Irradiation-driven molecular dynamics simulation of the FEBID process for Pt(PF₃)₄

• Alexey Prosvetov,
• Alexey V. Verkhovtsev,
• Gennady Sushko and
• Andrey V. Solov’yov

Beilstein J. Nanotechnol. 2021, 12, 1151–1172, doi:10.3762/bjnano.12.86

TiO_x/Pt₃Ti(111) surface-directed formation of electronically responsive supramolecular assemblies of tungsten oxide clusters

• Marco Moors,
• Yun An,
• Agnieszka Kuc and
• Kirill Yu. Monakhov

Beilstein J. Nanotechnol. 2021, 12, 203–212, doi:10.3762/bjnano.12.16

• (600 s at p(O2) = 1.33 × 10−6 mbar) at a sample temperature of 1000 K led to the formation of the w’-TiOx phase. The W3O9 clusters were deposited at room temperature by thermal evaporation of WO3 powder with a purity of 99.9% (Sigma-Aldrich) at 840 °C, resulting in a cluster deposition rate of 0.002

The role of gold atom concentration in the formation of Cu–Au nanoparticles from the gas phase

• Yuri Ya. Gafner,
• Svetlana L. Gafner,
• Darya A. Ryzkova and
• Andrey V. Nomoev

Beilstein J. Nanotechnol. 2021, 12, 72–81, doi:10.3762/bjnano.12.6

• –Au clusters are formed with chemical compositions corresponding to the composition of the evaporated material [14]. In the case of cluster deposition onto amorphous carbon, various cluster morphologies were observed, such as cuboctahedral and decahedral. For clusters supported on a MgO substrate

Thermal control of the defunctionalization of supported Au₂₅(glutathione)₁₈ catalysts for benzyl alcohol oxidation

• Zahraa Shahin,
• Hyewon Ji,
• Rodica Chiriac,
• Nadine Essayem,
• Franck Rataboul and
• Aude Demessence

Beilstein J. Nanotechnol. 2019, 10, 228–237, doi:10.3762/bjnano.10.21

• °C for 4 hours. The final product Au25(SG)18 was filtered, isolated by precipitation with methanol and centrifuged (10000 rpm for 15 minutes), washed several times with methanol (5000 rpm, 15 minutes), and was air-dried. Synthesis of the composite material Au25(SG)18@ZrO2 Gold cluster deposition Au25

• (SG)18 cluster deposition was performed using a wet impregnation method. Gold clusters, with a mass of 10 mg corresponding to a theoretical loading of 1 wt % Au, and 500 mg of support (ZrO2) were dispersed in 5 mL of water, swirled, and left for 15 minutes. The prepared catalyst (A) was recovered by

Comparative study of antibacterial properties of polystyrene films with TiO_x and Cu nanoparticles fabricated using cluster beam technique

• Vladimir N. Popok,
• Cesarino M. Jeppesen,
• Peter Fojan,
• Anna Kuzminova,
• Jan Hanuš and
• Ondřej Kylián

Beilstein J. Nanotechnol. 2018, 9, 861–869, doi:10.3762/bjnano.9.80

• grown cultures on the same samples. Every sample is tested for up to 7 cycles. AFM images of (a) Cu clusters as-deposited on PS and (b) clusters after thermal annealing causing partial embedding of NPs. AFM images of sample type 2 (a) after Ti cluster deposition and annealing (120 °C for 5 min in

• of (a) cluster deposition for samples of type 1, (b) treatment with oxygen plasma for samples of type 2 and (c) in-flight oxidation of the clusters for samples of type 3. Schematic picture of setup for antibacterial experiments with TiOx NPs. Survival ratio of E.coli cells deposited on TiOx and Cu

Magnetic properties of iron cluster/chromium matrix nanocomposites

• Arne Fischer,
• Robert Kruk,
• Di Wang and
• Horst Hahn

Beilstein J. Nanotechnol. 2015, 6, 1158–1163, doi:10.3762/bjnano.6.117

• sensitive to the cluster size but not to the inter-cluster distances. Therefore, it was concluded to be an effect that is purely localized at the interfaces. Keywords: cluster; cluster deposition; exchange bias; matrix; Introduction Today’s metallic alloys are prepared by using complex thermo-mechanical

• a TEM grid covered with a thin amorphous carbon film while the whole sample thickness including top and bottom Cr layers was just 5 nm. Deposition parameters such as the cluster deposition rate and the sample temperature during deposition were identical with the ones used for the other samples. The

• deposition times similar for all samples it was possible to get reproducible and consistent results. In conclusion, by using a dedicated UHV cluster-deposition apparatus we fabricated in a highly controllable way series of samples with Fe clusters embedded in Cr matrices. Subsequently, the magnetic

Generation and agglomeration behaviour of size-selected sub-nm iron clusters as catalysts for the growth of carbon nanotubes

• Ravi Joshi,
• Benjamin Waldschmidt,
• Jörg Engstler,
• Rolf Schäfer and
• Jörg J. Schneider

Beilstein J. Nanotechnol. 2011, 2, 734–739, doi:10.3762/bjnano.2.80

• all of the formed oxide species that are accumulated. A 10 nm Al layer was deposited prior to cluster deposition on the SiOx grid. This thin Al barrier layer later ensures CNT growth [12]. Sintering of the iron catalyst during heating is minimized due to the low Tammann temperature of aluminium (194

• description of the CVD apparatus see the Experimental section). Cluster deposition followed by thermal annealing of size-selected clusters with a diameter of 0.6–0.9 nm and at a coverage of 3% of a monolayer on a [Al@SiOx] TEM grid up to temperatures of 600 °C did not lead to any detectable cluster

• the CNT growth process. Finally, it should be noted that we have also performed cluster-deposition experiments with larger (>1 nm) iron clusters, employing a cluster deposition density of up to a complete monolayer in terms of the substrate surface coverage. Similar agglomerated iron particles and

Structure, morphology, and magnetic properties of Fe nanoparticles deposited onto single-crystalline surfaces

• Armin Kleibert,
• Wolfgang Rosellen,
• Mathias Getzlaff and
• Joachim Bansmann

Beilstein J. Nanotechnol. 2011, 2, 47–56, doi:10.3762/bjnano.2.6

• Experiments on exposed mass-filtered Fe nanoparticles on (ferromagnetic) supports require in situ cluster deposition as well as surface sensitive analysis techniques performed under ultrahigh vacuum conditions. To motivate the need of our combined approach, we first introduce the arc cluster ion source (ACIS