Mass-mobility characterization of flame-made ZrO2 aerosols: Primary particle diameter and extent of aggregation

► Generation of ZrO2 nanoparticles by scalable spray combustion. ► Rapid characterization by mass-mobility measurements with APM-DMA. ► Online determination of primary particle diameter and number in agglomerates. ► Good agreement with ex situ BET measurements and TEM image counting. ► Mass-mobility measurements reveal the degree of aggregation.