Abstract
AbstractSorption‐enhanced steam reforming of glycerol (SESRG) is a promising method for the sustainable production of hydrogen (H2). In this work, composites of Ni and cationic‐modified hydrotalcite (HTlc) were promoted with Pt, thus resulting in two novel hybrid materials Pt‐NiMgHTlc and Pt‐NiCuHTlc. Activity trials for SESRG were performed in a fixed‐bed reactor in the range 673–873 K and it was found that the promotion with Pt improved H2 purity and multi‐cycle durability. The best results were achieved when Pt‐NiCuHTlc was employed at T=823 K: a H2 concentration of 98.7 mol % and adsorption capacity of 1.34 mol CO2/kg sorbent was achieved. When the multi‐cycle performance was tested for 20 cycles, it was found that NiMgHTlc, NiCuHTlc, Pt‐NiMgHTlc, and Pt‐NiCuHTlc were stable for 5, 8, 13, and 18 cycles. Finally, a likely reaction pathway for SESRG over the investigated multifunctional materials was proposed.
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