Figure 6. Transient hydrogen profiles obtained during five thermochemical cycles where water-splitting and regeneration steps were performed at 900°C and 1100°C, respectively using NiFe2O4 nanoparticles and NiFe2O4/ZrO2 powdered mixtures prepared at different sonication times

From

Sonication Derived Powdered Mixtures of Ferrite and Ceramic Nanoparticles for H2 Generation

Vinod S. Amar, Xavier M. Pasala, Jan A. Puszynski, Rajesh V. Shende

American Journal of Energy Research. 2015, 3(2), 25-31 doi:10.12691/ajer-3-2-2