(48e) Immobilized Ferrite Nanoparticles for H2 Generation Via Low Temperature Thermochemical Water-Splitting Process

Authors: 
Amar, V. S., South Dakota School of Mines and Technology
Shende, R. V., South Dakota School of Mines and Technology
Puszynski, J. A., South Dakota School of Mines and Technology
H2 in its cleaner form can be efficiently produced from the thermochemical water-splitting process. As the process is typically performed at higher temperatures of 900o-1600oC, significant energy input is needed for continuous H2 production during multiple thermochemical cycles. At higher temperatures though grain growth and spalling of redox materials in thermal reactors often lead to decrease in the H2 volume during multiple thermochemical cycles. In order to reduce the grain growth and achieve thermal stabilization, we attempted to synthesize novel immobilized ferrite nanoparticles using the sol-gel technique. In particular, highly porous ceramic supports were utilized to immobilize the ferrite nanoparticles. The morphologies of these immobilized materials were investigated by the scanning electron microscopy and X-ray diffraction. A number of ferrite nanoparticles were immobilized and their H2 generation ability was compared at lower temperatures of 600o-900C. Synthesis of immobilized ferrite nanoparticles, characterization and H2 volume generation results will be presented.