Effect of ascorbic acid on mild steel dissolution in sulphuric acid solution investigated by electrochemical polarization and surface probe techniques
文献类型：期刊论文
| 作者 | E. E. Oguzie ; Y. Li ; F. H. Wang |
| 刊名 | Journal of Applied Electrochemistry
 |
| 出版日期 | 2007 |
| 卷号 | 37期号:10页码:1183-1190 |
| 关键词 | mild steel ascorbic acid chemisorption chelation surface morphology low-carbon steel corrosion inhibition phosphoric-acid adsorption extract media |
| ISSN号 | 0021-891X |
| 中文摘要 | The effect of ascorbic acid (AA) on the corrosion of mild steel in sulphuric acid solution has been investigated by open circuit potential (OCP) and polarization measurements. AA was observed to shift the OCP to more positive potentials with increasing concentration. The polarization curves revealed that AA inhibited the anodic metal dissolution reaction, although this effect became negligible at high anodic overpotentials. The trend of inhibition efficiency with concentration showed that efficiency increased rapidly at low concentrations, remained almost steady at intermediate concentrations and increased again at high concentrations. The mechanism of inhibition was considered in terms of initial chemisorption of AA according to the Temkin isotherm, followed by formation of chelate compounds with Fe2+ ions at high concentrations. EDS and AFM analyses of the electrode surface support the proposed inhibition mechanisms. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33765]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | E. E. Oguzie,Y. Li,F. H. Wang. Effect of ascorbic acid on mild steel dissolution in sulphuric acid solution investigated by electrochemical polarization and surface probe techniques[J]. Journal of Applied Electrochemistry,2007,37(10):1183-1190. |
| APA | E. E. Oguzie,Y. Li,&F. H. Wang.(2007).Effect of ascorbic acid on mild steel dissolution in sulphuric acid solution investigated by electrochemical polarization and surface probe techniques.Journal of Applied Electrochemistry,37(10),1183-1190. |
| MLA | E. E. Oguzie,et al."Effect of ascorbic acid on mild steel dissolution in sulphuric acid solution investigated by electrochemical polarization and surface probe techniques".Journal of Applied Electrochemistry 37.10(2007):1183-1190. |
入库方式： OAI收割
来源：金属研究所
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