways create with dissimilar properties. pairing pentagonal...

10.1039/c0jm01350a article EN Journal of Materials Chemistry 2010-10-22

Different samples of graphite oxide (GrO) were prepared by modification the Improved Hummers Method reported in literature. Graphite was used as raw material and KMnO4 H2SO4 chemical reagents. GrO analyzed Raman spectroscopy, SEM, TEM, elemental analysis, X-ray diffraction, N2 adsorption–desorption, thermogravimetric analysis. The results indicate that, after optimizing synthesis method, oxidation time reduced from 12 to 3 h, coagulation step removed, wash halved, use H3PO4 during no longer...

10.1021/acs.iecr.6b03533 article EN Industrial & Engineering Chemistry Research 2016-11-29

In this work, the CO2 capture capacity of different types carbon nanofibers (platelet, fishbone, and ribbon) amorphous have been measured at 26 °C as pressures. The results showed that more graphitic materials adsorbed less than materials. Then, aim was to improve adsorption by increasing porosity during chemical activation process.After process, platelet CNFs increased 1.6 times, whereas fishbone ribbon their 1.1 8.2 respectively. This increase after due an BET surface area pore volume in...

10.1021/es2046553 article EN Environmental Science & Technology 2012-06-09

Graphene, a new 2D material, is gaining lot of attention because its remarkable mechanical, electrical, chemical, thermal, and optical properties. Graphene synthesis procedures can follow two different strategies named as "bottom up" "top down". In the first one, carbonaceous carbon material used to deposite graphene over substrate and, in second graphite raw obtain using methods. Inside top down strategy, exfoliation nanomaterials, both oxide, considered cheap simple method synthesize...

10.1021/acs.iecr.5b03502 article EN Industrial & Engineering Chemistry Research 2016-01-06

The objective of this study was to prepare bifunctional catalysts based on iron and CaO test them in the biodiesel production using waste cooking oil (WCO) as feedstock. Two precursors were studied, Fe2O3 Fe(NO3)3·9H2O. identified crystalline phases Ca2Fe2O5 CaFeO3. Surface morphology textural properties (distribution active species, specific surface area, size, pore volume) also analyzed. Additionally, thermal stability studied 800 °C established optimum calcination temperature. density...

10.1021/acsomega.1c03586 article EN cc-by-nc-nd ACS Omega 2021-09-10

LaCo1-xNixO3 perovskites have been synthesized by self-combustion, characterized, and examined as catalyst precursors for the COx-free hydrogen production from catalytic ammonia decomposition at low temperatures. The influence of cobalt content well addition two dopant in different amount was studied optimized. Small Ni crystallite size high total basic sites were found to remarkably enhance activity. Moreover, bimetallic generated cobalt/nickel higher size, impurities lower active than pure...

10.1016/j.fuel.2022.124384 article EN cc-by-nc-nd Fuel 2022-05-06

Promising and highly novel catalysts based on ruthenium (Ru) supported reduced graphene oxide were synthesized, characterized tested for COx-free hydrogen generation by catalytic ammonia decomposition. Metal loading amount of a pre-reducing agent clearly affect the properties final catalysts. A Ru higher than 2.5 wt% resulted in particles size 5 nm, which agglomerated, thus decreasing most active sites (B5 type-sites) therefore conversion. Additionally, (GO) hydrothermal pre-reduction with...

10.1016/j.scp.2022.100615 article EN cc-by-nc-nd Sustainable Chemistry and Pharmacy 2022-02-02

This research presents a novel approach to synthesising polyurethane (PUR)-based aerogels at the pilot scale, optimizing synthesis variables such as gelation solvent, solids content, chain extender/isocyanate ratio, and dispersion mode. The content (2-11 wt.%) is parameter with most influence on density of aerogels, clear decrease in this property decreases. On other hand, it was demonstrated that minimizing excess ethylenediamine (used extender) relation isocyanate valuable consideration...

10.3390/gels10030209 article EN cc-by Gels 2024-03-20
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