CuCo/Ti-SBA-15 Catalyst for Glycerol Selective Oxidation

Selective oxidation of glycerol has been considered to be one of the ways of efficient conversion and utilization of glycerol. This paper reported the preparation of a series of supported non-noble metal catalysts on Ti modified SBA-15 supported by CuCo, a cheap and readily available non-noble metal, and evaluated the catalytic effect of the catalysts in the selective oxidation of glycerol to produce tartronic acid. The properties of Cu_xCo_y/Ti-SBA-15 catalysts were characterized by XRD, XPS, FT-IR, BET, SEM and TEM. The results showed that Cu and Co were uniformly distributed on the surface of Ti-SBA-15 and the original structure of SBA-15 was maintained. The catalytic activity of CuO and Co₃O₄ can be improved through the synergistic effect of valence change. In addition, the glycerol conversion was 53.8% and tartronic acid selectivity was 54.5% under the optimal reaction conditions. After five cycles, the catalyst still maintained good reuse performance.