Effect of calcination temperature on the association between free NiO species and catalytic activity of Ni-Ce0.6Zr0.4O2 deoxygenation catalysts for biodiesel production
- Title
- Effect of calcination temperature on the association between free NiO species and catalytic activity of Ni-Ce0.6Zr0.4O2 deoxygenation catalysts for biodiesel production
- Author
- 전병훈
- Keywords
- Deoxygenation; Oleic acid; Calcination temperature; Free NiO; Acidity
- Issue Date
- 2019-02
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Citation
- RENEWABLE ENERGY, v. 131, Page. 144-151
- Abstract
- In this study, a series of Ni−Ce0.6Zr0.4O2 catalysts, which were synthesized by co-precipitation followed by calcination at different temperatures, were applied for the deoxygenation of oleic acid. The physicochemical properties of the catalysts were characterized by N2 adsorption-desorption, X-ray diffraction (XRD), H2 chemisorption, H2 temperature-programmed reduction (H2-TPR), NH3 temperature-programmed desorption (NH3-TPD), and X-ray photoelectron spectroscopy (XPS). The Ni−Ce0.6Zr0.4O2 catalyst calcined at 300 °C exhibited the highest conversion for oleic acid as well as selectivity for diesel-range compounds. It is predominantly related to the highest amount of free NiO species. In addition, the acidity of the catalyst significantly affected the selectivity and distribution of products.
- URI
- https://www.sciencedirect.com/science/article/pii/S0960148118308395?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/104013
- ISSN
- 0960-1481
- DOI
- 10.1016/j.renene.2018.07.042
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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