scholarly journals Importance of the Initial Oxidation State of Copper for the Catalytic Hydrogenation of Dimethyl Oxalate to Ethylene Glycol

ChemistryOpen ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 969-976 ◽  
Author(s):  
Yannan Sun ◽  
Fanqiong Meng ◽  
Qingjie Ge ◽  
Jian Sun
Keyword(s):  
Ethylene Glycol ◽  
Oxidation State ◽  
Catalytic Hydrogenation ◽  
Initial Oxidation ◽  
Dimethyl Oxalate ◽  
Oxidation State Of Copper

Hydrogenation of dimethyl oxalate to ethylene glycol over Cu/KIT-6 catalysts

2021 ◽  
Vol 11 (7) ◽  
pp. 2403-2413
Author(s):  
Xinbin Yu ◽  
Michael Burkholder ◽  
Stavros G. Karakalos ◽  
Gregory L. Tate ◽  
John R. Monnier ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Ethylene Glycol ◽  
Catalytic Hydrogenation ◽  
Dimethyl Oxalate

Copper supported on KIT-6 mesoporous silica was prepared via ammonia evaporation (AE) method and applied for the catalytic hydrogenation of dimethyl oxalate (DMO) to ethylene glycol (EG).

Structured Pd–Au/Cu-fiber catalyst for gas-phase hydrogenolysis of dimethyl oxalate to ethylene glycol

2015 ◽  
Vol 51 (52) ◽  
pp. 10547-10550 ◽  
Author(s):  
Li Zhang ◽  
Lupeng Han ◽  
Guofeng Zhao ◽  
Ruijuan Chai ◽  
Qiaofei Zhang ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Gas Phase ◽  
Dimethyl Oxalate

A structured Pd–Au/Cu-fiber with a ternary Pd–Au–Cu+ complex is active, selective and stable for the gas-phase hydrogenolysis of dimethyl oxalate to ethylene glycol.

Enhanced metal-support interaction between Pd and hierarchical Nb2O5 via oxygen defects induction to promote CO oxidative coupling to dimethyl oxalate

Nanoscale ◽  
2021 ◽  
Author(s):  
Hong-Zi Tan ◽  
Yu-Ping Xu ◽  
Siteng Rong ◽  
Rongrong Zhao ◽  
Hongyou Cui ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Oxidative Coupling ◽  
Dimethyl Oxalate ◽  
Support Interaction ◽  
Oxygen Defects ◽  
Metal Support Interaction ◽  
Metal Support

Production of ethylene glycol from coal is a particularly interesting route as it is an economic alternative of the petrochemical-based route. In this process, effectively generating dimethyl oxalate (DMO) is...

scholarly journals A Comparative Study of the ZnO Growth on Graphene and Graphene Oxide: The Role of the Initial Oxidation State of Carbon

2020 ◽  
Vol 6 (2) ◽  
pp. 41
Author(s):  
Miguel Angel Gomez-Alvarez ◽  
Carlos Morales ◽  
Javier Méndez ◽  
Adolfo del Campo ◽  
Fernando J. Urbanos ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxidation State ◽  
Atomic Ratio ◽  
Quasi Equilibrium ◽  
Initial Oxidation ◽  
Sio2 Substrate ◽  
Graphene Layers ◽  
Stages Of Growth ◽  
Early Stages

The role of the oxidation state of carbon on the early stages of growth of metal oxides was studied for the particular case of ZnO deposition on graphene and graphene oxide on SiO2 (G/SiO2 and GO/SiO2, respectively) substrates. The growth was carried out by thermal evaporation of metallic Zn under an oxygen atmosphere at room temperature. This technique permits quasi-equilibrium conditions during the oxide growth, allowing the characterization of the fundamental interaction between ZnO and the graphene-based substrates. Although in both cases ZnO follows a Volmer–Weber growth mode controlled by nucleation at defects, the details are different. In the case of the GO/SiO2 substrate, the nucleation process acts as a bottleneck, limiting the coverage of the complete surface and allowing the growth of very large ZnO structures in comparison to G/SiO2. Moreover, by studying the Zn-LMM Auger spectra, it is shown how the initial nature of the substrate influences the composition of the ZnO deposit during the very early stages of growth in terms of Zn/O atomic ratio. These results are compared to those previously reported regarding ZnO growth on graphite and graphene on Cu (G/Cu). This comparison allows us to understand the role of different characteristics of graphene-based substrates in terms of number of defects, oxidation state, graphene support substrate and number of graphene layers.

scholarly journals Remarkable enhancement of Cu catalyst activity in hydrogenation of dimethyl oxalate to ethylene glycol using gold

2012 ◽  
Vol 2 (8) ◽  
pp. 1637 ◽  
Author(s):  
Ya-nan Wang ◽  
Xinping Duan ◽  
Jianwei Zheng ◽  
Haiqiang Lin ◽  
Youzhu Yuan ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Catalyst Activity ◽  
Dimethyl Oxalate ◽  
Cu Catalyst
Sign in / Sign up

Export Citation Format

Share Document