Journal: Materials

Article Title: Investigation of Biogenic Passivating Layers on Corroded Iron

doi: 10.3390/ma13051176

Figure Lengend Snippet: Molecular mapping performed by Raman spectroscopy on untreated coupons. ( a ) From left to right, a microscopic image with a square box indicating the analyzed area and chemical maps of goethite (Go) and lepidocrocite (Le). ( b ) Representative Raman spectrum of a mixture of lepidocrocite and goethite with the corresponding spectral regions selected for the elaboration of the respective chemical maps of lepidocrocite (region labeled “Le” with orange dashed lines) and goethite (region labeled “Go” with green dashed lines).

Article Snippet: Spectrum correction (automatic baseline correction) and chemical maps were elaborated using LabSpec Raman spectroscopy software suite (version 6, HORIBA France SAS, Villeneuve d’Ascq, France).

Techniques: Raman Spectroscopy, Labeling

Journal: Materials

Article Title: Investigation of Biogenic Passivating Layers on Corroded Iron

doi: 10.3390/ma13051176

Figure Lengend Snippet: Raman characterization of abiotic control coupons: ( a ) Microscopic image of the analyzed area with identified compounds indicated as siderite (Si), vivianite (Vi), and a mixture of goethite (Go) and lepidocrocite (Le). Representative Raman spectra of the different analyzed regions where ( b ) siderite (Si), ( c ) vivianite (Vi) and ( d ) a mix of goethite and lepidocrocite were identified (Le/Go), respectively.

Article Snippet: Spectrum correction (automatic baseline correction) and chemical maps were elaborated using LabSpec Raman spectroscopy software suite (version 6, HORIBA France SAS, Villeneuve d’Ascq, France).

Techniques: Control

Journal: Materials

Article Title: Investigation of Biogenic Passivating Layers on Corroded Iron

doi: 10.3390/ma13051176

Figure Lengend Snippet: Molecular mapping performed by Raman spectroscopy on bacterially treated iron coupons: ( a ) image of secondary electrons with a square box indicating the area analyzed by Raman spectoscopy, chemical maps ( b ) of vivianite (Vi, blue) and ( c ) of barbosalite (Ba, pink), and ( d ) Raman spectra of vivianite and barbosalite with the corresponding spectral regions selected for the elaboration of the respective chemical maps of vivianite (indicated with blue dashed lines) and barbosalite (indicated with magenta dashed lines).

Article Snippet: Spectrum correction (automatic baseline correction) and chemical maps were elaborated using LabSpec Raman spectroscopy software suite (version 6, HORIBA France SAS, Villeneuve d’Ascq, France).

Techniques: Raman Spectroscopy