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Petroleum like biodiesel production by catalytic decarboxylation of oleic acid over Pd/Ce-ZrO2 under solvent-free condition
- Authors
- Shim, Jae-Oh; Jang, Won-Jun; Jeon, Kyung-Won; Lee, Da-We; Na, Hyun-Suk; Kim, Hak-Min; Lee, Yeol-Lim; Yoo, Seong-Yeun; Jeon, Byong Hun; Roh, Hyun-Seog; Ko, Chang Hyun
- Issue Date
- Aug-2018
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Oxygen vacancy; Sustainable biodiesel; Decarboxylation; Solvent-free; Ce/Zr ratio
- Citation
- APPLIED CATALYSIS A-GENERAL, v.563, pp.163 - 169
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED CATALYSIS A-GENERAL
- Volume
- 563
- Start Page
- 163
- End Page
- 169
- ISSN
- 0926-860X
- 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 activity under 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 Xray 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.
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Related Researcher
- Jeon, Byong Hun
- COLLEGE OF ENGINEERING (DEPARTMENT OF EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING)