The best linear fit for the extinction at about 700 nm can be achieved by choosing the particle density B(2 5) of small particle aggregates with 2 5 particles per aggregate.
Single particles or small particle aggregates were irradiated at 980 nm (pulsed laser, 10 mW) in a raster scan motion to ensure complete irradiation of the entire particle/aggregate.
Calcination at 300 °C leads to reduction in BET surface area as the smaller particles aggregate to form large crystals in Co3O4 structure.
However, once aggregation has started smaller particles will aggregate faster due to their increased diffusion speed [58].
The as-received catalyst contained small Pt particles aggregated into clusters.
The bigger dispersed domains consist of smaller particles or aggregates of POSS molecules that exhibit some order but regions of matrix resin are interspersed.
We find that, for diagnostic purposes, a two-class arrangement of sizes (small particles and aggregates) is an adequate compromise between the accuracy of estimated fluxes and the level of resolution implemented for particle sizes.
Without the addition of dicyandiamide in the process, the as-prepared PC had a granule-like surface, where the small particles had aggregated because of heat treatment at a high temperature (Fig. 1a).
It was found that the PEDOT PSS colloidal particles stably dispersed in water at α ≥ 2.3, while small primary particles aggregated to form large secondary particles in water at α = 1.4 because the zeta potential dropped owing to the less PSS.
Some studies of CDs showed the existence of small particles as well as particle aggregates even if a dilute solution was used [27].
