A5009717429- Fuel Cells and Related Materials
- Electrocatalysts for Energy Conversion
- Electrochemical Analysis and Applications
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Catalytic Processes in Materials Science
- Advanced battery technologies research
- Advancements in Battery Materials
- Graphene research and applications
- Catalysis for Biomass Conversion
- Advanced Battery Materials and Technologies
- Advancements in Solid Oxide Fuel Cells
- Nanomaterials for catalytic reactions
- Catalysts for Methane Reforming
- Advanced Battery Technologies Research
- Catalysis and Hydrodesulfurization Studies
- Electrospun Nanofibers in Biomedical Applications
- Mesoporous Materials and Catalysis
- Adsorption and biosorption for pollutant removal
- Membrane-based Ion Separation Techniques
- Catalysis and Oxidation Reactions
- Synthesis and Characterization of Pyrroles
- Crystallization and Solubility Studies
- Fiber-reinforced polymer composites
- Carbon Dioxide Capture Technologies
National Institute for Research and Development of Isotopic and Molecular Technologies
2016-2025
Research & Development Institute
2023
Institutul National de Cercetare Dezvoltare pentru Tehnologii Criogenice si Izotopice
2017
Gheorghe Asachi Technical University of Iași
2015
A comprehensive 3D, multiphase, and nonisothermal model for a proton exchange membrane fuel cell has been developed in this study. The used to investigate the effects of size parallel-type cathode flow channel on performance. flow-field plate, with numerically predicted best performing channel, built experimentally tested using an in-house test station. operating conditions relative humidity, pressure, temperature have also studied. results shown that performs better as decreases, is due...
Nitrogen-doped graphene is currently recognized as one of the most promising catalysts for oxygen reduction reaction (ORR). It has been demonstrated to act a metal-free electrode with good electrocatalytic activity and long-term operation stability, excellent ORR in proton exchange membrane fuel cells (PEMFCs). As consequence, intensive research dedicated investigation this catalyst through varying methodologies synthesis, characterization, technologies improvement. A simple, scalable,...
A facile and feasible protocol for synthesis of functionalized reduced graphene oxide decorated with gold nanoparticles (AuNP/rGO) in mild reaction conditions has been successfully developed. Starting from graphite, the following routes were developed: (1) preparation graphite oxide; (2) (GO) a compatible polymer; (3) (final compound). The surface morphology as-prepared AuNP/rGO was investigated using scanning electron microscopy (SEM) specific area determined BET method, while structural...
The need to reduce greenhouse gas emissions and guarantee a stable reliable energy supply has resulted in an increase the demand for sustainable storage solutions over last decade. Rechargeable batteries with solid-state electrolytes (SSE) have become focus area due their potential increased density, longer cycle life, safety conventional liquid electrolytic batteries. superionic sodium conductor (NASICON) Na3Zr2Si2PO12 gained lot of attention among ESS because its exceptional...
In the present work, we studied impact of excess Na addition on structure standard NASICON ion conductor along with transport mechanisms. this sense, ceramic membranes (NZSP) were prepared by a simple chemical synthesis method, solid state reaction (SSR), using an 5% (Na3.15Zr2Si2PO12) and 10% (Na3.3Zr2Si2PO12), in order to improve conduction properties membrane. The characterization NZSP nanoparticles was performed measuring particle size dynamic light scattering (DLS), morphology samples...
We prepared iodine-doped graphenes by several techniques (electrophilic substitution and nucleophilic methods) in order to incorporate iodine atoms onto the graphene base materials. The physical characterization of samples was performed using an array different techniques, such as scanning electron microscopy (SEM), transmission (TEM), X-ray photoelectron spectroscopy (XPS), electrochemical methods. A series cathodes I-doped were evaluated. Electrochemical performances with without indicated...
Doped graphene-based cathode catalysts are considered as promising competitors for ORR, but their power density has been low compared to Pt-based cathodes, mainly due poor mass-transport properties. A new electrocatalyst PEMFCs, an iodine doped grahene was prepared, characterized, and tested the results presented in this paper. We report a hybrid derived with increased electrochemical active area enhanced The performances of several configurations were typical Pt/C configuration. As...
This paper presents the preparation of platinum on a reduced graphene oxide matrix (PtrGO) using microwave-assisted method with three different pH solutions. The concentration determined by energy-dispersive X-ray analysis (EDX) was 4.32 (weight%), 2.16 (weight %) and 5.70 corresponding to 3.3, 11.7 7.2, respectively. Pt functionalization (rGO) decreased rGO specific surface, as shown Brunauer, Emmett Teller (BET) analysis. An XRD spectrum platinum-decorated showed presence associated phases...
The commonly used electrode Pt supported on a carbon (Pt/C) catalyst has demonstrated underperforming electrochemical durability in proton exchange membrane fuel cell (PEMFC) harsh operation conditions, especially terms of instability and corrosion. Gold nanoparticles (AuNPs) are considered one the best alternative catalysts PtNPs due to their remarkable selectivity for oxygen reduction reaction (ORR) stability strong acid attributes which ideal practical PEMFC applications. In this work, we...
This paper presents the preparation of heterogeneous catalysts for direct hydrogenation process CO2 to methanol. The development modern chemical industry is inextricably linked use catalytic processes. As a result, currently over 80% new technologies introduced in incorporate Since basic factor processes catalysts, studies deepening knowledge regarding nature action and systems, as well their improvement, represent research priority fundamental or applied nature. Cu/ZnO/Al2O3 catalyst...