Estimation of surface charge densities for low‐energy atom diffraction

1982 ◽  
Vol 21 (2) ◽  
pp. 330-332 ◽  
Author(s):  
D. Haneman ◽  
Roger Haydock
Soil Research ◽  
1981 ◽  
Vol 19 (1) ◽  
pp. 41 ◽  
Author(s):  
RM McKenzie

Surface charge was measured on four synthetic manganese dioxides. Charge densities on two cryptomelanes followed closely the values predicted by a theoretical model. Charge densities on two birnessites were much higher, and did not fit the model.


2002 ◽  
Vol 256 (2) ◽  
pp. 256-261 ◽  
Author(s):  
Mattias Olsson ◽  
Anna-Maria Jakobsson ◽  
Yngve Albinsson

2000 ◽  
Vol 65 (3) ◽  
pp. 371-379 ◽  
Author(s):  
Shuping Bi ◽  
Hong Gao ◽  
Wei Tang ◽  
Zhiguo Yang ◽  
Sidan Du ◽  
...  

The application of a.c. oscillopolarography for a fast evaluation of differential capacity and surface charge in electrical double layers on the mercury electrode is described. The Cd = f(E), Q = f(E) and γ = f(E) functions are displayed. The obtained values of differential capacity and surface charge densities are in agreement with those from the a.c. bridge method. The new method has the distinct advantages of a rapid analytical procedure, visual detection, very simple manipulation and low-cost instrumentation. It is very useful in practical analysis where accurate values of differential capacity and surface charge are not required.


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