Enhanced oxygen storage capacity of cation-ordered cerium-zirconium oxide induced by titanium substitution

Enhanced oxygen storage capacity of cation-ordered cerium-zirconium oxide induced by titanium substitution

Herein, we report on the synthesis of Ce 0.5 Zr 0.5− x Ti x O 2 oxygen storage materials prepared via a solution combustion method. Ce 0.5 Zr 0.4 Ti 0.1 O 2 showed an outstanding oxygen storage capacity (1310 μmol-O per g) at 200 °C compared to conventional κ-Ce 2 Zr 2 O 8 (650 μmol-O per g) due to...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2018-04, Vol.54 (28), p.3528-3531
Hauptverfasser: Goto, Yoshihiro, Morikawa, Akira, Iwasaki, Masaoki, Miura, Masahide, Tanabe, Toshitaka
Format: Artikel
Sprache:eng
Schlagworte:
Cations
Cerium
Oxygen atoms
Storage capacity
Substitutes
Titanium
Zirconium oxides
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Zusammenfassung:Herein, we report on the synthesis of Ce 0.5 Zr 0.5− x Ti x O 2 oxygen storage materials prepared via a solution combustion method. Ce 0.5 Zr 0.4 Ti 0.1 O 2 showed an outstanding oxygen storage capacity (1310 μmol-O per g) at 200 °C compared to conventional κ-Ce 2 Zr 2 O 8 (650 μmol-O per g) due to its cation ordering and the formation of weakly bound oxygen atoms induced by Ti substitution. Cation-ordered Ce 0.5 Zr 0.4 Ti 0.1 O 2 with a high oxygen storage capacity (1310 μmol-O per g at 200 °C) was synthesized via a solution combustion method.
ISSN:1359-7345
1364-548X
DOI:10.1039/c8cc01308j