Highly Active and Stable ZrO2 -SiO2 -Supported Cu-Catalysts for the Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

2017 ◽  
Vol 2 (17) ◽  
pp. 4823-4829 ◽  
Author(s):  
Denghao Wang ◽  
ChuanCai Zhang ◽  
Mingyuan Zhu ◽  
Feng Yu ◽  
Bin Dai
2007 ◽  
Vol 16 (1) ◽  
pp. 78-80 ◽  
Author(s):  
Baowei Wang ◽  
Qian Xu ◽  
Hua Song ◽  
Genhui Xu

2019 ◽  
Vol 9 (20) ◽  
pp. 5763-5773 ◽  
Author(s):  
Wei-Qi Yan ◽  
Jun-Bo Zhang ◽  
Ling Xiao ◽  
Yi-An Zhu ◽  
Yue-Qiang Cao ◽  
...  

A descriptor-based microkinetic analysis has been performed to provide a basis for the catalyst screening for DMO hydrogenation to MG.


2020 ◽  
Vol 56 (5) ◽  
pp. 806-809 ◽  
Author(s):  
Jian Zhu ◽  
Weidong Sun ◽  
Song Wang ◽  
Guofeng Zhao ◽  
Ye Liu ◽  
...  

A Ni-foam structured MoNi4–MoOx nanocomposite catalyst is highly active, selective and stable for the gas-phase hydrogenation of dimethyl oxalate to ethanol.


2017 ◽  
Vol 433 ◽  
pp. 346-353 ◽  
Author(s):  
Hongmei Chen ◽  
Jingjing Tan ◽  
Jinglei Cui ◽  
Xiaohai Yang ◽  
Hongyan Zheng ◽  
...  

2019 ◽  
Vol 11 (41) ◽  
pp. 37635-37643 ◽  
Author(s):  
Jian Zhu ◽  
Liqun Cao ◽  
Cuiyu Li ◽  
Guofeng Zhao ◽  
Tong Zhu ◽  
...  

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Congyi Wu ◽  
Lili Lin ◽  
Jinjia Liu ◽  
Jingpeng Zhang ◽  
Feng Zhang ◽  
...  

AbstractEnhancing the intrinsic activity and space time yield of Cu based heterogeneous methanol synthesis catalysts through CO2 hydrogenation is one of the major topics in CO2 conversion into value-added liquid fuels and chemicals. Here we report inverse ZrO2/Cu catalysts with a tunable Zr/Cu ratio have been prepared via an oxalate co-precipitation method, showing excellent performance for CO2 hydrogenation to methanol. Under optimal condition, the catalyst composed by 10% of ZrO2 supported over 90% of Cu exhibits the highest mass-specific methanol formation rate of 524 gMeOHkgcat−1h−1 at 220 °C, 3.3 times higher than the activity of traditional Cu/ZrO2 catalysts (159 gMeOHkgcat−1h−1). In situ XRD-PDF, XAFS and AP-XPS structural studies reveal that the inverse ZrO2/Cu catalysts are composed of islands of partially reduced 1–2 nm amorphous ZrO2 supported over metallic Cu particles. The ZrO2 islands are highly active for the CO2 activation. Meanwhile, an intermediate of formate adsorbed on the Cu at 1350 cm−1 is discovered by the in situ DRIFTS. This formate intermediate exhibits fast hydrogenation conversion to methoxy. The activation of CO2 and hydrogenation of all the surface oxygenate intermediates are significantly accelerated over the inverse ZrO2/Cu configuration, accounting for the excellent methanol formation activity observed.


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