scholarly journals Determination of oxygen adsorption–desorption rates and diffusion rate coefficients in perovskites at different oxygen partial pressures by a microkinetic approach

2015 ◽  
Vol 17 (2) ◽  
pp. 1469-1481 ◽  
Author(s):  
M. Rochoux ◽  
Y. Guo ◽  
Y. Schuurman ◽  
D. Farrusseng
Keyword(s):  
Diffusion Rate ◽  
Oxygen Adsorption ◽  
Rate Coefficients ◽  
Surface Exchange ◽  
Diffusion Parameters ◽  
Partial Pressures ◽  
Adsorption Desorption ◽  
And Diffusion ◽  
Oxygen Surface Exchange

We show a generic method for the measurement of oxygen surface exchange and diffusion parameters from powders allowing the prediction of oxygen flux in membrane configuration.

Oxygen surface exchange and diffusion in mayenite single crystal

2019 ◽  
Vol 21 (44) ◽  
pp. 24740-24748 ◽  
Author(s):  
Anna S. Tolkacheva ◽  
Sergey N. Shkerin ◽  
Natalia M. Porotnikova ◽  
Mikhail V. Kuznetsov ◽  
Sergey V. Naumov ◽  
...  
Keyword(s):  
Single Crystal ◽  
Gas Phase ◽  
Surface Exchange ◽  
And Diffusion ◽  
Oxygen Surface Exchange ◽  
Oxygen Surface

Oxygen surface exchange and diffusion in Ca12Al14O33±δ single crystal were studied by a unique in situ method based on isotope equilibration in the gas phase.

Determination of sorption and diffusion parameters of 99Tc in crushed granite using through-diffusion experiments

2016 ◽  
Vol 311 (2) ◽  
pp. 1111-1116 ◽  
Author(s):  
Yu-Hung Shih ◽  
Tsuey-Lin Tsai ◽  
Liang-Cheng Chen ◽  
Te-Yen Su ◽  
Chuan-Pin Lee ◽  
...  
Keyword(s):  
Diffusion Parameters ◽  
Crushed Granite ◽  
Through Diffusion ◽  
And Diffusion

Oxygen surface exchange and diffusion in Pr1.75Sr0.25Ni0.75Co0.25O4±δ

2019 ◽  
Vol 21 (9) ◽  
pp. 4779-4790 ◽  
Author(s):  
Evgeniy Tropin ◽  
Maxim Ananyev ◽  
Natalia Porotnikova ◽  
Anna Khodimchuk ◽  
Saim Saher ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Gas Phase ◽  
Isotope Exchange ◽  
Surface Exchange ◽  
Oxygen Isotope Exchange ◽  
And Diffusion ◽  
Oxygen Surface Exchange ◽  
Oxygen Surface

Oxygen surface exchange and diffusion in Pr1.75Sr0.25Ni0.75Co0.25O4±δ have been investigated using two methods: pulsed isotope exchange (PIE) and oxygen isotope exchange with gas phase equilibration (IE GPE).

scholarly journals Oxygen surface exchange and diffusion in fast ionic conductors

1986 ◽  
Vol 18-19 ◽  
pp. 1038-1044 ◽  
Author(s):  
B STEELE ◽  
J KILNER ◽  
P DENNIS ◽  
A MCHALE ◽  
M VANHEMERT ◽  
...  
Keyword(s):  
Ionic Conductors ◽  
Surface Exchange ◽  
Fast Ionic Conductors ◽  
And Diffusion ◽  
Oxygen Surface Exchange ◽  
Oxygen Surface

Oxygen isotope exchange in La2NiO4±δ

2016 ◽  
Vol 18 (13) ◽  
pp. 9102-9111 ◽  
Author(s):  
M. V. Ananyev ◽  
E. S. Tropin ◽  
V. A. Eremin ◽  
A. S. Farlenkov ◽  
A. S. Smirnov ◽  
...  
Keyword(s):  
Gas Phase ◽  
Isotope Exchange ◽  
Exchange Method ◽  
Surface Exchange ◽  
Oxygen Isotope Exchange ◽  
Exchange Kinetics ◽  
And Diffusion ◽  
Oxygen Surface Exchange ◽  
Experimental Rig ◽  
Isotope Exchange Method

Oxygen surface exchange kinetics and diffusion have been studied by the isotope exchange method with gas phase equilibration using a static circulation experimental rig in the temperature range of 600–800 °C and oxygen pressure range of 0.13–2.5 kPa.

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