Effect of the Zr/Al Molar Ratio on the Performance of Cu/ZrO 2 –Al 2 O 3 Catalysts for Methanol Steam Reforming

作者：Mouxiao Song, Wenqing Zeng, Li Li, Xueshuang Wu, Guiying Li, Changwei Hu · 发表于：Industrial & Engineering Chemistry Research · 年份：2023 · DOI：10.1021/acs.iecr.2c04266 · 被引用次数：18 · 研究领域：Catalytic Processes in Materials Science、Catalysts for Methane Reforming、Copper-based nanomaterials and applications

Methanol steam reforming was widely used to produce hydrogen for fuel cells. Copper-based catalysts are popular because of its low price and high activity, whereas high selectivity to H 2 is highly expected. Herein, copper-based catalysts with different Zr/Al molar ratios were prepared by the impregnation method. It was found that the 5 wt % Cu/ZrO 2 –8Al 2 O 3 catalyst exhibited high activity with methanol conversion of 84.5%, hydrogen production rate of 98.7 μmol/g cat ·s, and the lowest carbon monoxide selectivity of 1.5% because it had the smallest copper particle size, high medium-strong basic site, and high surface (Cu 1+ + Cu 0 ) proportion. The results of in situ FT-IR indicated that formate species might be important intermediates for H 2 production.