Abstract
Carbon–iron oxide microspheres’ black pigments (CIOMBs) had been prepared via ultrasonic spray pyrolysis of aqueous solutions containing ferrous chloride and glucose. Due to the presence of carbon, CIOMBs not only exhibited remarkably acid resistance, but also could be well dispersed in both polar solvents and nonpolar solvent. Finally, dispersions of hollow CIOMBs in tetrachloroethylene had successfully been applied in electrophoretic displays.
Highlights
Electrophoretic displays (EPDs) have been the subject of intense research and development for a number of years [1–5]
The density of the Carbon–iron oxide microspheres’ black pigments (CIOMBs) can be tuned in the range of 1.5–2.2 g/cm3 by acid etching, which resolved the problem of mismatched density between carbon-based black pigment and electrophoretic medium
The aerosol droplets are carried in nitrogen stream through a quartz-glass tube in a hot furnace, and water evaporation and precursor decomposition occur, generating CIOMBs
Summary
Electrophoretic displays (EPDs) have been the subject of intense research and development for a number of years [1–5]. Abstract Carbon–iron oxide microspheres’ black pigments (CIOMBs) had been prepared via ultrasonic spray pyrolysis of aqueous solutions containing ferrous chloride and glucose. Dispersions of hollow CIOMBs in tetrachloroethylene had successfully been applied in electrophoretic displays.
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