Petroleum like biodiesel production by catalytic decarboxylation of oleic acid over Pd/Ce-ZrO2 under solvent-free condition

Jae Oh Shim, Won Jun Jang, Kyung Won Jeon, Da We Lee, Hyun Suk Na, Hak Min Kim, Yeol Lim Lee, Seong Yeun Yoo, Byong Hun Jeon, Hyunseog Roh, Chang Hyun Ko

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Abstract

The Ce/Zr ratio of Pd/Ce-ZrO2 catalysts was systematically changed in order to investigate the effect of oxygen vacancy concentration on their decarboxylation activityunder solvent-free conditions for potential sustainable petroleum like biodiesel production. Pd/Ce0.5Zr0.5O2 exhibited the highest catalytic activity from all other tested catalysts because it contained the highest oxygen vacancy concentration and Pd dispersion, as shown by the X-ray photoelectron spectroscopy, Raman spectroscopy, and CO-chemisorption data. A catalyst deactivation study also showed that both the Pd dispersion and the oxygen vacancy concentration influences the catalytic activity.The catalyst deactivation was found to occur mainly due to Pd sintering, decreases in the BET surface area and Pd dispersion, and partially due to the loss of oxygen vacancies.

Original languageEnglish
Pages (from-to)163-169
Number of pages7
JournalApplied Catalysis A: General
Volume563
DOIs
Publication statusPublished - 2018 Aug 5

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All Science Journal Classification (ASJC) codes

  • Catalysis
  • Process Chemistry and Technology

Cite this

Shim, J. O., Jang, W. J., Jeon, K. W., Lee, D. W., Na, H. S., Kim, H. M., Lee, Y. L., Yoo, S. Y., Jeon, B. H., Roh, H., & Ko, C. H. (2018). Petroleum like biodiesel production by catalytic decarboxylation of oleic acid over Pd/Ce-ZrO2 under solvent-free condition. Applied Catalysis A: General, 563, 163-169. https://doi.org/10.1016/j.apcata.2018.07.005