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Citation: Fu De-Xue, Miao Juan, Wang Yun-Yan, Shu Yu-De. Mechanism of Na₂SeO₃ Reduction and Adsorption on Fe Electrode[J]. Acta Physico-Chimica Sinica, ;2002, 18(10): 956-960. doi: 10.3866/PKU.WHXB20021019 shu

Mechanism of Na₂SeO₃ Reduction and Adsorption on Fe Electrode

1.
Department of Chemical Engineering, Jiaozuo University, Jiaozuo　454100;Jiaozuo Technology College, Jiaozuo 454100;Department of Metallurgical Science and Engineering, Central South University, Changsha　410083

Received Date: 15 January 2002
Available Online: 15 October 2002

It is found by experiment that Na2SeO3 can improve the current efficiency remarkably. The reaction mechanism of the promotion of the current efficiency of electro-deposition of Zn-Mn alloy by the addition of Na2SeO3 to the cathode has been studied by cyclic voltammetry, linear sweep voltammetry, chronopotentiometry and electro-chemical impedance methods. It is found that under the conditions of Zn-Mn alloys electro-deposition, Na2SeO3 is reduced to Se32－, which is adsorbed on the surface of cathode, because of the adsorption of Se32－, the adsorption of H is prevented, the partial potential curve of hydrogen moves to negative region about 0.2 V in the presence of 0.1 g•L－1 Na2SeO3.
- Na₂SeO₃;Reduce and adsorption;Mechanism
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Mechanism of Na2SeO3 Reduction and Adsorption on Fe Electrode

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通讯作者: 陈斌, bchen63@163.com

Mechanism of Na₂SeO₃ Reduction and Adsorption on Fe Electrode