Gd-Bi-M-Ce-O (M= Cu, Zr, Ni, Co, Mn) ceria-based solid solutions for low temperature CO oxidationстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 8 апреля 2021 г.
Аннотация:Ceria based solid solutions doped by Gd, Bi, and the third dopant were synthesized by the co-precipitationmethod with ultrasonic treatment, followed by calcination at the temperature of 500◦С. Characterization ofthe synthesized nanosystems by XRD, TEM, TG, Raman spectroscopy, FTIR, XPS was carried out. It is shown thatall obtained powders of solid solutions crystallized into a cubic structure of the fluorite type, with an averageparticle size of 5–15 nm. The samples had a mesoporous structure of the pore diameter of 2–5 nm. The catalyticactivity of Gd-Bi-M-Ce-O (M = Cu, Zr, Ni, Co, Mn) solid solutions was carried out. The catalystGd0.05Bi0.15Mn0.20Ce0.60O2 has the lowest oxidation temperature.