화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.54, 137-145, October, 2017
DOI10.1016/j.jiec.2017.05.026  Export Citation
Effect of aging temperature during refluxing on the textural and surface acidic properties of zirconia catalysts
Eunpyo Hong, Sung Woo Baek, Mi Shin1, Young-Woong Suh1, †, and Chae-Ho Shina1, †
  • Department of Chemical Engineering, Chungbuk National University, Chungbuk 28644, Republic of Korea
  • 1Department of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea
E-mail:,
Hydrous zirconia was synthesized via precipitation method, and effect of aging temperature during refluxing (30-100 °C) precursor solution was investigated. We found that the aging temperature influenced on structural and textural properties of the hydrous zirconia, with variations in the textural properties leading to changes in the surface properties of calcined zirconia, including the acid functionalities. In addition, ZrO2 aged at 100 °C exhibited the highest specific surface area and the highest Lewis and Bronsted acidities among the samples. Finally, enhanced catalytic activity was also observed for the ZrO2 samples prepared at higher aging temperatures in the dehydration of iso-propanol.
Keywords:Zirconia;Reflux;Aging temperature;Acid properties;Dehydration
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