A5082564567- Catalytic Processes in Materials Science
- Nanomaterials for catalytic reactions
- Electrocatalysts for Energy Conversion
- Gold and Silver Nanoparticles Synthesis and Applications
- Copper-based nanomaterials and applications
- Catalysis and Oxidation Reactions
- Electrochemical Analysis and Applications
- Nanocluster Synthesis and Applications
- Advanced Photocatalysis Techniques
- Electrochemical sensors and biosensors
- Catalysis and Hydrodesulfurization Studies
- nanoparticles nucleation surface interactions
- Quantum Dots Synthesis And Properties
- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Catalysts for Methane Reforming
- Advanced battery technologies research
- Mesoporous Materials and Catalysis
- Gas Sensing Nanomaterials and Sensors
- Advanced Memory and Neural Computing
- Plasmonic and Surface Plasmon Research
- Environmental remediation with nanomaterials
- Advanced Nanomaterials in Catalysis
- Conducting polymers and applications
- Fuel Cells and Related Materials
Pontifical Catholic University of Rio de Janeiro
2020-2025
The Wallace H. Coulter Department of Biomedical Engineering
2018-2021
Georgia Institute of Technology
2018-2021
Universidade de São Paulo
2014-2020
École Centrale de Lille
2020
Université de Lille
2020
Aware (United States)
2019
Universidade Federal de Ouro Preto
2013-2015
This review discusses the importance of physical/chemical control in metallic NPs for optimization and understanding catalytic performances.
Metallic nanoparticles have been extensively studied towards applications in catalysis. Among the several methods for their controlled synthesis, galvanic replacement is particularly attractive as it enables production of bimetallic and hollow nanomaterials displaying ultrathin walls a single reaction step. This procedure versatile, but final morphologies are often limited to shapes that represent analogues starting template nanocrystals. For catalytic applications, highly desirable broaden...
Abstract Nanorattles, comprised of a nanosphere inside nanoshell, were employed as the next generation plasmonic catalysts for oxidations promoted by activated O 2 . After investigating how presence nanoshell affected electric‐field enhancements in nanorattle relative to and nanosphere, SPR‐mediated oxidation p ‐aminothiophenol (PATP) functionalized at their surface was investigated benchmark these different intensities performances Au@AgAu nanorattles, AgAu nanoshells Au nanoparticles...
This review describes some principles of the controlled synthesis metal nanoparticles, focusing on how fundamental understanding their in solution-phase can be put to tailor size, shape, composition, and architecture. The maneuvering over these parameters not only enable tuning properties, but also maximization optimization performances for various applications. Herein, we start with a brief description metallic highlighting motivation achieving physicochemical control synthesis. After that,...
The design and development of efficient electrocatalytic sensitive nickel oxide nanomaterials have attracted attention as they are considered cost-effective, stable, abundant sensors. However, although innumerable electrocatalysts been reported, their large-scale production with the same activity sensitivity remains challenging. In this study, we report a simple protocol for gram-scale synthesis uniform NiO nanoflowers (approximately 1.75 g) via hydrothermal method highly selective detection...
Spinel ferrites are versatile, low-cost, and abundant metal oxides with remarkable electronic magnetic properties, which find several applications. Among them, they have been considered part of the next generation electrochemical energy storage materials due to their variable oxidation states, low environmental toxicity, possible synthesis through simple green chemical processing. However, most traditional procedures lead formation poorly controlled (in terms size, shape, composition, and/or...
The surface-plasmon-resonance (SPR)-mediated catalytic activities of Ag and Au nanoparticles have emerged a relatively new frontier in catalysis which visible light can be employed as an eco-friendly energy input to drive chemical reactions. Although this phenomenon has been reported for variety transformations, the effect nanoparticle shape crystalline structure on remains unclear. In paper, we investigated SPR-mediated activity quasi-spheres, cubes, triangular prisms, wires toward...
By a combination of theoretical and experimental design, we unraveled the effect {111} {100} surface facets on electrocatalytic sensing activities stabilities metal oxides by employing Cu2O crystals as model substrate glucose analyte. We started theoretically investigating potential energy curves for interaction with facets. found that was significantly higher than Then, experimentally observed their performance displayed shape-dependent behavior. While catalytic followed order cubes >...
We described a versatile approach for the synthesis of Au/MCM-41, Pd/MCM-41 and Au-Pd/MCM-41 by direct incorporation noble metals into MCM-41 framework. The structural, textural chemical properties were characterized X-ray diffraction (XRD), temperature-programmed reduction (TPR), N2-adsorption (BET BJH methods), H2-chemisorption, small angle scattering (SAXS), transmission electron microscope (TEM) photoelectron spectroscopy (XPS). nanomaterials, being comprised Au, Pd Au-Pd nanoparticles...
In this work, a simple but powerful method for controlling the size and surface morphology of AgAu nanodendrites is presented. Control number Ag nanoparticle seeds found to provide fast effective route by which manipulate nanoparticles produced via combined galvanic replacement reduction reaction. A lower leads larger with particles' outer diameter being tunable in range 45–148 nm. The was directly affect their catalytic activity. Specifically, we report on activity these catalyzing...
We described the facile synthesis of sub-15 nm CeO<sub>2</sub> nanowires for catalyzing selective nitrosobenzene from aniline at room temperature.
Hydrogen (H2) has emerged as a sustainable energy carrier capable of replacing/complementing the global carbon-based matrix. Although studies in this area have often focused on fundamental understanding catalytic processes and demonstration their activities towards different strategies, much effort is still needed to develop high-performance technologies advanced materials accomplish widespread utilization. The main goal review discuss recent contributions H2 production field by employing...