This paper reports results from in situ electrochemical X-ray absorption near-edge spectroscopy (XANES) studies of the corrosion processes on model thin iron films in the presence of iron reducing bacteria Shewanella putrefaciens. Here we investigate the electrochemical activity of two cultures grown in the presence and absence of Fe(III) citrate in the culture medium. The XANES spectra and the OCP data of the Fe sample incubated with the culture grown in absence of Fe(III) did not show any significant changes during twenty hours of monitoring. In the case of the culture grown in Fe(III) containing medium, an accelerated dissolution of the iron film was observed together with the formation of a mixed Fe(II)-Fe(III) hydroxide surface layer. The open circuit potential (OCP) steadily approached the free corrosion potential of iron in neutral chloride containing electrolytes, indicating a continuous dissolution process without passivation.

本文报道从原位电化学X射线吸收近边光谱结果（XANES）中铁的存在还原菌上模型薄铁片的腐蚀过程的研究腐败希瓦氏菌。在这里，我们研究了在培养基中存在和不存在柠檬酸三价铁的条件下生长的两种培养物的电化学活性。在不存在Fe（III）的情况下与培养物一起温育的Fe样品的XANES光谱和OCP数据在监测的20小时内未显示任何明显变化。在含有Fe（III）的培养基中培养的情况下，观察到铁膜的加速溶解，同时形成了混合的Fe（II）-Fe（III）氢氧化物表面层。开路电势（OCP）逐渐接近铁在含中性氯化物的电解质中的自由腐蚀电势，表明连续的溶解过程没有钝化。