Selective Oxidation of Glycerol to Glyceraldehyde with H2O2 Catalyzed by CuNiAl Hydrotalcites Supported BiOCl in Neutral Media

• Published in: Catalysis letters Vol. 149; no. 4; pp. 1046 - 1056
• Main Authors: Wang, Xiaoli, Wu, Gongde, Zhang, Xuelan, Wang, Dengfeng, Lan, Jianyang, Li, Jieyao
• Format: Journal Article
• Language: English
• Published: New York Springer US 15-04-2019; Springer Nature B.V
• Subjects: Catalysis; Catalysts; Chemistry; Chemistry and Materials Science; Conversion; Copper; Glycerol; Hydrogen peroxide; Industrial Chemistry/Chemical Engineering; Lattice vacancies; Organometallic Chemistry; Oxidation; Oxidizing agents; Physical Chemistry; Reaction mechanisms; Selectivity; Synergistic effect; Selective oxidation; Glycerol; Hydrotalcite; Bismuth oxychloride; Glyceraldehyde
• ISSN: 1011-372X; 1572-879X
• DOI: 10.1007/s10562-019-02689-8

CuNiAl hydrotalcites supported BiOCl were prepared by one-step synthesis for the selective oxidation of glycerol to glyceraldehyde with H
2
O
2
as oxidant. The prepared catalysts were found to be efficient due to the synergetic catalysis of surface oxygen vacancies, active Cu
2+
ions in the HT-lattice and abundant surface –OH groups of catalysts. The optimal glycerol conversion could reach 75.4% with 82.4% of the selectivity to glyceraldehyde. Moreover, the catalyst could be reused at least 6 times, and a possible reaction mechanism was also proposed.
Graphical Abstract
Inexpensive and environmentally friendly BiOCl/CuNiAl-HTs were synthesized by one-step for the highly selective oxidation of glycerol to glyceraldehyde. The glycerol conversion could reach 75.4% with 82.4% selectivity to GLAD. Such a highly efficient catalytic performance could be attributed to the synergistic effect of oxygen vacancies and the coordination of glycerol on Bi
3+
in the supported BiOCl catalyst.