Oxygen Storage Property and Chemical Stability of SrFe1–xTixO3−δ with Robust Perovskite Structure

2017 ◽  
Vol 121 (35) ◽  
pp. 19358-19364 ◽  
Author(s):  
Akito Demizu ◽  
Kosuke Beppu ◽  
Saburo Hosokawa ◽  
Kazuo Kato ◽  
Hiroyuki Asakura ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Perovskite Structure ◽  
Oxygen Storage ◽  
Storage Property

Synthesis, Electrical Properties and Chemical Stability of BaCe0.7In0.3-xGdxO3-δ

2016 ◽  
Vol 848 ◽  
pp. 401-410 ◽  
Author(s):  
Jia Huan Xu ◽  
Wei Han ◽  
Hui Ding ◽  
Wei Jin Chen ◽  
Jun Xiang
Keyword(s):  
Electrical Conductivity ◽  
Electrical Properties ◽  
Chemical Stability ◽  
Perovskite Structure ◽  
Doping Concentration ◽  
Interplanar Spacing ◽  
Sol Gel ◽  
Impedance Spectra ◽  
Spectra Analysis ◽  
Diffraction Angle

In3+, Gd3+ were selected as substitution elements for Ce4+ in order to increase electrical conductivity and chemical stability of BaCeO3. A modified sol-gel method was used to fabricate BaCe0.7In0.3-xGdxO3-δ (x = 0, 0.1, 0.2, 0.3) nanopowders. XRD results indicated that the diffraction angle moved to lower with increase of the Gd3 + doping concentration, so that the interplanar spacing gradually increased. The impedance spectra analysis showed that conductivity first increased (x = 0~0.2) and then decreased with the Gd3 + doping increase. The total conductivities at 800oC were 3.8 × 10-3 S·cm-1 (x = 0), 8.0 × 10-3 S· cm-1 (x = 0.1), 2.5 × 10-2 S· cm-1 (x = 0.2), 1.36 × 10-2 S ·cm-1 (x = 0.3). Chemical stability test in CO2 show that all samples except for x=0.3 sample calcination at 800oC for 2h under 100% CO2 and x=0, 0.1 samples heating in boiling water for 12h kept main perovskite structure. Therefore, x=0.1 sample show better electrical conductivity and chemical stability.

Structure of Ce1−xSnxO2 and its relation to oxygen storage property from first-principles analysis

2010 ◽  
Vol 132 (19) ◽  
pp. 194702 ◽  
Author(s):  
Asha Gupta ◽  
Anil Kumar ◽  
M. S. Hegde ◽  
U. V. Waghmare
Keyword(s):  
First Principles ◽  
Oxygen Storage ◽  
Storage Property

Preparation and oxygen storage of cadmium-modified zeolites with superior electron transfer capacities

RSC Advances ◽  
2015 ◽  
Vol 5 (95) ◽  
pp. 77490-77494 ◽  
Author(s):  
Jing-Feng Wang ◽  
Dan Wang ◽  
Hui Zeng ◽  
Zhong-Fu Zhou
Keyword(s):  
Electron Transfer ◽  
Oxygen Storage ◽  
Modified Zeolite ◽  
Modified Zeolites ◽  
Storage Property ◽  
Electron Transfer Capacities

An electron-rich cadmium-modified zeolite prepared by the incorporation of cadmium vapor into the channels of a dehydrodrated HZSM-5, shows superior oxygen storage property.

Efficient oxygen storage property of Sr–Fe mixed oxide as automotive catalyst support

2019 ◽  
Vol 7 (3) ◽  
pp. 1013-1021 ◽  
Author(s):  
Kosuke Beppu ◽  
Saburo Hosokawa ◽  
Hiroyuki Asakura ◽  
Kentaro Teramura ◽  
Tsunehiro Tanaka
Keyword(s):  
Catalytic Activity ◽  
Mixed Oxide ◽  
Storage Capacity ◽  
No Reduction ◽  
Catalyst Support ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
High Catalytic Activity ◽  
Wide Range ◽  
Storage Property

Pd/Sr3(Fe0.8Ni0.2)2O7−δ showed a high catalytic activity for NO reduction under a wide range of oxygen concentrations due to the excellent oxygen storage capacity.

Effect of potassium, calcium and magnesium on yield, quality, and storage property of banana

2010 ◽  
Vol 18 (2) ◽  
pp. 290-294
Author(s):  
Bao-Mei YANG ◽  
Jin-Quan LI ◽  
Li-Xian YAO ◽  
Guo-Liang LI ◽  
Zhao-Huan HE ◽  
...  
Keyword(s):  
Yield Quality ◽  
Calcium And Magnesium ◽  
And Storage ◽  
Storage Property
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