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Lee, Jae Sung
Eco-friendly Catalysis and Energy Lab
Research Interests
  • Photocatalytic water splitting, artificial photosynthesis, fuel cells, heterogeneous catalysis

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Quantitative XANES analysis of cuprous dibromide complex formed in the oxidative carbonylation of phenols

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Title
Quantitative XANES analysis of cuprous dibromide complex formed in the oxidative carbonylation of phenols
Other Titles
Quantitative XANES analysis of cuprous dibromide complex formed in the oxidative carbonylation of phenols
Author
Kim, Won BaeLee, Jae Sung
Keywords
METHANOL SYNTHESIS CATALYSTS; RAY-ABSORPTION SPECTROSCOPY; SI BINARY OXIDES; DIPHENYL CARBONATE; DIAMMINECOPPER(I) ION; LINEAR COMBINATION; BISPHENOL-A; PD; COPPER; EDGE
Issue Date
2003-09
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY B, v.107, no.35, pp.9195 - 9202
Abstract
Quantitative analysis of Cu K-edge XANES spectra representing mixed states of two cuprous compounds was studied to determine the composition of copper species formed in the oxidative carbonylation of phenols. The quantification of two Cu(I) species, Cu2O and an unusual cuprous dibromide complex in the linear configuration stabilized with tetrabutylammonium cation, could be achieved through detailed edge analyses to choose proper reference XANES spectra, followed by fitting the experimental XANES spectrum with the linear combination of the two reference spectra. The amount of cuprous dibromide complex obtained by this method showed an excellent correlation with the rate of formation of the desired para-position carbonylation products, indicating that the phase was the active and selective catalytic phase of copper
URI
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DOI
10.1021/jp034627q
ISSN
1520-6106
Appears in Collections:
ECHE_Journal Papers
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