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Citation: Song Shi-Zhe, Li Wei-Ming. Chemical and Electrochemical Modification of Porphyrin on Pure Iron Surface[J]. Acta Physico-Chimica Sinica, ;1994, 10(02): 135-140. doi: 10.3866/PKU.WHXB19940209 shu

Chemical and Electrochemical Modification of Porphyrin on Pure Iron Surface

1.
Department of Materials, Tianjin University, Tianjin 300072

Received Date: 17 July 1992
Available Online: 15 February 1994

Electrochemical modification of metal surface is an effective means for anticorrosion brought forward recently. The moamcation of porphyrin on iron was investigated in this work. The modified layer was formed on industrial pure iron surface using cyclic anodic potential sweep method in acetone and water solution containing porphyrin. The modification conditions and effect factors were studied. The modilied layer has od anticorrosion performance especially in hydrochloric acid solution. The moamed film also can be obtained on the pure iron by chemical modification. But its corrosion resistance is worse than the electrochemical modified layer. The surface morphology, composition and structure of modified layer were analysed by reflective infrared spectroscopy, ion microanalysis and SEM. The forming mechanism of modified layer was discussed.
- Electrochemical Modification,
- Chemical Modification,
- Metal Organic Compound,
- Porphyrin
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