A5041734977- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Electrochemical Analysis and Applications
- Electrochemical sensors and biosensors
- Electrocatalysts for Energy Conversion
- Porphyrin Metabolism and Disorders
- Metal-Catalyzed Oxygenation Mechanisms
- Advanced battery technologies research
- Metal complexes synthesis and properties
- Crystallography and molecular interactions
- Analytical Chemistry and Sensors
- Photosynthetic Processes and Mechanisms
- Folate and B Vitamins Research
- Conducting polymers and applications
- Fuel Cells and Related Materials
- Porphyrin and Phthalocyanine Chemistry
- Ammonia Synthesis and Nitrogen Reduction
- Magnetic and transport properties of perovskites and related materials
- Electronic and Structural Properties of Oxides
- Magnetism in coordination complexes
- CO2 Reduction Techniques and Catalysts
- Advancements in Solid Oxide Fuel Cells
- Synthesis and Biological Evaluation
- Spectroscopy and Quantum Chemical Studies
- Advanced biosensing and bioanalysis techniques
University of Trieste
2011-2020
National Interuniversity Consortium of Materials Science and Technology
2006-2020
University of Cagliari
2009
University of Modena and Reggio Emilia
2003
Recently LaNi1–xFexO3 materials have been indicated as good candidates for cathodes intermediate temperature solid oxide fuel cells (IT-SOFCs), and LaNi0.6Fe0.4O3 (LNF) showed the highest specific conductivity in series. Here we report results of our investigation on performances LNF, synthesized by coprecipitation method. A detailed local structure analysis, performed using X-ray absorption near edge spectroscopy (XANES ) extended fine (EXAFS) techniques, that both Fe Ni are (III) oxidation...
Direct conversion of carbon dioxide to formic acid at thermodynamic equilibrium is an advantage enzymatic catalysis, hardly replicated by synthetic analogs, but high priority for carbon-neutral energy schemes. The bio-mimetic potential totally inorganic Pd@TiO2 nanoparticles envisioned herein in combination with Single Walled Carbon NanoHorns (SWCNHs). surface nano-carbon entanglement templates a wide distribution "hard-soft" bimetallic sites where the small Pd (1.5 nm) are shielded within...
Abstract Electrocatalytic oxygen reduction (ORR) is an emerging synthetic strategy to prepare H 2 O in a sustainable fashion. N‐doped graphitic carbon with embedded cobalt nanoparticles was selected as advanced material able selectively trigger the ORR form faradaic efficiency of almost 100 % at very positive applied potentials. The production proceeded high rates calculated by bulk electrolysis (49 mmol g −1 h ) and excellent current densities (≈−0.8 mA cm −2 0.5 V vs. reversible hydrogen...
A series of La1−xSrxNi0.6Fe0.4O3 mixed oxides were synthesized by a coprecipitation method, followed calcination at 1000 °C. Materials with x < 0.100 exhibited rhombohedral structure similar to that observed for La0.4Ni0.6Fe0.4O3, whereas materials between 0.125 and 0.150 orthorhombic. The unit-cell volume decreased linearly from = 0 0.090, but increased increasing Sr2+ content. still higher Sr content (x 0.200 0.300) additional XRD reflections indicating the limit solubility into...
Substitution of the acetylacetonate ligands in [MO2(acac)2] (M = Mo or W; acac acetylacetonate) by 2-oxy-1-naphthaldehyde izonicotinoyl hydrazonate (NIH2−) 3-methoxy-2-oxybenzaldehyde (VIH2−) gives rise to either zigzag chain polymers, [MO2(NIH)]n (1 and 2), square complexes [MO2(VIH)]4 (3 4), mononuclear [MO2(VIH)(C2H5OH)] (5 6), polyoxomolybdate hybrid compounds [{MoO2(HNIH)}2Mo6O19] (7) [MoO2(HVIH)(H2O)]2Mo6O19 (8), depending on reaction conditions. In all these compounds, ligand is...
We report a new synthetic approach for the preparation of small FeOx nanoparticles, formed on surface hollow N,O-doped carbon nanoshells through an "inside-out" mechanism. By control pyrolysis conditions, iron species can ex-solve from inside onto external surface, where they form stable nanoparticles. The location (endo- or exohedral) is correlated with observed switch product selectivity (from H2O2 to H2O) in electrocatalytic oxygen reduction reaction.
Thermodynamic parameters of complex formation between d10 metal ions, such as Zn2+, Cd2+, Hg2+ and Ag+, the macrocyclic thioether 1,4,7-trithiacyclononane ([9]AneS3) or monodentate diethylsulfide (Et2S), in acetonitrile (AN) at 298.15 K, were studied by a systematic methodology including potentiometry, calorimetry polarography. [9]AneS3 is able to form complexes with all target cations, Et2S only reacts Ag+. Mononuclear MLj (j = 1, 2) are formed ions investigated, where affinity order > Ag+...
Abstract The development of new electrocatalysts for the oxygen reduction reaction (ORR) and hydrogen evolution (HER) at physiological pH is critical several fields, including fuel cells biological applications. Herein, assembly an electrode based on carboxyl‐functionalised hydrophilic multiwalled carbon nanotubes (MWCNTs) filled with Fe phases their excellent performance as ORR HER are reported. encapsulated dramatically enhances catalytic activity, graphitic shells play a double role...
Abstract Carbon nanotube (CNT)–modified surfaces unequivocally demonstrate their biocompatibility and ability to boost the electrical activity of neuronal cells cultured on them. Reasons for this effect are still under debate. However, intimate contact at membrane level between these thready nanostructures cells, in combination with unique properties, seems play an important role. The entire existing literature exploiting CNTs modulating cellular behavior deals cell cultures grown purified...
Abstract In four series of strictly related organocobalt complexes, derived from cobaloximes by replacement the O…H…O with O…‐BF 2 …O and/or (CH ) 3 groups, trends 59 Co‐NMR shielding and electrochemical data are discussed. A largely parallel behaviour plots E 1/2 (I) values for first Co(III)/Co(II) electron transfer vs. Co chemical shifts reflects similar sensitivity two parameters to a change in affinity central metal ion due variation organic group R. (II) second Co(II)/CO(I) less...
Abstract The Haber‐Bosch process for NH 3 production leads to a considerable greenhouse gas release due the remarkable use of fossil fuels. Therefore, there is an increasing interest in developing alternative and environmental friendly approaches. Among possible solutions, electrocatalytic conversion N 2 has recently gained significant attention; on other hand, not only scientific but also important technical aspects remain fundamental issues be clarified. Particularly relevant need improve...
The widespread industrial use of H2O2 has provoked great interest in the development new and more efficient materials for its detection. Enzymatic electrochemical sensors have drawn particular attention, primarily because their excellent selectivity. However, high cost, instability, complex immobilization, inherent tendency toward denaturation enzyme significantly limit practical usefulness. Inspired by powerful proton-catalyzed reduction mechanism peroxidases, we developed a well-defined...
Abstract Bis(methylphenylglyoximate)cobalt( III ) complexes exist both as cis and trans isomers due to the asymmetry of equatorial ligand, and, when axial ligands are different, isomer is chiral. The reaction racemic ‐[CH 3 Co(mpgH) 2 py] ( 1 with either 3‐ or 4‐pyridylboronic acid affords dimeric units arranged on a crystallographic symmetry center such that pyridyl nitrogen one moiety coordinates Co atom symmetry‐related unit. In principle, three structurally different species (two...