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电化学(中英文) ›› 2004, Vol. 10 ›› Issue (1): 75-80. 

• 研究论文 • 上一篇    下一篇

FeS阳极过程电化学研究

徐洪辉,徐徽,杜勇,潘竹,张云河,舒余德   

  1. 中南大学粉末冶金国家重点实验室,中南大学冶金科学与工程学院,中南大学粉末冶金国家重点实验室,中南大学粉末冶金国家重点实验室,中南大学冶金科学与工程学院,中南大学冶金科学与工程学院 湖南长沙4100832 ,湖南长沙410083 ,湖南长沙4100832 ,湖南长沙4100832 ,湖南长沙410083 ,湖南长沙410083
  • 收稿日期:2004-02-28 修回日期:2004-02-28 出版日期:2004-02-28 发布日期:2004-02-28

Electrochemical Study on the Anodic Process of FeS

XU Hong-hui~   

  1. (*1),XU Hui~2,DU Yong~1,PAN Zhu~1,ZHANG Yun-he~2,SHU Yu-de~2 Central South University,Changsha 410083, China; 2. School of Metallurgical Science and Engineering, Central South University,Changsha 410083, China
  • Received:2004-02-28 Revised:2004-02-28 Published:2004-02-28 Online:2004-02-28

摘要:  采用高温合成法由光谱纯的Fe和S制备FeS,并应用电位扫描和电位阶跃法研究FeS在0.5mol·L-1H2SO4+0.5mol·L-1K2SO4溶液中的阳极电化学行为.考察酸度对FeS阳极极化的影响,测定阳极过程的传递系数β、交换电流I0和Fe2+在FeS中的固相扩散系数DFe以及不同电极电位下阳极电化学反应活化能ΔEa.

关键词: FeS, 磁黄铁矿, 阳极电化学, 阳极氧化, 极化

Abstract: Ferrous sulfide (FeS) was synthesized with spectrum-pure Fe and S at high-temperature, and its anodic behaviors in the solution of 0.5 mol·L~(-1) H_2SO_4 + 0.5 mol·L~(-1) K_2SO_4 was studied by using voltage sweep and step voltage techniques. The effects of acidity on the anodic polarization curves of FeS were investigated. The transfer coefficient β and exchange current density I_0 in the anodic electrode process, and the solid diffusion coefficient D_(Fe) of Fe~(2+) in FeS were measured. And also the activation energies of anodic reaction at different voltages was also determined.

Key words: FeS, Pyrrhotite, Anodic electrochemistry, Anodic oxidation, Polarization

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