In situ X-ray absorption spectroscopy for identification of lead species adsorbed on a nickel surface in acidic perchlorate solution

Seo, Masahiro; Fushimi, Koji; Aoki, Yoshitaka; Habazaki, H.; Inaba, Masayuki; Yokomizo, Mitsutoshi; Hayakawa, Takazumi; Nakayama, Tsuneyoshi

doi:10.1016/j.jelechem.2012.02.019

Cited by 24 publications

(21 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of a Ni electrode subjected to corrosion in acidic solution, however, the above technique is not acceptable because of the changes in surface morphology and the precipitation of corrosion products in the thin electrolyte layer. Seo et al (2012) developed the periodical emersion method using a surface-roughened (sr-)Ni plate with a surface roughness (ratio of the real surface area to the geometrical surface area) of S r = 78.3 for the in situ XAS study of Pb-UPD on Ni in deaerated acidic perchlorate solution and succeeded in measuring the XAS spectra of Pb species on Ni under potentiostatic polarization. Figure 10 shows the normalized Pb L III XANES spectra of the sr-Ni plate (solid curve) polarized at −0.185 V in deaerated 0.1 m NaClO 4 + 10 −2 m HClO 4 solution with 10 −4 m Pb 2+ , of the metallic Pb foil (dotted curve) and of the Pb 2+ solution (dashed curve).…”

Section: In Situ Xas Study Of Pb-upd On Nimentioning

confidence: 99%

Inhibition effect of underpotential deposition of metallic cations on aqueous corrosion of metals

Seo

2017

Corrosion Reviews

Self Cite

View full text Add to dashboard Cite

Abstract:The experimental results reported so far for the inhibition effect of underpotential deposition (UPD) of metallic cations on aqueous corrosion of metals are criticized and discussed based on the prerequisite for UPD. The inhibition effect of Pb 2+ , Cd 2+ , Zn 2+ or Mn 2+ on hydrogen evolution or hydrogen absorption on Armco iron or various steels is classified into three potential regions: bulk deposition, UPD and adsorption of metallic cations without discharging. Moreover, the inhibition effect of Pb 2+ , Tl + or Sn 2+ on anodic dissolution of pure Fe, Ni or Ni-base alloys in acidic solutions is ascribed to the UPD of these metallic cations. Particularly, in situ X-ray absorption spectroscopy (XAS) for Pb-UPD on Ni has indicated that the electrodeposited Pb species on the Ni surface is metallic to form partly surface alloy and the metallic Pb blocks the active dissolution sites of Ni to inhibit the anodic dissolution. In contrast, in situ XAS for Sn-UPD on Ni has indicated that the electro-deposited Sn species is not only bonded with Ni atoms but also bonded with oxygen atoms and that the anodic dissolution of Ni is inhibited by the oxygenated Sn species on Ni.

show abstract

Section: In Situ Xas Study Of Pb-upd On Nimentioning

confidence: 99%

Inhibition effect of underpotential deposition of metallic cations on aqueous corrosion of metals

Seo

2017

Corrosion Reviews

Self Cite

View full text Add to dashboard Cite

show abstract

“…16 Moreover, it was confirmed by in situ surface X-ray absorption spectroscopy (XAS) that the Pb species deposited on Ni are in metallic state. 17 The following differences, however, are distinct between inhibition effects of Pb 2+ and Sn 2+ on anodic dissolution of Ni. In the case of Pb 2+ , although the Pb atoms deposited on Ni in the UPD potential region suppress the anodic dissolution of Ni, the anodic dissolution of Ni is re-activated due to anodic stripping of the deposited Pb atoms as the potential shifts to the noble direction and Ni is subsequently passivated.…”

mentioning

confidence: 98%

“…The employment of the specimen with large surface roughness is indispensable for surface XAS study without grazing incidence excitation. We have recently developed the periodical emersion method 17 using the surface-roughened Ni plate for in situ surface XAS study of the Pb-UPD on Ni in acidic perchlorate solution and succeeded in measuring the XAS spectra of Pb-UPD layer on Ni.…”

mentioning

confidence: 99%

See 1 more Smart Citation

In Situ X-Ray Absorption Spectroscopy Study of Sn Underpotential Deposition on Ni from Perchloric Acid

Seo¹,

Habazaki²,

Inaba³

et al. 2014

J. Electrochem. Soc.

View full text Add to dashboard Cite

In situ X-ray absorption spectroscopy (XAS) was applied to investigate the Sn underpotential deposition (UPD) on Ni surface from 0.2 M HClO 4 solution containing 10 −3 M Sn 2+ with relation to the inhibition effect of Sn on aqueous corrosion of Ni. The periodical emersion method under potentiostatic polarization, using the surface-roughened Ni plate (surface roughness S r = 78.3) as a working electrode was employed to detect sensitively the sub-monolayer coverage of Sn on Ni. The Sn K-edge absorption spectra in a scanning XAS mode were measured by monitoring the Sn K α1 fluorescence line. The Sn K-edge absorption near-edge structure (XANES) in the Sn-UPD potential region has revealed that the Sn-UPD layer on Ni is oxygenated. The extended X-ray absorption fine structure (EXAFS) analysis was performed with a two shell fit of the nearest neighbor Sn-Ni and Sn-O interactions, assuming that the uppermost Ni surface exposed to the solution is mainly oriented to the (111) plane. The results have indicated that Sn atoms are substituted like a surface alloy at face-center-cubic sites in the first Ni layer and further bonded with oxygen atoms. The strong inhibition effect of Sn on aqueous corrosion of Ni is ascribed to the bond between Sn and O atoms in addition to the bond between Sn and Ni atoms. The formation of metal monolayer on a foreign metal electrode at potentials more noble than the equilibrium potential of bulk electrodeposition is termed underpotential deposition (UPD). The UPD of Sn on Pt 1-4 has been investigated with relation to electrocatalysts for electro-oxidation of CO, 5 HCOOH 6 or methanol 7-10 while Sn-plating has been widely used in steel industry due to the corrosion prevention of iron and steels by Sn.11-14 Our recent study 15 has revealed that 10 −3 M Sn 2+ added in 0.2 M HClO 4 inhibits completely the anodic dissolution of pure Ni, suggesting the participation of Sn-UPD in corrosion inhibition of Ni. We reported previously that the addition of Pb 2+ in acidic perchlorate solution suppresses the anodic dissolution of Ni and the suppression of Ni corrosion is ascribed to the Pb-UPD. 16 Moreover, it was confirmed by in situ surface X-ray absorption spectroscopy (XAS) that the Pb species deposited on Ni are in metallic state. 17The following differences, however, are distinct between inhibition effects of Pb 2+ and Sn 2+ on anodic dissolution of Ni. In the case of Pb 2+ , although the Pb atoms deposited on Ni in the UPD potential region suppress the anodic dissolution of Ni, the anodic dissolution of Ni is re-activated due to anodic stripping of the deposited Pb atoms as the potential shifts to the noble direction and Ni is subsequently passivated. 16 In contrast in the case of Sn 2+ , no anodic dissolution of Ni is observed in the wide potential region exceeding the Sn-UPD region.15 The X-ray photoelectron spectroscopy (XPS) analysis has showed that in the case of Pb 2+ , any Pb species are not detected on the passive surface of Ni, 16 while in the case of Sn 2+ , Sn species are detected on the pa...

show abstract

“…He has introduced novel approaches for his studies, including Auger electron spectroscopy for characterization of passive films, Piezoelectric detection system and bending beam method for surface stress measurements of metal electrodes [2-4], QCM for corrosion of metal thin films [5], scanning electrochemical microscopy for in situ corrosion studies [6,7], nano-indentation and nano-scratching techniques combined with AFM for mechano-electrochemisty of passive metal surfaces [8,9], and recent in situ X-ray absorption spectroscopy for UPD study [10]. In particular, his pioneering mechano-electrochemisty is a powerful approach for further deep understanding of the growth and breakdown of surface oxide films on metals.…”

mentioning

confidence: 99%

Topical issue on “Corrosion of metals and physicochemical characterization of passive and corroding surfaces” devoted to celebrate the 72nd birthday of Dr. Masahiro Seo

Habazaki

Pyun²

2015

J Solid State Electrochem

Self Cite

View full text Add to dashboard Cite

He has a broad range of research interests and achievements in corrosion and interfacial electrochemistry. He has introduced novel approaches for his studies, including Auger electron spectroscopy for characterization of passive films, Piezoelectric detection system and bending beam method for surface stress measurements of metal electrodes [2-4], QCM for corrosion of metal thin films [5], scanning electrochemical microscopy for in situ corrosion studies [6,7], nano-indentation and nano-scratching techniques combined with AFM for mechano-electrochemisty of passive metal surfaces [8,9], and recent in situ X-ray absorption spectroscopy for UPD study [10]. In particular, his pioneering mechano-electrochemisty is a powerful approach for further deep understanding of the growth and breakdown of surface oxide films on metals. He has published more than 200 peer-reviewed papers.He has been contributing to international and domestic scientific societies. He was a member

show abstract

In situ X-ray absorption spectroscopy for identification of lead species adsorbed on a nickel surface in acidic perchlorate solution

Cited by 24 publications

References 40 publications

Inhibition effect of underpotential deposition of metallic cations on aqueous corrosion of metals

Inhibition effect of underpotential deposition of metallic cations on aqueous corrosion of metals

In Situ X-Ray Absorption Spectroscopy Study of Sn Underpotential Deposition on Ni from Perchloric Acid

Topical issue on “Corrosion of metals and physicochemical characterization of passive and corroding surfaces” devoted to celebrate the 72nd birthday of Dr. Masahiro Seo

Contact Info

Product

Resources

About