Elucidation of Microstructure Development in LaCrO3 Under Oxygen Chemical Potential Gradient in Demixing Region

2008 ◽  
Keyword(s):  
Chemical Potential ◽  
Potential Gradient ◽  
Microstructure Development ◽  
Chemical Potential Gradient ◽  
Oxygen Chemical Potential

In-Operando Raman Spectroscopy Study on Oxygen Chemical Potential Gradient in Ni-SDC Cermet Anode for SOFCs

2015 ◽  
Vol 68 (1) ◽  
pp. 1083-1090
Author(s):  
T. Matsui ◽  
K. Eguchi ◽  
T. Furukawa ◽  
T. Okanishi ◽  
H. Muroyama ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Chemical Potential ◽  
Potential Gradient ◽  
Spectroscopy Study ◽  
Chemical Potential Gradient ◽  
In Operando ◽  
Oxygen Chemical Potential

Active sodium transport in toad bladder despite removal of serosal potassium

1965 ◽  
Vol 208 (2) ◽  
pp. 401-406 ◽  
Author(s):  
Alvin Essig
Keyword(s):  
Sodium Transport ◽  
Chemical Potential ◽  
Potential Gradient ◽  
Ringer Solution ◽  
Active Sodium ◽  
Chemical Potential Gradient ◽  
Control Value ◽  
Active Sodium Transport ◽  
Solution Bathing ◽  
Determining Factor

Previous studies have demonstrated that removal of potassium from sodium-Ringer solution bathing the serosal surface of the toad badder depressed net sodium transport to some 5% of control value, whereas with choline-Ringer solution as serosal medium removal of serosal potassium depressed net sodium transport only to some 55% of control value. Although transport is down a chemical potential gradient in the latter situation, it appears to be an active process, for it is depressed by anaerobiosis, and persists against an electrochemical potential gradient. The data suggest that the concentration of potassium at the serosal aspect of the sodium pump is not in itself the rate-determining factor for active sodium transport following removal of serosal potassium.

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