Effect of the ZrO2 phase on Pd-based bifunctional catalysts for the hydrogenolysis of glucose

• Published in: Catalysis communications Vol. 128; p. 105688
• Main Authors: Liu, Chengwei, Shang, Yaning, Qi, Huan, Wang, Xianzhou, Gui, Jianzhou, Zhang, Chenghua, Zhu, Yulei, Li, Yongwang
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2019
• Subjects: Bifunctional catalyst; Crystal phase; Glucose; Hydrogenolysis; Value-added chemicals; Zirconia; Zirconia; Crystal phase; Bifunctional catalyst; Value-added chemicals; Glucose; Hydrogenolysis
• ISSN: 1566-7367; 1873-3905
• DOI: 10.1016/j.catcom.2019.04.020

ZrO2 species with different crystal phases (monoclinic, amorphous and tetragonal) were synthesized and used as supports for Pd-based bifunctional catalysts. ZrO2 species could affect the acidic and basic properties of the catalysts and the dispersion of Pd nanoparticles. The hydrogenolysis of glucose has been performed on the Pd/ZrO2 catalysts. The synergistic effect between Pd nanoparticles and ZrO2 species could catalyze the selective hydrogenolysis of glucose. For example, the highest selectivity of ethanol was obtained on the Pd/t-ZrO2 catalyst, with the value of 39.7%. [Display omitted] •The phase of ZrO2 species affects the activity and selectivity of Pd based catalysts.•Pd/m-ZrO2 could promote the polymerization of glucose and intermediates.•The highest selectivity of C3 polyols (49.0%) was obtained on Pd/am-ZrO2.•Pd/t-ZrO2 could catalyze the selective hydrogenolysis of glucose to ethanol.