Research on microstructure and catalysis effects on hydrogen storage alloy of nanosized three ions co-doped Ce1−3xCuxFexZnxO2

Summary Ce 1−3 x Cu x Fe x Zn x O 2 nano-particles were synthesized by hydrothermal method. The micro-structure, spectra features and catalysis effects on hydrogen storage alloy of Ce 1−3 x Cu x Fe x Zn x O 2 were studied. It was researched that the dopants were inserted into the lattice of CeO 2 and the solid solubility x was identified as 0.05. The oxygen vacancies contents and degree of lattice distortion were improved, and the band gap energies were decreased. The hydrogen absorption/desorption kinetics of Mg 60 La 10 Ni 20 -5 mol%Ce 1−3 x Cu x Fe x Zn x O 2 composites were evaluated. The results showed that the catalysts effects were improved by enhancing the doped concentrations. The catalysis mechanism was related with the microstructure and micro-electronic structure of the catalysts.