@article{ajer2015322,
author={{Amar, Vinod S. and Pasala, Xavier M. and Puszynski, Jan A. and Shende, Rajesh V.},
title={Sonication Derived Powdered Mixtures of Ferrite and Ceramic Nanoparticles for H<SUB>2</SUB> Generation},
journal={American Journal of Energy Research},
volume={3},
number={2},
pages={25--31},
year={2015},
url={http://pubs.sciepub.com/ajer/3/2/2},
issn={2328-7330},
abstract={This paper reports sonication derived powdered mixtures of NiFe<SUB>2</SUB>O<SUB>4</SUB> and ceramic nanoparticles such as ZrO<SUB>2</SUB>/Y<SUB>2</SUB>O<SUB>3</SUB>/YSZ for H<SUB>2</SUB> generation from thermochemical water-splitting process. To prepare powdered mixtures, NiFe<SUB>2</SUB>O<SUB>4</SUB> (75 wt%) and ceramic nanoparticles (25 wt%) were placed in ethanol, sonicated for 120 min, and the slurry obtained was dried at 50¡ã-100¡ãC. Using these powdered mixtures, ten consecutive thermochemical cycles were performed at 900¡ã-1100¡ãC for H<SUB>2</SUB> generation. Among different powdered mixtures, NiFe<SUB>2</SUB>O<SUB>4</SUB>/ZrO<SUB>2</SUB> produced a maximum H<SUB>2 </SUB>of 30.6 mL/g/cycle at NTP conditions. Powdered mixtures prepared with different sonication times (30-120 min) and ZrO<SUB>2 </SUB>nanoparticles loadings (10-35 wt%) were also investigated for H<SUB>2</SUB> generation <i>via </i>thermochemical water-splitting process. Sonication derived NiFe<SUB>2</SUB>O<SUB>4</SUB>/ZrO<SUB>2</SUB> powdered mixture prepared at optimized conditions has produced average H<SUB>2</SUB> volume of 38.8 mL/g/cycle during five consecutive thermochemical cycles, which was found to be higher than the H<SUB>2</SUB> volume generated by NiFe<SUB>2</SUB>O<SUB>4</SUB>/Y<SUB>2</SUB>O<SUB>3</SUB> and NiFe<SUB>2</SUB>O<SUB>4</SUB>/YSZ powdered mixtures. In addition, these powdered mixtures were characterized for powdered x-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) specific surface area, and scanning and transmission electron microscopy (SEM and TEM).},
doi={10.12691/ajer-3-2-2}
publisher={Science and Education Publishing}
}