A novel and highly efficient Zr-containing catalyst based on humic acids for the conversion of biomass-derived ethyl levulinate into gamma-valerolactone
A novel MPV catalyst based on humic acids and Zr metal (HA-Zr) is prepared. HA-Zr is effective for MPV reaction with isopropanol as hydrogen source. Ethyl levulinate can be converted efficiently to γ-valerolactone by HA-Zr. Both performances and structures of HA-Zr are stable during reuse.