✦ LIBER ✦

XPS study of the MnO2 electrode in borate solution during the discharge process

✍ Scribed by B.A.Lopez de Mishima; Toshiaki Ohtsuka; Hisetaka Konno; Norio Sato

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 414 KB
Volume: 36
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(91)85338-8

No coin nor oath required. For personal study only.

✦ Synopsis

The thin hydrous manganese oxide electrodeposited on gold has been studied using X-ray Photoelectron Spectroscopy (XPS). The oxygen 1s spectrum changes during the cathodic discharge process and can be deconvoluted into three components: Mn=O, MnOH or Mn-OH, and water adsorbed.

The surface composition of the film, MnO,(OH),,(OH,),, has been described according to the 0 1s spectrum analysis. The x and y + z values were calculated from the 1,/Z,,, ratio peak intensities. The oxidation number of Mn has been calculated at different potentials during the manganese oxide reduction. These values indicate that MnO, is reduced to Mn(II1) in borate solutions at pH 9.2.

📜 SIMILAR VOLUMES

A study of the discharge process of mang

A study of the discharge process of manganese oxide in borate solution using in situ techniques

✍ B.A. Lopez De Mishima; Toshiaki Ohtsuka; Norio Sato 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 686 KB

The change of electrodeposited manganese oxide on gold during the reduction process was investigated in borate solution at pH 9.2, using in situ optical techniques. Raman spectroscopy (RS) showed five bands of manganese dioxide at 414 480,520,580 and 64Ocm-I, which decreased and disappeared during t

Rate of the MnO−4/MnO2−4 and MnO2−4/MnO3

Rate of the MnO−4/MnO2−4 and MnO2−4/MnO3−4 electrode reactions in alkaline solutions at solid electrodes

✍ K. Sekula-Brzezińska; P.K. Wrona; Z. Galus 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 860 KB

In-situ raman spectroscopy of manganese

In-situ raman spectroscopy of manganese dioxide during the discharge process

✍ B.A.Lopez De Mishima; Toshiaki Ohtsuka; Norio Sato 📂 Article 📅 1988 🏛 Elsevier Science ⚖ 342 KB

ChemInform Abstract: XPS Study and Elect

ChemInform Abstract: XPS Study and Electrochemical Behavior of the Nickel Hexacyanoferrate Film Electrode Upon Treatment in Alkaline Solutions.

✍ T. R. I. CATALDI; R. GUASCITO; A. M. SALVI 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 27 KB 👁 1 views

The processes of formation of a gel-like

The processes of formation of a gel-like anodic layer during polarization of an antimony electrode in H2SO4 solution

✍ M. Bojinov; D. Pavlov 📂 Article 📅 1991 🏛 Elsevier Science ⚖ 900 KB

A potentiodynamic study of the lead elec

A potentiodynamic study of the lead electrode in sulphuric acid solution

✍ Yoshifumi Yamamoto; Koichi Fumino; Takumi Ueda; Masaru Nambu 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 453 KB

Cyclic voltammetry has been used to study the electrochemical redox behaviour of the Pb/PbO,&PbSO, system on the lead electrode in aqueous H,SO, solutions. The ancdic and the cathodic polarization behaviour has been investigated under the'various conditions by changing the potential region, sweeping