The absence of redox reactions for palladium(II) and copper(II) on electrostatically charged Teflon

Relevance to the concept of "cryptoelectrons"

Silvia Piperno, Hagai Cohen, Tatyana Bendikov, Meir Lahav, Igor Lubomirsky

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Rub-a-dub-dub: The hypothesis of contact electrification through the transfer of cryptoelectrons was tested by scrutinizing the evidence for the reduction of Pd2+ and Cu2+ by static charges on rubbed Teflon. X-ray photoelectron spectroscopy studies indicated that neither of these ions is reduced (see picture; black: Pd2+ adsorbed, red: Pd 0 adsorbed and then reduced by formadehyde, green: mixture of Pd 2+ and Pd0 arising from partial reduction after 2 h under the XPS probe) by the static charge. The presented alternative interpretation challenges the role of cryptoelectrons.

Original languageEnglish
Pages (from-to)5654-5657
Number of pages4
JournalAngewandte Chemie - International Edition
Volume50
Issue number25
DOIs
Publication statusPublished - Jun 14 2011

Fingerprint

Redox reactions
Polytetrafluoroethylene
Palladium
Polytetrafluoroethylenes
Copper
X ray photoelectron spectroscopy
Ions

Keywords

  • charge transfer
  • cryptoelectrons
  • electrostatic interactions
  • redox chemistry
  • triboelectrification

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis

Cite this

The absence of redox reactions for palladium(II) and copper(II) on electrostatically charged Teflon : Relevance to the concept of "cryptoelectrons". / Piperno, Silvia; Cohen, Hagai; Bendikov, Tatyana; Lahav, Meir; Lubomirsky, Igor.

In: Angewandte Chemie - International Edition, Vol. 50, No. 25, 14.06.2011, p. 5654-5657.

Research output: Contribution to journalArticle

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