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Search for "nickel nanoparticles" in Full Text gives 8 result(s) in Beilstein Journal of Nanotechnology.
Control of morphology and crystallinity of CNTs in flame synthesis with one-dimensional reaction zone
Beilstein J. Nanotechnol. 2023, 14, 741–750, doi:10.3762/bjnano.14.61
- improved flame synthesis systems in the future. Experimental Catalyst preparation In the context of surface breakup catalysis, nickel wire is utilized as a catalyst through the formation of nickel nanoparticles. The method for preparing the nickel wire has been previously documented in [13]. The process
Nickel nanoparticle-decorated reduced graphene oxide/WO3 nanocomposite – a promising candidate for gas sensing
Beilstein J. Nanotechnol. 2021, 12, 343–353, doi:10.3762/bjnano.12.28
- /WO3 composite and CO gas, a response time (Tres) of 7 min and a recovery time (Trec) of 2 min was determined. Keywords: gas sensing; magnetic measurements; nickel nanoparticles; reduced graphene oxide; tungsten oxide; Introduction Toxic gases as well as volatile organic compounds (VOC) are known air
- the gas response were measured for 3500 ppm and 35,000 ppm acetone. Results and Discussion Ni@rGO synthesis The synthesis of nickel nanoparticles is well known and different methods such as thermal decomposition [44] or reductive hydrogenation [45] are used. Nickel nanoparticles with sizes below 10 nm
- decomposition approach with rGO synthesized from reduced graphite oxide at 400 °C. It is extremely important that the used rGO is thoroughly dried because of the oxyphilic nature of nickel nanoparticles. Therefore, before the nanoparticle synthesis, the rGO was dried using a turbo molecular pump at 5 × 10−7
Nickel nanoparticles supported on a covalent triazine framework as electrocatalyst for oxygen evolution reaction and oxygen reduction reactions
Beilstein J. Nanotechnol. 2020, 11, 770–781, doi:10.3762/bjnano.11.62
- little investigated, albeit they are promising candidates for electrocatalysis, especially for the oxygen evolution reaction (OER). In this work, nickel nanoparticles (from Ni(COD)2) were supported on CTF-1 materials, which were synthesized from 1,4-dicyanobenzene at 400 °C and 600 °C by the ionothermal
- ). Additionally, after accelerated durability tests of 2000 cycles, the material showed only a slight decrease in activity towards both OER and ORR, demonstrating its superior stability. Keywords: covalent triazine framework (CTF); electrocatalysis; nickel nanoparticles; oxygen evolution reaction; oxygen
- layers (25.2 wt %), Ni encapsulated within single-layer graphene (32.8 wt %), but higher than that of nickel nanoparticles encapsulated in N-doped carbon nanotubes (14.5 wt %), and much lower than those of with N-doped carbon shells coated face-centered cubic (fcc) or hexagonal closed packed (hcp) nickel
Investigation of growth dynamics of carbon nanotubes
Beilstein J. Nanotechnol. 2017, 8, 826–856, doi:10.3762/bjnano.8.85
- of carbon nanofibers on nickel nanoparticles and suggested the growth mechanism involving the surface diffusion. They observed the movement of atoms on the surface of the crystalline nickel cluster and change of its shape during the growth process. It was concluded that the surface transport of
Self-assembly mechanism of Ni nanowires prepared with an external magnetic field
Beilstein J. Nanotechnol. 2015, 6, 2123–2128, doi:10.3762/bjnano.6.217
- , nickel nanowires cannot be formed if the diameter of the nickel nanoparticles does not reach a critical size. Experimental All chemicals were of analytical grade without further purification. All reaction solutions were located between two parallel neodymium magnets (60 × 30 mm2) separated 150 mm apart
- comprised of connected, single nickel nanoparticles. It is worth noting that the self-assembly phenomenon arises only when nickel particles have grown to a critical size of about 60 nm in the reaction system. Interestingly, the particle diameters in Figure 3a (about 60–125 nm) and Figure 3b (about 70–95 nm
The Kirkendall effect and nanoscience: hollow nanospheres and nanotubes
Beilstein J. Nanotechnol. 2015, 6, 1348–1361, doi:10.3762/bjnano.6.139
- formation of a hollow Cu2O nanoparticle with a uniform shell thickness. The asymmetrical conversion mechanism identified when oxidizing spherical nickel nanoparticles was recently encountered by Railsback et al. who have shown that such an effect becomes more or less pronounced according to the size of the
- the wire and reach the opposite side before agglomerating with another vacancy (Figure 12d). This results in the formation of segmented-like nanotubes with a NiO shell and periodic nickel nanoparticles. As the oxidation process progress in time, the nickel atoms forming the nanoparticles undergo two
Interaction of dermatologically relevant nanoparticles with skin cells and skin
Beilstein J. Nanotechnol. 2014, 5, 2363–2373, doi:10.3762/bjnano.5.245
- DNA damage and apoptosis were detected in human skin epidermal cells after exposure to nickel nanoparticles [42]. Phototoxicity of zinc oxide nanoparticles induced the generation of oxidative DNA damage during UVA and visible light irradiation in keratinocytes [43]. Oxidative stress and skin cell
Plasma-assisted synthesis and high-resolution characterization of anisotropic elemental and bimetallic core–shell magnetic nanoparticles
Beilstein J. Nanotechnol. 2014, 5, 466–475, doi:10.3762/bjnano.5.54
- , which relies on (optionally pulsed) DC plasma gas condensation has been developed. We demonstrate the synthesis of elemental nickel nanoparticles with highly tunable sizes and shapes and Ni@Cu CS-NPs with an average shell thickness of 10 nm as determined with scanning electron microscopy, high
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