Synthesis and characterization of nickel-doped ceria nanoparticles with improved surface reducibility.

ABSTRACT: Nickel-doped ceria nanoparticles (Ni_0.1Ce_0.9O_2-x NPs) were fabricated from Schiff-base complexes and characterized by various microscopic and spectroscopic methods. Clear evidence is provided for incorporation of nickel ions in the ceria lattice in the form of Ni³⁺ species which is considered as the hole trapped state of Ni²⁺. The Ni_0.1Ce_0.9O_2-x NPs exhibit enhanced reducibility in H₂ as compared to conventional ceria-supported Ni particles, while in O₂ the dopant nickel cations are oxidized at higher valence than the supported ones.

SUBMITTER: Derafa W 

PROVIDER: S-EPMC9091644 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature