NMR evidence of a spatially resolved oscillation in the Ef-LDOS in a nanoscale platinum electrocatalyst

Yu Ye Tong, Panakkattu K. Babu, Andrzej Wieckowski, Eric Oldfield

Research output: Contribution to journalArticlepeer-review


Indirect nuclear spin-spin J-coupling measurements have been carried out on a conducting, carbon-supported 8.8 nm platinum electrocatalyst by using 195Pt NMR. The J-coupling values show a marked variation across the spectrum. These J-coupling values were then transformed into the corresponding s-like Fermi level local density of states Ds(Ef,x), where x is the distance from the particle surface, revealing a spatially resolved oscillatory decay in Ds(Ef) which is responsible for the line broadening of the bulk peak in the 195Pt NMR spectrum.

Original languageEnglish (US)
Pages (from-to)183-188
Number of pages6
JournalChemical Physics Letters
Issue number3-4
StatePublished - Jul 30 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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