Synthesis of methyl glycolate by hydrogenation of dimethyl oxalate with a P modified Co/SiO₂ catalyst

Abstract

A P-modified Co based catalyst was firstly reported in the selective hydrogenation of dimethyl oxalate(DMO) to methyl glycolate(MG) reaction and the synthesized Co8P/SiO2 exhibited 94.6% conversion of DMO and 88.1%...

Rational design of hydroxyapatite/graphite-supported bimetallic Cu–M (M = Cu, Fe, Co, Ni) catalysts for enhancing the partial hydrogenation of dimethyl oxalate to methyl glycolate

“…Nevertheless, other transition metal-based catalysts such as Cu/reduced graphene oxide, Ni 3 P/meso-SiO 2 , Cu/SiO 2 and P-modified Co/SiO 2 have been employed successfully to obtain the MG product, but the relatively low MG selectivity and the high loading ratio of Cu metal in some cases were pointed out as serious disadvantages. 8–11 Therefore, we felt necessary to develop a robust noble metal-free catalyst with low copper content for achieving high MG selectivity via the DMO hydrogenation reaction. In this perspective, bimetallic transition metal nanoparticles could be the best candidate in our DMO catalytic reaction, since the bimetallic catalysts showed promising catalytic performance in several hydrogenation reactions.…”

Emerging catalysts for the ambient synthesis of ethylene glycol from CO2 and its derivatives

“…In the past decade, many research teams have made much effort in researching and developing catalysts related to CTEG, 3–6 mainly focusing on reducing the use of precious Pd metal and developing highly stable copper-based catalysts without Cr metal. The Pd-based and Cu-based catalysts are employed for dimethyl oxalate (DMO) synthesis and its further hydrogenation to EG, respectively, which are two crucial steps for CTEG.…”

Role of the Cu dopant in the textural and catalytic features of the Co/ZnO catalyst for dimethyl oxalate selective hydrogenation

“…16 Nonetheless, the high hydrogen (H 2 ) activation capability of the Co NPs tends to promote DMO excessive hydrogenation, deteriorating the main product alcohol yield with methane as the main product. 17 For this case, decorating Co NPs using Cu dopants can effectively tune the catalytic features of the Co NPs by creating new catalytically active sites for DMO hydrogenation. 18 And the previous reports proposed that the calcination temperature plays an important role in determining the physicochemical features of the Co and Cu species in the CoCu/zinc oxide (ZnO) catalysts.…”

“…It is well‐known that metallic cobalt (Co) NPs, widely used for Fischer–Tropsch (F‐T) and various hydrogenation reactions, are believed to be a prospective candidate to address the ester hydrogenation 16 . Nonetheless, the high hydrogen (H 2 ) activation capability of the Co NPs tends to promote DMO excessive hydrogenation, deteriorating the main product alcohol yield with methane as the main product 17 . For this case, decorating Co NPs using Cu dopants can effectively tune the catalytic features of the Co NPs by creating new catalytically active sites for DMO hydrogenation 18 .…”