A5048039418- Catalytic Processes in Materials Science
- Nanomaterials for catalytic reactions
- Catalysis and Oxidation Reactions
- Nanocluster Synthesis and Applications
- Mesoporous Materials and Catalysis
- Electrocatalysts for Energy Conversion
- Asymmetric Hydrogenation and Catalysis
- Metal-Organic Frameworks: Synthesis and Applications
- X-ray Diffraction in Crystallography
- Catalysis for Biomass Conversion
- Catalysis and Hydrodesulfurization Studies
- Covalent Organic Framework Applications
- Analytical Chemistry and Chromatography
- Crystallization and Solubility Studies
- Chemical Synthesis and Reactions
- Gold and Silver Nanoparticles Synthesis and Applications
- Iron oxide chemistry and applications
- Oxidative Organic Chemistry Reactions
- Catalytic Cross-Coupling Reactions
- Advanced NMR Techniques and Applications
- Electrochemical Analysis and Applications
- Fuel Cells and Related Materials
- Copper-based nanomaterials and applications
- Layered Double Hydroxides Synthesis and Applications
- Nanoporous metals and alloys
University of Padua
2015-2025
Institute of Molecular Science and Technologies
2003
In this paper, we report the synthesis and characterization of nanoparticles a Pt<sub>x</sub>Y alloy supported on commercial mesoporous carbon with high mass specific activity.
Resin molds for clusters: The nanoporous domains of a gel-type microporous functional resin are used as templates the production size-controlled Pd0 nanoclusters, size which is governed by largest mesh available (see picture). Inverse steric exclusion chromatography provides quantitative estimate nanoporosity in its swollen state. Supporting information this article on WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z52640_s.pdf or from author. Please note: publisher not responsible...
Abstract The commercial macroreticular cation exchanger resin Lewatit K2621/H + and two gel‐type resins bearing SO 3 H SMe functionalities are used to produce acidic Pd(0)/resin(H ) one non‐acidic Pd(0)‐Au(0)/resin catalysts that tested in the direct synthesis of 2 O methanol/water (2.5 : 1) at −10 °C moderate pressures. Molar yields after 1.5 hours, range from 12.9% [Pd(0)‐Au(0)/resin] 46% [Pd(0)/K2621/H ].
Cross-linked functional polymers (functional resins) are versatile, designable and useful supports for metal nanoclusters that able to provide reasonably thermally mechanically stable multi-functional catalysts characterized by good activity selectivity. The paper reviews authors’ contributions the field from early 1990s present.
A tailor‐made Pd 0 /K2621 catalyst was subjected to post synthesis modification via a wet treatment procedure. The aim the understanding of role promoters and how—if any—improvements could be qualitatively related performance for H 2 O direct synthesis. Catalyst Wet Pretreatment Method applied in different methanolic solutions containing , NaBr, 3 PO 4 either as single modifiers or mixture. characterized by Transmission Electron Microscopy X‐ray Photoelectron Spectroscopy. It concluded that...
A novel class of manganese(III) complexes bearing bis(NHC)-bis(phenolate) (O^C^C^O) type ligands was successfully synthesized. Three differently substituted imidazolium salts (with 2-hydroxyphenyl, (H4L1)Br2, 5‑tert‑butyl‑2-hydroxyphenyl, (H4L2)Br2, and 3,5-di‑tert‑butyl‑2-hydroxyphenyl, (H4L3)Br2, groups) were prepared as precursors the a convenient high-yield complexation reaction using acetate developed. Electrospray ionization mass spectrometry (ESI-MS) single-crystal X-ray diffraction...
Direct synthesis of H<sub>2</sub>O<sub>2</sub>: structure sensitivity in H<sub>2</sub>O<sub>2</sub>production and insensitivity the H<sub>2</sub>O production were proved with a Pd/K2621 catalyst.
Abstract For the first time a Pd catalyst for direct synthesis (DS) of H 2 O from and was investigated using in situ K‐edge X‐ray absorption fine structure spectroscopy. The loaded into continuous reaction cell fed at room temperature pressure with mixture CO , (86:10:4, v/v), methanol. PdO phases are observed similar steady proportions (62 28 %, respectively). same is found if either dry or treated pure methanol only. With 10 ppm NaBr both edge jump fraction decrease steadily during DS....
Abstract The direct synthesis of hydrogen peroxide has been for about 20 years a hot topic in “green” catalysis. Several methods, which are well established to measure the concentration water also applied analysis reaction mixtures from H 2 O . However, this step could not be always straightforward, because these contain almost invariably organic solvents and, sometimes, selectivity enhancers can interfere some, at least, most popular titrimetric methods. This work presents comparative...
The cross-linked polyurea support EnCat 30, its related macromolecular complex PdII/EnCat 30 and Pd0/EnCat 30NP nanocomposite are thoroughly investigated with SEM, TEM, ISEC ESR in the solid state (SEM TEM) swollen THF (ISEC ESR). obtained by microencapsulation of palladium acetate a framework, which is formed upon hydrolysis/condensation mixtures multi-functional oligo-arylisocyanates dichloroethane. Most remarkably, both turn out to be far more (nano)porous swellable materials than blank...
Several sulfonated cross-linked copolymers functionalized with hydroxyl and carboxylic groups have been synthesized. The amount of the cross-linking monomer was tailored (from 4% up to 40%) tune resulting micro- nano-morphologies, two types catalysts, namely, gel-type macroreticular were obtained. These employed in catalytic hydrolysis wheat straw pretreated 1-ethyl-3-methylimidazolium acetate obtain sugars. Remarkably, presence additional oxygenated enhances performances polymers by...