The effect of synthesis conditions (type of cations, annealing temperature, reductive or oxidative atmosphere) on the chemical composition and structure of compounds formed in the MO2-CeO2/Ce2O3 systems (M = Zr, Hf) was studied by X-ray diffraction, X-ray absorption spectroscopy, Raman spectroscopy, and thermogravimetric analysis. The isothermal annealing of the precursors at temperatures below 1000°C in air gives Ce0.5M0.5O2 powders with fluorite type cubic structure (space group Fm3m). High-temperature annealing above 1000°C gives rise to additional tetragonal (space group P42/nmc) (for zirconates) or monoclinic (space group P21/a) (for hafnates) phases. The annealing in a hydrogen atmosphere affords the compounds Ce4+ 2xCe3+ 2−2xM2O7 + x...
The oxygen storage capacity of CexZr1-xO2-y compounds arises from the mixed-valent character of ceri...
CeO2 and Ce1-xMxO2-δ (M=Zr, Ti, Pr, Y and Fe) nanocrystallites of 5-10 nm sizes have been synth...
CeO2 and Ce1-xMxO2-delta (M = Zr, Ti, Pr, Y and Fe) nanocrystallites of 5-10 nm sizes have been synt...
Influence of synthesis conditions (type of atmosphere, reduction and oxidation, annealing temperatur...
Influence of synthesis conditions (type of atmosphere, reduction and oxidation, annealing temperatur...
Influence of synthesis conditions (type of atmosphere: reduction or oxidation, annealing temperature...
Influence of synthesis conditions (type of atmosphere: reduction or oxidation, annealing temperature...
Fluorite-type Ce0.5Zr0.5O2 and Ce0.5Hf0.5O2 have been synthesized by a solution combustion route, an...
Fluorite-type Ce0.5Zr0.5O2 and Ce0.5Hf0.5O2 have been synthesized by a solution combustion route, an...
Cerium monoaluminate Ce1-x 3+ Cex 4+ AlO3+x/2 powders with low contents of Ce4+ cations (x ∼ 0.052) ...
Cerium monoaluminate Ce1-x 3+ Cex 4+ AlO3+x/2 powders with low contents of Ce4+ cations (x ∼ 0.052) ...
In this paper, we report the structural and compostional variation of Ce2Zr2O7 pyrochlore under a co...
The preparation of MOFs including a metal with an easily exchangeable oxidation state, while maintai...
The preparation of MOFs including a metal with an easily exchangeable oxidation state, while maintai...
The oxygen storage capacity of CexZr1‐xO2‐y compounds arises from the mixed‐valent character of ceri...
The oxygen storage capacity of CexZr1-xO2-y compounds arises from the mixed-valent character of ceri...
CeO2 and Ce1-xMxO2-δ (M=Zr, Ti, Pr, Y and Fe) nanocrystallites of 5-10 nm sizes have been synth...
CeO2 and Ce1-xMxO2-delta (M = Zr, Ti, Pr, Y and Fe) nanocrystallites of 5-10 nm sizes have been synt...
Influence of synthesis conditions (type of atmosphere, reduction and oxidation, annealing temperatur...
Influence of synthesis conditions (type of atmosphere, reduction and oxidation, annealing temperatur...
Influence of synthesis conditions (type of atmosphere: reduction or oxidation, annealing temperature...
Influence of synthesis conditions (type of atmosphere: reduction or oxidation, annealing temperature...
Fluorite-type Ce0.5Zr0.5O2 and Ce0.5Hf0.5O2 have been synthesized by a solution combustion route, an...
Fluorite-type Ce0.5Zr0.5O2 and Ce0.5Hf0.5O2 have been synthesized by a solution combustion route, an...
Cerium monoaluminate Ce1-x 3+ Cex 4+ AlO3+x/2 powders with low contents of Ce4+ cations (x ∼ 0.052) ...
Cerium monoaluminate Ce1-x 3+ Cex 4+ AlO3+x/2 powders with low contents of Ce4+ cations (x ∼ 0.052) ...
In this paper, we report the structural and compostional variation of Ce2Zr2O7 pyrochlore under a co...
The preparation of MOFs including a metal with an easily exchangeable oxidation state, while maintai...
The preparation of MOFs including a metal with an easily exchangeable oxidation state, while maintai...
The oxygen storage capacity of CexZr1‐xO2‐y compounds arises from the mixed‐valent character of ceri...
The oxygen storage capacity of CexZr1-xO2-y compounds arises from the mixed-valent character of ceri...
CeO2 and Ce1-xMxO2-δ (M=Zr, Ti, Pr, Y and Fe) nanocrystallites of 5-10 nm sizes have been synth...
CeO2 and Ce1-xMxO2-delta (M = Zr, Ti, Pr, Y and Fe) nanocrystallites of 5-10 nm sizes have been synt...