Journal
JOURNAL OF CATALYSIS
Volume 338, Issue -, Pages 1-11Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2016.02.006
Keywords
Supported Ni catalysts; Effect of La; Hydrothermal treatment; Surface acidity and basicity; Hydrodeoxygenation of N,N-dimethylformamide
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Funding
- NSFC [21273105]
- Ministry of Science and Technology, China [2013AA031703]
- NSFJC [BK20140596]
- fundamental research funds for central universities
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Ni/LaAlSiO catalysts were prepared by the sequential precipitation of NiAlSiO and NiLaO. The addition of La increased the surface basicity, the dispersion of supported Ni, and the hydrothermal stability of the catalysts. The activity of hydrodeoxygenation of DMF (N,N-dimethylformamide) to TMA (trimethylamine) remained high on the Ni/LaAlSiO catalysts hydrothermally treated at 423 K. FTIR results showed that DMF and TMA adsorbed dissociatively onto Ni supported on the basic and acidic supports, respectively, which might be responsible for the decreased selectivity of TMA. By adjusting the NiLaO/NiAlSiO ratio, the Ni/LaAlSiO catalyst with proper surface acidity and basicity could be prepared, which exhibited high activity and selectivity for the hydrodeoxygenation of DMF to TMA. (C) 2016 Elsevier Inc. All rights reserved.
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