A5091095251- Electrochemical sensors and biosensors
- Hydrogen Storage and Materials
- Electrochemical Analysis and Applications
- Conducting polymers and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Hybrid Renewable Energy Systems
- Ammonia Synthesis and Nitrogen Reduction
- Superconductivity in MgB2 and Alloys
- Advanced Battery Materials and Technologies
- Supramolecular Chemistry and Complexes
- Magnetism in coordination complexes
- Analytical Chemistry and Sensors
- Supramolecular Self-Assembly in Materials
- Porphyrin and Phthalocyanine Chemistry
- Superconducting Materials and Applications
- Microbial Fuel Cells and Bioremediation
- Supercapacitor Materials and Fabrication
- Surface Chemistry and Catalysis
- Carbon Dioxide Capture Technologies
- Aerogels and thermal insulation
- Carbon dioxide utilization in catalysis
- Metal complexes synthesis and properties
- Organometallic Compounds Synthesis and Characterization
- Synthesis of Tetrazole Derivatives
Bariloche Atomic Centre
2017-2023
Consejo Nacional de Investigaciones Científicas y Técnicas
2018-2023
Balseiro Institute
2017-2019
Centro Científico Tecnológico - Patagonia Norte
2019
Comisión Nacional de Energía Atómica
2018
Centro Científico Tecnológico - Tucumán
2017-2018
Universidad Nacional de Cuyo
2017
Universidad Nacional de Córdoba
2012-2015
Université Joseph Fourier
2008-2011
Centre National de la Recherche Scientifique
2008-2011
The domain of soluble metallopolymers (i.e., polymers spontaneously obtained from the self-assembly metal ions and polytopic bridging ligands) is promising for construction novel materials with perspectives in magnetic, redox, optical, electrochromic, or mechanical properties. We report preparation characterization metallo-supramolecular gels based on a multitopic cyclam bis-terpyridine platform (CHTT) that are representative second generation molecular exhibiting "intelligent" systems were...
Soluble homo- and heterometallic coordination polymers containing transition metal cations (Cu(2+), Fe(2+), Co(2+), Ni(2+) ions) were prepared in a two-step procedure using polytopic bis(terpyridine)dioxocyclam ligand 1H(2) (dioxocyclam = 1,4,8,11-tetraazacyclotetradecane-5,7-dione). These supramolecular systems incorporate two different complexes, the being located both between terpyridine units macrocyclic framework. The characterization of these soluble architectures was investigated by...
We present the decoration of N-doped graphene entangled in mesoporous carbon by nickel and/or cobalt nanoparticles. The textural properties materials were characterized nitrogen desorption isotherms. presented metallic nanoparticles at least 20 nm and diffraction peaks typical cubic or nickel. Transmission microscopy revealed presence layers, organized mostly an onionlike fashion around nanoparticles, suggesting that these might promote formation extra sheets from surrounding amorphous...
A new, easy and versatile method for graphene inclusion within resorcinol–formaldehyde is presented applied to the nanoconfinement of LiBH<sub>4</sub>.
A polytopic cyclam−bis-terpyridine ligand has been used to accomplish an acid–base-triggered formation of either a mononuclear neutral complex or metallopolymers with Cu2+ ions. controlled interconversion between these two forms was achieved through the reversible displacement cation from macrocycle terpyridine units.
Abstract Summary: Soluble coordination polymers and gels built from a polytopic ligand containing two terpyridine units linked by azamacrocyclic group are presented. This system originally incorporates different types of metal complexes in the same polymer chain which induces remarkable electrochromic properties rare redox triggered reversible sol‐gel transition.
Abstract This work reports the analytical applications of a graphene paste electrode (GrPE) for quantification dopamine, ethanol and phenolic compounds. Dopamine was detected by differential pulse voltammetry‐adsorptive stripping with medium exchange at submicromolar levels even in presence high excess ascorbic acid serotonin. The electrocatalytic activity towards oxidation NADH reduction quinones allowed sensitive amperometric determination phenols using GrPE modified alcohol...
A carbon matrix with pores of distinct diameters was gradually filled LiBH4, and the corresponding nitrogen adsorption isotherms are presented. Four resins were prepared characterized individually; micropores mesopores defined sizes (6, 10, 15, 25 nm) observed. Then, four mixed to obtain a material composed populations comparable volumes (0.18 cm3 for 0.16 each mesopore, 0.82 in total). This mixture impregnated LiBH4 by melt impregnation at 30, 50, 70, 90 vol %, determine how fills matrix,...
Abstract We report a dopamine electrochemical sensor based on the modification of glassy carbon electrodes (GCE) with polylysine‐functionalized single‐wall nanotubes (SWCNT‐PLys). The resulting (GCE/SWCNT‐PLys) showed significant improvement in electrooxidation drastic decrease peak potentials separation and important enhancement associated currents. Dopamine was detected by differential pulse voltammetry‐adsorptive stripping medium exchange at nanomolar levels even presence high excess...
Abstract This work reports the synthesis of single‐wall carbon nanotubes (SWCNT) covalently functionalized with polylysine (Plys) and analytical performance glassy electrodes (GCE) modified this material (GCE/SWCNT‐Plys). The resulting showed an important decrease in overvoltages for oxidation ascorbic acid, uric acid hydrogen peroxide as well reduction peroxide. favorable interaction glucose oxidase (GOx) SWCNT‐Plys allowed sensitive selective biosensing at −0.100 V without any...
Incipient wetness impregnation was employed to decorate two N-doped graphene-rich matrixes with iron, nickel, cobalt, and copper nanoparticles. The matrix wetted methanol solutions of the corresponding nitrates. After agitation solvent evaporation, reduction at 800 °C over carbon promoted formation mass metal fraction limited 5 wt. % determine if quantities metallic nanoparticles catalyze hydrogen capture/release nanoconfined LiBH4. Isotherms nitrogen adsorption afforded textural...
In this work, we report a simple and scalable method to produce high efficiency 3D graphene-based electrodes (GH) for bioelectrochemical systems. GH were obtained by self-assembly of graphene oxide, through slow reduction with ascorbic acid over conductive mesh-works (carbon cloth stainless-steel). The structure composition characterised electron microscopy (SEM) spectroscopy (FTIR Raman), whereas the electrodes' performance was tested chronoamperometry cyclic voltammetry in microbial...
We present a comprehensive thermogravimetric analysis (TGA) of polyethylenimine (PEI)-impregnated resorcinol-formaldehyde (RF) aerogels. While numerous studies focus on PEI-impregnated SBA, RF materials have been less examined, despite their interest and specificities. As most articles porous follow typical experimental methods defined for particularities RF-PEI could remain unheeded. The design nonisothermal TGA protocols, completed with nitrogen isotherms, based the systematic filling...
Multi-walled carbon nanotubes (MWCNTs) dispersed in different polyelectrolytes were used to develop electrochemical (bio)sensors by drop-coating of glassy electrodes (GCEs).MWCNTs polyhistidine for the quantification uric acid or dopamine presence large excess ascorbic acid, and as platform build glucose biosensors self-assembling oxidase (GOx).The strong interaction calf thymus-double stranded DNA (dsDNA) with walls bamboo-MWCNTs allowed us obtain stable dispersions modified GCEsfor...