A. Navarro

ORCID: 0000-0003-0401-0380
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About
Contact & Profiles
Research Areas
  • Fuel Cells and Related Materials
  • Electrocatalysts for Energy Conversion
  • Conducting polymers and applications
  • Advanced battery technologies research
  • Hydrogen Storage and Materials
  • Orthopaedic implants and arthroplasty
  • Lubricants and Their Additives
  • Advanced Battery Materials and Technologies
  • Membrane-based Ion Separation Techniques
  • Hybrid Renewable Energy Systems
  • Polymer Nanocomposite Synthesis and Irradiation
  • Electrohydrodynamics and Fluid Dynamics
  • biodegradable polymer synthesis and properties

Universidad Politécnica de Cartagena
2021-2024

Instituto de Ciencia y Tecnología de Polímeros
2007-2009

The performance of an open cathode fuel cell was investigated as a function the type gas diffusion layer used in its membrane electrode assemble (MEA) preparation. In this context, new developed our laboratory called eCoCell studied, comparison with reputed commercial one Sigracet 38BC. Thus, characterization both layers carried out through measurement following properties: porosity, electrical conductivity, thermal conductivity and hydrophobicity. Finally, single proton exchange using...

10.1016/j.ijhydene.2021.12.151 article EN cc-by-nc-nd International Journal of Hydrogen Energy 2022-01-01

Abstract The gas diffusion layer (GDL) is one of the most important parts a proton exchange membrane fuel cell, that plays key role transporting current to collector plates, distributing reactant gases catalyst surface, and evacuating heat water generated during redox reactions inside cell. Speaking in terms production cost, GDL represents up 45% total cost electrode assembling (MEA). However, despite its crucial until recent years, GDLs have not been studied with same intensity as other MEA...

10.1038/s41598-022-08124-0 article EN cc-by Scientific Reports 2022-03-10

Hydrogen production through electrolysis using renewable resources is highly promising for reducing greenhouse gas emissions. While significant efforts have focused on developing more efficient and cost-effective catalysts to lower hydrogen costs, are not the primary expense in electrolyzer fabrication. In case of Proton Exchange Membrane Water Electrolyzers (PEMWEs), other components—such as proton membrane, diffusion layer (GDL), bipolar plates—contribute overall costs. To explore this, a...

10.3390/en17215298 article EN cc-by Energies 2024-10-25

Fabrication of electrodes for polymer electrolyte fuel cells is a intriguing process in which balance between gas transport, electrical conductivity, proton transport and water managing must be optimized. In this work four different prepared by electrospray deposition have been studied using catalytic inks, Nafion epoxy doped with Graphene-Nanoplatelets were used as binders. After studying the behavior those single open cathode cell membrane, it clear that addition binder graphene, improves...

10.1016/j.ijhydene.2022.02.146 article EN cc-by International Journal of Hydrogen Energy 2022-03-10

Abstract In this research a series of pore‐filling electrolyte membranes were prepared, based on sulfonated and hydrogenated styrene/butadiene block copolymer (SHSBS) plasma‐treated microporous polyethylene (PE) membranes. The characterized by means scanning electronic microscopy (SEM), infrared spectroscopy (FTIR‐ATR), dynamic mechanical analysis (DMA). addition, the water uptake methanol/water capacities these determined using several methanol in solutions, as well permeability...

10.1002/polb.21505 article EN Journal of Polymer Science Part B Polymer Physics 2008-07-16

Abstract The gas diffusion layer (GDL) plays an important role in a proton exchange membrane fuel cell (PEMFC) transporting the current to collector plates, distributing reactant gases catalyst surface, and evacuating heat water that is generated during redox reactions. Speaking terms of production cost, GDL represents between 30% 50% total cost electrode assembling (MEA). However, despite its importance cells, until recent years, GDLs have not been studied with same intensity than other MEA...

10.21203/rs.3.rs-1007793/v1 preprint EN cc-by Research Square (Research Square) 2021-10-25

Two samples of commercially-available styrene-butadiene block copolymers (SBC) were tested for suitability use in biomedical applications. A 30% sample and a 40% styrene-containing polymers with very similar molecular weights (approximately 300,000) characterized before after being placed physiological serum period six months. SEM, FTIR, atomic absorption spectroscopy used to characterize the polymers. Scanning transmission electron micrographs showed that SBC's morphology was clearly...

10.1177/088391159501000305 article EN Journal of Bioactive and Compatible Polymers 1995-07-01
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