Cu-fiber-structured La2O3–PdAu(alloy)–Cu nanocomposite catalyst for gas-phase dimethyl oxalate hydrogenation to ethylene glycol

Abstract

Structured Pd–Au–CuO_x/Cu-fiber obtainable by a galvanic co-deposition method is post-modified by La₂O₃ and consequently shows promising low-temperature activity and stability for the titled reaction, due to the in situ formation of a La₂O₃–PdAu(alloy)–Cu nanocomposite in the reaction thereby leading to enhanced ability for H₂ activation and H-spillover associated with the La₂O₃-assisted activation of CO and C–O groups of dimethyl oxalate.