Enhancement of hydrogen production performance of novel perovskite LaNi0.4Al0.6O3-δ supported on MOF A520-derived λ-Al2O3
Summary Methanol steam reforming (MSR) is a promising method for hydrogen production from renewable energy. The effect of λ-Al 2 O 3 support derived from metal-organic frameworks (MOFs) aluminum fumarate (A520) on the performance and stability of LaNi 0.4 Al 0.6 O 3-δ for MSR is investigated. Results demonstrate that compared with LaNi 0.4 Al 0.6 O 3-δ , LaNi 0.4 Al 0.6 O 3-δ /λ-Al 2 O 3 can achieve complete conversion of methanol and excellent thermal stability due to the higher S BET and strong interaction between the metal components and λ-Al 2 O 3 . Characterization results indicate that the LaNi 0.4 Al 0.6 O 3-δ /λ-Al 2 O 3 catalyst, which was not successfully reduced due to its robust structure, still has active sites for the MSR reaction. This characteristic of the catalyst has the potential to be applied for onboard in-situ hydrogen production, because it can shorten the time of hydrogen reduction process. Furthermore, the effects of catalytic temperature, feed water-methanol ratio, and liquid hourly space velocity on performance of LaNi 0.4 Al 0.6 O 3-δ /λ-Al 2 O 3 are studied in detail and the optimal conditions are determined and applied for stability tests.
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