Copper Electrodeposition on Iridium, Ruthenium and Its Conductive Oxide Substrate Page: 8
View a full description of this thesis.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
1.3.3 Chronocoulometry (CC)
Figure 1.4 describes the time sequence of four steps used in the data
acquisition and processing. The work electrode was held at the initial potential
Ei, from which the ion's absorption happened, for 120 seconds. This time is
long enough for the adsorption equilibrium, which is built between the ions at
the work electrode surface and in the bulk of the solution. [12-14] Then: the
scope begins the acquisition of data; after 1 ms a wave pulse is sent to trigger
the potentiostat, which is happened as t=0 for all further events; (Figure 1.4)
this signal forced the potential to jump from Ei to Ef; the potential was held at Ef
for lOOms while the current transients were recorded; after lOOms, E came
back to Ei. The potential Ef is always equal to the potential where the total
desorption is occurred from the surface of working electrode. It means that
desorption rather than adsorption of ion is measured. The current transients
recorded over a lOms time window are captured and are showed later. [12-14]
Ef
E.
Ei
Time I ms
Figure 1.5 Chronocoulometry from trigger of Eito Ef, process in 0.1 M HCIO4
on polycrystalline Au electrode.
8
Upcoming Pages
Here’s what’s next.
Search Inside
This thesis can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Thesis.
Huang, Long. Copper Electrodeposition on Iridium, Ruthenium and Its Conductive Oxide Substrate, thesis, December 2003; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc4416/m1/20/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .