An efficient Cu-based catalyst prepared by the one-step method of phytic acid assisted glucose for acetylene hydration

Phytic acid assisted glucose one-step method was used to prepare a Cu-based catalyst, thereby promoting the preparation of acetaldehyde from acetylene hydration. The Cu-PC8 catalyst showed high performance with acetylene conversion reaching as high as 96.9 % and an impressive selectivity of 88.1 % towards acetaldehyde, under a reaction temperature of 220 oC. Furthermore, it demonstrated good stability for up to 30 h, surpassing the performance of previous acetylene hydration catalysts using P-modified carbon as the carrier in existing literature. TEM analysis showed that the P-modified carbon material could effectively enhance the dispersion of copper, which is an active component, and prevent the aggregation of metals. XPS showed that P from phytic acid improved the catalytic performance by decreasing the electron cloud density around the copper species and increasing the content of the active components Cu2+ and Cu+.