Dry reforming of methane over nickel supported on Nd-ceria: enhancement of the catalytic properties and coke resistance.

ABSTRACT: Nickel (5 wt%) supported on Nd-doped ceria was studied as catalysts in the DRM reaction at stoichiometric conditions in the range of 600-800 °C. Ce_1-x Nd _x O_2-δ supports with different Nd contents (x = 0, 0.05, 0.1 and 0.2) were successfully synthesized. The role of oxygen vacancies by the incorporation of Nd³⁺ into the ceria lattice was investigated. These species were quantified by XRD and Raman spectroscopy, showing a linear dependence as a function of Nd content. Ni/Nd-ceria catalysts were prepared by wet impregnation. Although formation of oxygen vacancies, as well as microstructural features of the support (smaller crystallite sizes, higher surface area, and developed mesoporous structure) were improved as a func

SUBMITTER: Lara-Garcia HA 

PROVIDER: S-EPMC9056702 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature