Abstract
In presence of a cationic surfactant HTAB,linear potential scans for Na 2S at graphite anode in both saturated sodium tetra_borate solution and 1 mol·L -1 NaOH solution, have been investigated.Results show that anodic current density increases and peak potentials shift to more negative with the increase of HTAB concentrations. The anodic current densities increased by addition of HTAB are larger in 1 mol·L -1 NaOH than those in saturated sodium tetra_borate solution,resulting from different acting forces of HTAB with various charged electro-active species .Both oxidation and reduction peaks in cyclic voltammograms for Na 2S containing solution become sharper if HTAB is present in the anolyte. The appearance of several reduction peaks indicates that intermediate polysulfides are produced in negative-going scan.
Keywords
Sodium sulfide, Cyclic voltammetry, Surfactant, Electrolysis
Publication Date
1999-08-28
Online Available Date
1999-08-28
Revised Date
1999-08-28
Received Date
1999-08-28
Recommended Citation
Qingfeng Yi.
Effects of the Surfactant and pH on Linear Potential Scan of Aqueous Na 2S Solution[J]. Journal of Electrochemistry,
1999
,
5(3): Article 18.
DOI: 10.61558/2993-074X.3194
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol5/iss3/18
