Synthesis, characterization, and investigation the electrochemical hydrogen storage of the synthesized CeO2 nanostructures by decomposition method

In this study, CeO2 nanoparticles were synthesized via decomposition method using Ce(SO4)2 salt as a cerium source. CeO2 nanoparticles were characterized via x-ray diffraction (XRD) pattern and scanning electron microscopy (SEM). The crystal structure of the CeO2 nanoparticles was studied by XRD pattern and the average size of crystallites calculated by Scherrer formula was around of 9 nm at 600 ͦ C. We studied the effect of CeO2 nanoparticles on hydrogen storage. The hydrogen storage capacity of CeO2 nanoparticles in 1mA current and 10 cycles obtained 1500 mAh/g.

Keywords:

Hydrogen storage , Nanoparticles , Thermal decomposition , CeO2