In-situ Mössbauer effect spectroscopy of adsorbed species on high surface area electrodes

Daniel Alberto Scherson*, S. B. Yao, E. B. Yeager, J. Eldridge, M. E. Kordesch, R. W. Hoffman

*この研究の対応する著者

研究成果: Article査読

9 被引用数 (Scopus)

抄録

The feasibility of in-situ Mössbauer transmission spectroscopy of species adsorbed on high surface area electrodes has been demonstrated using iron phthalocyanine on high surface area carbon. The choice of an appropriate cell geometry has allowed detection of strong absorption signals at room temperature without resorting to isotope enrichment of the compound. The quadrupole splitting of the doublet assigned to FePc adsorbed on the carbon surface was found to decrease from 0.88 mm/s for the dry specimen to 0.68 mm/s upon immersion of the sample into an arsaline electrolyte with a nearly constant isomer shift of ∼0.35 mm/s with respect to α-Fe (metal). This phenomenon is antributed to the formation of an octahedral complex with a hydroxyl ion coordinated in the axial position. Mössbauer spectra at several potentials have been obtained and no significant differences were observed in any of the relevant parameters.

本文言語English
ページ(範囲)325-332
ページ数8
ジャーナルApplications of Surface Science
10
3
DOI
出版ステータスPublished - 1982 1 1
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)

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