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Search for "chemical synthesis" in Full Text gives 74 result(s) in Beilstein Journal of Nanotechnology.
From lithium to sodium: cell chemistry of room temperature sodium–air and sodium–sulfur batteries
Beilstein J. Nanotechnol. 2015, 6, 1016–1055, doi:10.3762/bjnano.6.105
Magnetic properties of self-organized Co dimer nanolines on Si/Ag(110)
Beilstein J. Nanotechnol. 2015, 6, 777–784, doi:10.3762/bjnano.6.80
- result of a delicate balance between lateral interactions between molecules and molecule–substrate coupling. Considering the capability of chemical synthesis to create artificial molecules with a potentially large variety of functionalities, supramolecular [8][9][10][11] and covalent [12] assemblies with
Structural, optical, opto-thermal and thermal properties of ZnS–PVA nanofluids synthesized through a radiolytic approach
Beilstein J. Nanotechnol. 2015, 6, 529–536, doi:10.3762/bjnano.6.55
- be a good choice for preparing colloidal suspensions due to its significant advantageous such as processability and high transmittance [8]. Various physical and chemical routes have been used to synthesize these nanocomposites such as microwave irradiation [9], chemical synthesis [10], sputtering [11
Raman spectroscopy as a tool to investigate the structure and electronic properties of carbon-atom wires
Beilstein J. Nanotechnol. 2015, 6, 480–491, doi:10.3762/bjnano.6.49
- , containing up to nine cumulated C=C bonds were synthesized by a proper choice of the end-capping groups. They represent, to the best of the authors’ knowledge, the first long cumulenes obtained by rational chemical synthesis. Synthesis techniques and stabilization strategies Various physical and chemical
- even larger caps [65], impart stability to CAWs. Phenyl-terminated polyynes were produced by chemical synthesis with details given in [78]. Due to the termination type, these systems are stable at ambient conditions even when the solvent is completely removed and the sample is in the solid state, as
The distribution and degradation of radiolabeled superparamagnetic iron oxide nanoparticles and quantum dots in mice
Beilstein J. Nanotechnol. 2015, 6, 111–123, doi:10.3762/bjnano.6.11
- appropriate radionuclide into the core or an inner shell during chemical synthesis in order to guarantee the full stability of the label. Experimental Nanoparticle synthesis Monodisperse, oleic acid-stabilized SPIOs were synthesized according to Yu et al. [43]. Briefly, a mixture of 2 mmol FeOOH, 8.0 mmol
Chemoselective silicification of synthetic peptides and polyamines
Beilstein J. Nanotechnol. 2015, 6, 103–110, doi:10.3762/bjnano.6.10
- availability of relatively large amounts of pure material in reproducible quality is a benefit that links organic synthesis to material science. Different from silica-associated molecules of biological origin, which are characterized by structural and compositional microheterogeneity, the chemical synthesis of
Morphology, structural properties and reducibility of size-selected CeO2−x nanoparticle films
Beilstein J. Nanotechnol. 2015, 6, 60–67, doi:10.3762/bjnano.6.7
- chemical synthesis procedures. The concentration of Ce3+ ions was found to be quite different even for NPs with the same diameter, showing that the presence of Ce3+ ions is also related to the synthesis procedure and not only to the particle size. Few works have been performed with NPs synthetized by
Exploring plasmonic coupling in hole-cap arrays
Beilstein J. Nanotechnol. 2015, 6, 1–10, doi:10.3762/bjnano.6.1
- have been fabricated by both chemical synthesis, e.g., nanoshells [2], nanoeggs [3], nanorice [4] and lithography, e.g., nanodiscs [5], nanorings [6] to nanocaps [7] giving different degrees of ease of fabrication and control of shape, relative position and orientation of structures. Nanocaps have
Hybrid spin-crossover nanostructures
Beilstein J. Nanotechnol. 2014, 5, 2230–2239, doi:10.3762/bjnano.5.232
- probe lies in the fact that the speed and temperature range (where the spin transition takes place) can be tuned by well-known chemical synthesis methods and without necessarily modifying the luminescent agent. This can be translated into a flexible design when it comes to sensitivity and working range
Low cost, p-ZnO/n-Si, rectifying, nano heterojunction diode: Fabrication and electrical characterization
Beilstein J. Nanotechnol. 2014, 5, 2216–2221, doi:10.3762/bjnano.5.230
- using solution-processed, p-type, ZnO nanoparticles and an n-type Si substrate. p-type ZnO nanoparticles were synthesized using a chemical synthesis route and characterized by XRD and a Hall effect measurement system. The device was fabricated by forming thin film of synthesized p-ZnO nanoparticles on
Growth evolution and phase transition from chalcocite to digenite in nanocrystalline copper sulfide: Morphological, optical and electrical properties
Beilstein J. Nanotechnol. 2014, 5, 1542–1552, doi:10.3762/bjnano.5.166
- sulfide with 2 and 1.8 of Cu/S ratio were synthesized successfully from chemical synthesis in an organic solvent at 220–260 °C. Amorphous CuxS was also obtained from aqueous solution at low temperatures with a low electrical resistance, indicative of a high conductivity. The evolution growth, formation of
Current state of laser synthesis of metal and alloy nanoparticles as ligand-free reference materials for nano-toxicological assays
Beilstein J. Nanotechnol. 2014, 5, 1523–1541, doi:10.3762/bjnano.5.165
- concern. Unfortunately, appropriate nanoparticles required for systematic toxicological evaluation of these materials are still lacking. Here, the ubiquitous presence of surface ligands, remaining from chemical synthesis are a major drawback as these organic residues may cause cross-contaminations in
- and has not been extensively studied up to date [14]. However, up to now toxicological studies concerning unintended release scenarios by nanoparticles have been impaired by the absence of adequate testing materials. Nanoparticles obtained from chemical synthesis routes are predominantly fabricated in
Antimicrobial properties of CuO nanorods and multi-armed nanoparticles against B. anthracis vegetative cells and endospores
Beilstein J. Nanotechnol. 2014, 5, 789–800, doi:10.3762/bjnano.5.91
- synthesized at room temperature by a wet-chemical synthesis of precursor Cu(OH)2 nanorods followed by their thermal decomposition (Supporting Information File 1). CuO multi-armed nanoparticles were synthesized by an electrochemical route as described earlier [16]. Preparation of B. anthracis vegetative cells
Influence of particle size and fluorination ratio of CFx precursor compounds on the electrochemical performance of C–FeF2 nanocomposites for reversible lithium storage
Beilstein J. Nanotechnol. 2013, 4, 705–713, doi:10.3762/bjnano.4.80
- iron nanoparticles in the carbon matrix, their specific capacity was about 250 mAh/g, which is only one third of the theoretical value. To improve the capacity and to still benefit from a stabilizing and tightly attached carbon matrix, a new solid-state chemical synthesis, which is based on a reaction
Functionalization of vertically aligned carbon nanotubes
Beilstein J. Nanotechnol. 2013, 4, 129–152, doi:10.3762/bjnano.4.14
- , fluorinated non-aligned carbon nanotubes have been intensively investigated because of their potential applications [76]. Fluorination has been reported to impact on the morphology and on the physical and chemical properties of the CNTs, which can be used, for instance, as new precursors for chemical
- synthesis due to their better solubility and the creation of weaker C–F bonds [76]. Fluorinated CNTs are better electron acceptors, i.e., more prone to interact than pristine CNTs because both the Fermi energy level and conduction bands shift towards lower energy upon fluorination. Regarding VA-CNTs
Current–voltage characteristics of single-molecule diarylethene junctions measured with adjustable gold electrodes in solution
Beilstein J. Nanotechnol. 2012, 3, 798–808, doi:10.3762/bjnano.3.89
- suitable for applications. Results and Discussion We investigate charge transport through the species labeled TSC, 4Py and MN, shown in Figure 1c, contacted by adjustable Au electrodes (Figure 1a) in a MCBJ system operating at room temperature in a liquid environment [33][35][36]. The chemical synthesis
Surface functionalization of aluminosilicate nanotubes with organic molecules
Beilstein J. Nanotechnol. 2012, 3, 82–100, doi:10.3762/bjnano.3.10
- imogolites are observed in the initial stage of synthesis, and the average length of the nanotubes increases rapidly with reaction time [28]. Imogolite nanotubes through chemical synthesis and natural resource The synthesis of imogolite was first reported by Farmer et al. in 1977 [25]. As a typical
Extended X-ray absorption fine structure of bimetallic nanoparticles
Beilstein J. Nanotechnol. 2011, 2, 237–251, doi:10.3762/bjnano.2.28
- and other contaminations on the investigated structure, EXAFS of in situ cleaned and oxide-free FePt nanoparticles seems to be a suitable tool to study the intrinsic structural properties of pure metallic nanoparticles. Wet-chemical synthesis A possible organometallic route to synthesise FePt
Magnetic nanoparticles for biomedical NMR-based diagnostics
Beilstein J. Nanotechnol. 2010, 1, 142–154, doi:10.3762/bjnano.1.17
- tremendous potential in the field of biomedical applications, primarily on account of their similar size to biological molecules, and because their properties can be fine-tuned during chemical synthesis. In particular, MNPs can be synthesized in such a way as to possess unique superparamagnetic properties
Ultrafine metallic Fe nanoparticles: synthesis, structure and magnetism
Beilstein J. Nanotechnol. 2010, 1, 108–118, doi:10.3762/bjnano.1.13
- organometallic approach [17]. We have, for example, shown that cobalt NPs prepared by the decomposition of an organometallic precursor under mild conditions in the presence of a stabilising polymer exhibit physical properties similar to those of free cobalt clusters [18]. In this article, we report the chemical
- synthesis of well-isolated Fe NPs embedded in a polymer, with diameters of less than 2 nm. The structural and chemical properties have been investigated by transmission electron microscopy, wide angle X-ray scattering (WAXS), and X-ray absorption near-edge structure (XANES). Preliminary results of this work
Magnetic coupling mechanisms in particle/thin film composite systems
Beilstein J. Nanotechnol. 2010, 1, 101–107, doi:10.3762/bjnano.1.12
- the use of both chemical and physical growth methods. The composite material can be successfully prepared over areas larger than 100 mm2 and is obtained by combining chemical synthesis of the NPs, their mechanical self-assembly on top of a substrate, and ion-beam sputtering of a magnetic layer. All
Review and outlook: from single nanoparticles to self-assembled monolayers and granular GMR sensors
Beilstein J. Nanotechnol. 2010, 1, 75–93, doi:10.3762/bjnano.1.10
- mentioned in the preliminary section, bottom-up synthesis methods are well suited for these requirements. In addition, particle size distributions can be further refined via sedimentation or by magnetic separation subsequent to chemical synthesis [15]. 2.1 Driving forces to self-assemblies The organization
Aerosol assisted fabrication of two dimensional ZnO island arrays and honeycomb patterns with identical lattice structures
Beilstein J. Nanotechnol. 2010, 1, 71–74, doi:10.3762/bjnano.1.9
- honeycomb patterns consisting of ZnO nanocrystal clusters were fabricated on predefined TiO2 seed patterns prepared by vacuum free, aerosol assisted wet-chemical synthesis. The TiO2 seed patterns were prepared by applying an aerosol of a water soluble titanium complex on hexagonally close-packed polystyrene
Flash laser annealing for controlling size and shape of magnetic alloy nanoparticles
Beilstein J. Nanotechnol. 2010, 1, 55–59, doi:10.3762/bjnano.1.7
- applications depend on the ability to synthesize NPs with a very good control over the size distribution and the chemical composition. Up to now, only chemical synthesis is able to produce monodisperse CoPt [6] and FePt [7][8] NPs with a polydispersity (that is, standard deviation divided by the mean size) as
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