The research of processes of formation of nickel catalyst as nanodendritic coverings on cermet surface was realized by means of computer simulations. Processes of arising, growing and reconstruction of nickel fractal nanodendrites was investigated, calculation of its physicochemical properties was also given. A new model of the multi-objective cellular automation for computer imitation of the self-organized aggregation of fractal nanodendrites was realized. The novelty of the model is that the particles participating in process of diffusion limited aggregation are joined together due to the directed contact connections of supramolecular bonds type that causes a process of self-organization of nonequilibrium multiparticles.
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http://dx.doi.org/10.1166/jnn.2009.c207 | DOI Listing |
Nanomaterials (Basel)
March 2023
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres 31, 98168 Messina, Italy.
Prosthetic joint replacement is the most widely used surgical approach to repair large bone defects, although it is often associated with prosthetic joint infection (PJI), caused by biofilm formation. To solve the PJI problem, various approaches have been proposed, including the coating of implantable devices with nanomaterials that exhibit antibacterial activity. Among these, silver nanoparticles (AgNPs) are the most used for biomedical applications, even though their use has been limited by their cytotoxicity.
View Article and Find Full Text PDFLangmuir
September 2020
Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078 Dijon, France.
Complex architectures like 3D gold dendritic nanostructures were synthesized by an templated growth method using a thin film of a block copolymer [polystyrene--poly(4-vinylpyridine)] deposited onto silicon substrates. The overall study has demonstrated the strong link between the morphology, size, and distribution of the structures and the synthetic physicochemical parameters, such as pH, reaction temperature, concentration, and nature of reactants. A nonequilibirum state of the medium has been required to create a fractal growth of the gold structures onto a prepatterned gold-seeded surface and has led to a better control of the structures' surface coverage rate.
View Article and Find Full Text PDFACS Appl Mater Interfaces
March 2020
CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.
The electrochemical conversion of carbon dioxide (CO) to fuels and chemicals is an opportunity for sustainable energy research that can realize both renewable energy storage and negative carbon cycle feedback. However, the selective generation of multicarbon products is challenging because of the competitive hydrogen evolution reaction (HER) and protonation of the reacting adsorbate. Copper-based materials have been the most commonly studied catalysts for CO electroreduction due to their ability to produce a substantial amount of C products.
View Article and Find Full Text PDFChem Commun (Camb)
September 2016
College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China.
Here, we for the first time synthesized bimetallic Cu/Ag dendrites on graphene paper (Cu/Ag@G) using a facile electrodeposition method to achieve efficient SERS enhancement. Cu/Ag@G combined the electromagnetic enhancement of Cu/Ag dendrites and the chemical enhancement of graphene. SERS was ascribed to the rough metal surface, the synergistic effect of copper and silver nanostructures and the charge transfer between graphene and the molecules.
View Article and Find Full Text PDFJ Nanosci Nanotechnol
February 2009
Department of Chemistry, Altai State University, Barnaul 656049, Russia.
The research of processes of formation of nickel catalyst as nanodendritic coverings on cermet surface was realized by means of computer simulations. Processes of arising, growing and reconstruction of nickel fractal nanodendrites was investigated, calculation of its physicochemical properties was also given. A new model of the multi-objective cellular automation for computer imitation of the self-organized aggregation of fractal nanodendrites was realized.
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