Copper-based catalyst for preparing methyl glycolate and preparation and application thereof

The invention provides a copper-based catalyst for preparing methyl glycolate at high selectivity, wherein the catalyst is prepared with a high-specific surface area material as a supporter and copperas an active component through a physical sputtering method in one step. The catalyst is used for a reaction for preparing the methyl glycolate through hydrogenation by catalyzing dimethyl oxalate, wherein the mass content of copper in the catalyst is 5-30% and the balanced being the supporter. The catalyst has the following advantages: (1) the copper is subjected to bombarding of Ar ion, so thatelectron structure of copper is varied, and the copper shows a noble metal-like property, wherein the copper on the catalyst is zero-valent stable copper, which is not liable to be oxidized, so thatthe copper can replace noble metals such as Au and Ag in the ester hydrogenation reaction; (2) the active metal, copper, has high selectivity on the methyl glycolate, so that the catalyst is free of any other additives. 本发明提供了一