The mechanism of CO coupling reaction to form dimethyl oxalate over Pd/α-Al2O3

2009 ◽  
Vol 314 (1-2) ◽  
pp. 63-70 ◽  
Author(s):  
Yang Ji ◽  
Gang Liu ◽  
Wei Li ◽  
Wende Xiao
Keyword(s):  
Coupling Reaction ◽  
Dimethyl Oxalate ◽  
Α Al2o3 ◽  
Co Coupling

scholarly journals Study on Ammonia-induced Catalyst Poisoning in the Synthesis of Dimethyl Oxalate

2021 ◽  
Vol 16 (1) ◽  
pp. 1-8
Author(s):  
Hua-wei Liu ◽  
Sheng-tao Qian ◽  
Er-fei Xiao ◽  
Ying-jie Liu ◽  
Jun Lei ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Photoelectron Spectroscopy ◽  
Coupling Reaction ◽  
Industrial Plant ◽  
Dimethyl Oxalate ◽  
Xps Characterization ◽  
Temperature Liquid ◽  
Amine Compounds ◽  
Co Coupling

On an industrial plant, we observed and examined the ammonia-poisoning catalyst for the synthesis of dimethyl oxalate (DMO). We investigated the catalytic activity in response to the amount of ammonia and revealed the mechanism of such poisoning by X-ray photoelectron spectroscopy (XPS) characterization. Our results show that only 0.002% ammonia in the feed gas can significantly deactivate the Pd-based catalyst. Two main reasons were proposed: one is that the competitive adsorption of ammonia on the active component Pd hinders the carbon    monoxide (CO) coupling reaction and the redox cycle between Pd0 and Pd2+; and the other is that the high-boiling nitrogen-containing amine compounds formed by reacting with ammonia have adsorbed on the catalyst, which hinders the progress of the catalytic reaction. The deactivation caused by the latter is irreversible. The catalytic activity can be completely restored by a low-temperature liquid-phase in-situ regeneration treatment. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 

In situ DRIFTS study of CO coupling to dimethyl oxalate over structured Al-fiber@ns-AlOOH@Pd catalyst

2016 ◽  
Vol 344 ◽  
pp. 173-183 ◽  
Author(s):  
Chunzheng Wang ◽  
Pengjing Chen ◽  
Yakun Li ◽  
Guofeng Zhao ◽  
Ye Liu ◽  
...  
Keyword(s):  
Pd Catalyst ◽  
In Situ Drifts ◽  
Dimethyl Oxalate ◽  
Co Coupling

Microfibrous-Structured Pd/AlOOH/Al-Fiber for CO Coupling to Dimethyl Oxalate: Effect of Morphology of AlOOH Nanosheet Endogenously Grown on Al-Fiber

2017 ◽  
Vol 9 (11) ◽  
pp. 9795-9804 ◽  
Author(s):  
Chunzheng Wang ◽  
Jia Ding ◽  
Guofeng Zhao ◽  
Tao Deng ◽  
Ye Liu ◽  
...  
Keyword(s):  
Dimethyl Oxalate ◽  
Co Coupling

scholarly journals High-performance, low Pd-loading microfibrous-structured Al-fiber@ns-AlOOH@Pd catalyst for CO coupling to dimethyl oxalate

2016 ◽  
Vol 337 ◽  
pp. 145-156 ◽  
Author(s):  
Chunzheng Wang ◽  
Lupeng Han ◽  
Pengjing Chen ◽  
Guofeng Zhao ◽  
Ye Liu ◽  
...  
Keyword(s):  
High Performance ◽  
Pd Catalyst ◽  
Dimethyl Oxalate ◽  
Co Coupling

Pd-Fe/α-Al2O3/cordierite monolithic catalysts for the synthesis of dimethyl oxalate: effects of calcination and structure

2012 ◽  
Vol 6 (3) ◽  
pp. 259-269 ◽  
Author(s):  
Shengping Wang ◽  
Xin Zhang ◽  
Yujun Zhao ◽  
Yadong Ge ◽  
Jing Lv ◽  
...  
Keyword(s):  
Dimethyl Oxalate ◽  
Monolithic Catalysts ◽  
Α Al2o3

Dual active sites fabricated through atomic layer deposition of TiO2 on MoS2 nanosheet arrays for highly efficient electroreduction of CO2 to ethanol

2021 ◽  
Vol 9 (11) ◽  
pp. 6790-6796
Author(s):  
Feixuanyu Qi ◽  
Kang Liu ◽  
De-Kun Ma ◽  
Fangfang Cai ◽  
Min Liu ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Active Sites ◽  
Regulatory Mechanism ◽  
Coupling Reaction ◽  
Atomic Layer ◽  
Reduction Reaction ◽  
Layer Deposition ◽  
Nanosheet Arrays ◽  
Mos2 Nanosheet ◽  
Co Coupling

Ultrathin TiO2/MoS2 nanosheet arrays containing dual active sites could achieve efficient CO2 reduction reaction toward ethanol. A new regulatory mechanism of the CO coupling reaction was proposed based on experimental results and DFT calculations.

Catalytic performance of Pdn (n = 1, 2, 3, 4 and 6) clusters supported on TiO2-V for the formation of dimethyl oxalate via the CO catalytic coupling reaction: a theoretical study

2020 ◽  
Vol 22 (8) ◽  
pp. 4549-4560 ◽  
Author(s):  
Lixia Ling ◽  
Yueting Cao ◽  
Min Han ◽  
Ping Liu ◽  
Riguang Zhang ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Dft Calculation ◽  
Theoretical Study ◽  
Coupling Reaction ◽  
Catalytic Performance ◽  
Functional Theory ◽  
Dimethyl Oxalate

The formation of dimethyl oxalate (DMO) via CO catalytic coupling on a series of catalysts including Pdn (n = 1, 2, 3, 4 and 6) clusters loaded on TiO2-V has been explored by density functional theory (DFT) calculation.

A Pd–Fe/α-Al2O3/cordierite monolithic catalyst for CO coupling to oxalate

2011 ◽  
Vol 66 (15) ◽  
pp. 3513-3522 ◽  
Author(s):  
Xiaochen Gao ◽  
Yujun Zhao ◽  
Shengping Wang ◽  
Yilin Yin ◽  
Baowei Wang ◽  
...  
Keyword(s):  
Monolithic Catalyst ◽  
Α Al2o3 ◽  
Co Coupling
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