Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 77, Issue -, Pages 118-127Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2019.04.026
Keywords
Catalytic ozonation; Gas phase; Structural; EXAFS; XANES; VOC
Funding
- University of Saskatchewan
- Canada Foundation for Innovation
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Government of Saskatchewan
- Western Economic Diversification Canada
- National Research Council Canada
- Canadian Institutes of Health Research
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Room temperature ozonation of gaseous acetone was performed using CoOx/gamma-alumina catalyst with different cobalt loadings. Turnover frequency of acetone removal increased by decreasing metal loading of the catalyst. A comprehensive catalyst characterization showed that variation in cobalt loading altered the local environment of cobalt. Enhanced performance of the catalysts with lower cobalt loadings were attributed to (a) increase in cobalt dispersion from 4% in Co10% to 16% in Co2.5% (b) decrease in oxidation state of cobalt from Co(II,III) to Co(II), which resulted in improved electron transferring ability and ozone utilization. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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