FeS阳极过程电化学研究  

Electrochemical Study on the Anodic Process of FeS

作　　者：徐洪辉[1] 徐徽[2] 杜勇[1] 潘竹[1] 张云河[2] 舒余德[2] 

机构地区：[1]中南大学粉末冶金国家重点实验室,湖南长沙4100832 [2]中南大学冶金科学与工程学院,湖南长沙410083

出　　处：《电化学》2004年第1期75-80,共6页Journal of Electrochemistry

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.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.

关 键 词：磁黄铁矿 金属硫化矿 阳极过程 电化学行为 高温合成法 FES 

分 类 号：O646[理学—物理化学]