Low effective activation energies for oxygen release from metal oxides: evidence for mass-transfer limits at high heating rates.

@article{Jian2014LowEA,
  title={Low effective activation energies for oxygen release from metal oxides: evidence for mass-transfer limits at high heating rates.},
  author={Guoqiang Jian and Lei Zhou and Nicholas W. Piekiel and Michael R. Zachariah},
  journal={Chemphyschem : a European journal of chemical physics and physical chemistry},
  year={2014},
  volume={15 8},
  pages={
          1666-72
        }
}
  • G. Jian, Lei Zhou, +1 author M. Zachariah
  • Published 6 June 2014
  • Chemistry, Physics
  • Chemphyschem : a European journal of chemical physics and physical chemistry
Oxygen release from metal oxides at high temperatures is relevant to many thermally activated chemical processes, including chemical-looping combustion, solar thermochemical cycles and energetic thermite reactions. In this study, we evaluated the thermal decomposition of nanosized metal oxides under rapid heating (~10(5) K s(-1)) with time-resolved mass spectrometry. We found that the effective activation-energy values that were obtained using the Flynn-Wall-Ozawa isoconversional method are… 
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