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Absolute photoionization cross sections of furanic fuels: 2-ethylfuran, 2-acetylfuran and furfural.

Journal of mass spectrometry : JMS (2015-10-28)
Audrey R Smith, Giovanni Meloni
ABSTRACT

Absolute photoionization cross sections of the molecules 2-ethylfuran, 2-acetylfuran and furfural, including partial ionization cross sections for the dissociative ionized fragments, are measured for the first time. These measurements are important because they allow fuel quantification via photoionization mass spectrometry and the development of quantitative kinetic modeling for the complex combustion of potential fuels. The experiments are carried out using synchrotron photoionization mass spectrometry with an orthogonal time-of-flight spectrometer used for mass analysis at the Advanced Light Source of Lawrence Berkeley National Laboratory. The CBS-QB3 calculations of adiabatic ionization energies and appearance energies agree well with the experimental results. Several bond dissociation energies are also derived and presented.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Furfural, 99%
Sigma-Aldrich
Furfural, ≥98%, FCC, FG
Sigma-Aldrich
Furfural, natural, ≥98%, FCC, FG
Sigma-Aldrich
Furfural, ACS reagent, 99%
Sigma-Aldrich
2-Ethylfuran, ≥99%
Sigma-Aldrich
2-Ethylfuran, 97%

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