磁场和杂质离子存在下Fe/Na_2SO_4体系的阳极极化行为

中国腐蚀与防护学报

1998, Vol. 18

Issue (2): 119-125

研究报告

本期目录 | 过刊浏览

磁场和杂质离子存在下Fe/Na_2SO_4体系的阳极极化行为

陈俊明;吕战鹏

中国科学院上海冶金研究所;上海200050;中国科学院上海冶金研究所;上海200050

ANODIC POLARIZATION BEHAVIOR OF Fe/Na_2SO_4 SYSTEM IN THE PRESENCE OF MAGNETIC FIELD AND ADDITIONAL IONS

CHEN Jun-ming LU Zhan-peng (Shanghai Institute of Metallurgy; Chinese Academy of Science; Shanghai 200050)

全文: PDF(522 KB)

摘要: 研究指出,在添加一定浓度的OH~-、CO_3~(2-)、PO_4~(3-)、HC_3~-、Cr_2O_7~(2-)、H~+等离子后,分别由于以下某一种原因:(1)增大[OH~-],(2)加速界面FeSO_4的溶解,(3)发生新的电极反应,(4)阴碍铁的氧化膜形成,会改变Fe/0.5mol·L~(-1)Na_2SO_4体系的刚极极化行为。磁场会按离子种类及浓度改变它们在参与Fe/Na_2SO_4电极反应中的地位,会增大铁在酸性、中性和弱碱性Na_2SO_4溶液中的阳极电流密度。

关键词 ：磁场影响, 附加离子把响, Fe/Na_2SO_4体系, 阳极极化行为

Abstract：Experimental reaults showed that additional ions (OH-, CO32-, HCO3- ,PO43- ,Cr2O72-, H+) present at a certain concentration in Na2SO4 solution would alter the anodic polarization curves of Fe/0.05 mol·L-1 Na2SO4 system. That could be attributed to one of the following causes: (1) increases in [OH-]; (2) acceleration of FeSO4 dissolution at interface; (3) occurrence of new electrode reaction and (4) obstruction of the formation of iron oxide film. Magnetic field would change the role of additional anions in the anodic reaction of Fe/Na2SO4 system to some extent dependent on their species and concentrations. Besides, magnetic field would increase the anodic current density in acid, neutral and weak alkaline solutions.

Key words： Effect of magnetic field Effect of additional ions Anodic polarization behavior

收稿日期: 1998-04-25

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引用本文:

陈俊明;吕战鹏. 磁场和杂质离子存在下Fe/Na_2SO_4体系的阳极极化行为[J]. 中国腐蚀与防护学报, 1998, 18(2): 119-125.
. ANODIC POLARIZATION BEHAVIOR OF Fe/Na_2SO_4 SYSTEM IN THE PRESENCE OF MAGNETIC FIELD AND ADDITIONAL IONS. J Chin Soc Corr Pro, 1998, 18(2): 119-125.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1998/V18/I2/119

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2 王晨,陈俊明.中国腐蚀与防护学报,1994,14(2):123
3 吕战鹏,陈俊明.中国腐蚀与防护学报,1995,15(1):303
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[2]	吕战鹏;陈俊明. 磁场和Fe~(3+)对铁在0.5mol/LH_2SO_4中阴极极化行为的影响[J]. 中国腐蚀与防护学报, 1996, 16(1): 37-41.
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