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<p>Microbiologically influenced corrosion (MIC) poses serious troubles in the oil and gas industry, resulting in both economic and environmental issues. The use of biocides and anti-corrosion materials is the main solution to control the bio-corrosion. Recently, nanomaterials have been introduced as a new generation of both biocides and anti-corrosions effective in controlling the bio-corrosion. In this study, the MIC effect of <i>Clostridium</i> and <i>Citrobacter</i> as an APB consortia was studied by electrochemical methods, and the anti-corrosion effects of graphene oxide and gamma alumina powder were conducted on ASTM106 grade B stainless steel alloy. The corrosion morphology was studied using surface analysis methods. The corrosion behavior of steel in different mediums including the presence and absence of Acid Producing Bacteria (APB) and the nanostructures was investigated via electrochemical impedance spectroscopy and Tafel polarization techniques. Corrosion test result indicated that the addition of the nanostructure increased the charge transfer resistance, resulting in the reduction of corrosion rate by 81–87 percent. This is attributed to preventing the production of biofilm by the nanostructure and the formation of a protective film in the presence of graphene oxide Nano-sheets. The optimized concentration for both was determined as 0.5&#xa0;mg/mL. </p>

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Study the Anti-Corrosion Behavior of Gamma Alumina and Reduced Graphene Oxide on Native Acid Producing Bacterial Strain: A Comparative Study

  • 期刊论文

  • 发表日期：

    2025年7月10日

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  • Mohsen Markazi,
  • Javad Shabani Shayeh,
  • Behnam Rasekh

摘要

Microbiologically influenced corrosion (MIC) poses serious troubles in the oil and gas industry, resulting in both economic and environmental issues. The use of biocides and anti-corrosion materials is the main solution to control the bio-corrosion. Recently, nanomaterials have been introduced as a new generation of both biocides and anti-corrosions effective in controlling the bio-corrosion. In this study, the MIC effect of Clostridium and Citrobacter as an APB consortia was studied by electrochemical methods, and the anti-corrosion effects of graphene oxide and gamma alumina powder were conducted on ASTM106 grade B stainless steel alloy. The corrosion morphology was studied using surface analysis methods. The corrosion behavior of steel in different mediums including the presence and absence of Acid Producing Bacteria (APB) and the nanostructures was investigated via electrochemical impedance spectroscopy and Tafel polarization techniques. Corrosion test result indicated that the addition of the nanostructure increased the charge transfer resistance, resulting in the reduction of corrosion rate by 81–87 percent. This is attributed to preventing the production of biofilm by the nanostructure and the formation of a protective film in the presence of graphene oxide Nano-sheets. The optimized concentration for both was determined as 0.5 mg/mL.