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TY - JOUR
TI - Accelerating effect of catalase on microbiologically influenced corrosion of 304 stainless steel by the halophilic archaeon Natronorubrum tibetense
AU - Qian, Hongchang
AU - Zhang, Dawei
AU - Cui, Tianyu
AU - Chang, Weiwei
AU - Cao, Fahe
AU - Du, Cuiwei
AU - Li, Xiaogang
T2 - Corrosion Science
AB - The role of metabolic catalase in microbiologically influenced corrosion (MIC) of 304 stainless steel by Natronorubrum tibetense was investigated. Under sterile condition, the catalase concentration in the culture medium had no effect on the corrosion of stainless steel. In contrast, the addition of catalase in the inoculated culture medium resulted in more severe pitting corrosion of stainless steel. The potentiodynamic polarization results demonstrated that catalase mainly promoted the cathodic process of MIC of the stainless steel. Scanning electrochemical microscopy (SECM) further confirmed the accelerating effect of catalase on the cathodic oxygen reduction reaction of MIC.
DA - 2020/10/09/
PY - 2020
DO - 10.1016/j.corsci.2020.109057
DP - ScienceDirect
SP - 109057
J2 - Corrosion Science
LA - en
SN - 0010-938X
UR - http://www.sciencedirect.com/science/article/pii/S0010938X20316747
Y2 - 2020/10/13/07:11:32
KW - A. Microbiologically influenced corrosion
KW - B. Stainless steels
KW - C. Scanning electrochemical microscopy
ER -