화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.47, 228-235, March, 2017
DOI10.1016/j.jiec.2016.11.037  Export Citation
Bioethanol valorization via its gas phase oxidation over Au &/or Ag supported on various oxides
Paresh H. Rana, and Parimal A. Parikh1, †
  • Department of Chemical Engineering, Government Engineering College, Bhuj 370001, Gujarat, India
  • 1Department of Chemical Engineering, S.V. National Institute of Technology, Surat 395007, Gujarat, India
E-mail:
Au and Ag nanoparticles supported on CeO2, SiO2 and ZrO2 were examined for bioethanol oxidation with air. Catalysts prepared were characterized by powder X-ray diffraction, transmission electron microscopy, scanning electron microscopy and Fourier transform infrared spectroscopy. Catalytic behavior was evaluated between 200-350 °C and 5 atm with gas hourly space velocity of 18,000 mL gcat -1 h-1. Au/ZrO2 and Au/CeO2 were found to be more active than other catalysts. Less activity of Ag/ZrO2 and Au-Ag/ZrO2 is attributed to facile oxidation of Ag under aerobic conditions. Acetaldehyde selectivity follows the order: Au/CeO2 > Ag/ZrO2 > Au-Ag/ZrO2 > Au/ZrO2 > Au/SiO2 under optimal conditions.
Keywords:Heterogeneous catalysis;Supported catalysts;Oxidation;Bioethanol;Metal-support interactions
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