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研究论文

表面活性剂和溶液pH对硫化钠溶液线性电位扫描的影响

  • 易清风
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  • 湘潭工学院化工系!湘潭411201,中南工业大学化学系!长沙410083,中南工业大学化学系!长沙410083

收稿日期: 1999-08-28

  修回日期: 1999-08-28

  网络出版日期: 1999-08-28

Effects of the Surfactant and pH on Linear Potential Scan of Aqueous Na 2S Solution

  • Yi Qingfeng
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  • (Chem.Eng.Dept.of Xiangtan Polytechnic University,Xiangtan 411201) Chen Qiyuan Zhang Pingmin (Chem. Dept. of Central South Univ. of Technology,Changsha 410083

Received date: 1999-08-28

  Revised date: 1999-08-28

  Online published: 1999-08-28

本文引用格式

易清风 . 表面活性剂和溶液pH对硫化钠溶液线性电位扫描的影响[J]. 电化学, 1999 , 5(3) : 337 -341 . DOI: 10.61558/2993-074X.3194

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.

参考文献

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