Catalysis Letters p. 565 - 571 (2011)
Update date:2022-08-12
Topics:
Li, Jie
Tian, Wei-Ping
Shi, Li
PtNi bimetallic and Ni monometallic catalysts supported on HY-Al 2O3, HX-Al2O3, ZSM-5-Al 2O3, USY-Al2O3, Beta-Al 2O3 and Al2O3 were prepared and evaluated for the hydrogenation of maleic anhydride in the temperature range of 40-150 °C. Results from flow reactor studies showed that supports strongly affected the catalytic properties of different bimetallic and monometallic catalysts. The results showed that the HY-Al2O3 support exhibited the highest activity and selectivity. Using NiPt/Al2O 3-HY catalyst and performing the reaction, it was possible to carry out the lowest reaction temperature ever carried at 100% conversion. Adding a small amount of Pt (0.5) to the Ni (5%)/Al2O3-HY catalyst that is effective for increasing the selectivity and activity. We also found that PtNi is an efficient catalyst for the one-pot conversion of maleic acid into succinic acid with 100% conversion at 40 °C. Graphical Abstract: Hydrogenation activity was found to correlate to the extent of PtNi bimetallic bond formation, as characterized by the analysis of XRD and TPR.[Figure not available: see fulltext.]
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