Construction of Cu-Ce composite oxides by simultaneous ammonia evaporation method to enhance catalytic performance of Ce-Cu/SiO2 catalysts for dimethyl oxalate hydrogenation

Fuel ◽  
2021 ◽  
Vol 290 ◽  
pp. 120083
Author(s):  
Chong-Chong Chen ◽  
Ling Lin ◽  
Run-Ping Ye ◽  
Long Huang ◽  
Ling-Bin Zhu ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Evaporation Method ◽  
Dimethyl Oxalate ◽  
Composite Oxides

Shape- and size-controlled synthesis of Cu nanoparticles wrapped on RGO nanosheet catalyst and their outstanding stability and catalytic performance in the hydrogenation reaction of dimethyl oxalate

2018 ◽  
Vol 6 (39) ◽  
pp. 19133-19142 ◽  
Author(s):  
Mohamed Abbas ◽  
Zheng Chen ◽  
Jiangang Chen
Keyword(s):  
Catalytic Performance ◽  
Hydrogenation Reaction ◽  
Controlled Synthesis ◽  
Cu Nanoparticles ◽  
Dimethyl Oxalate ◽  
Size Controlled ◽  
Shape And Size

A novel sonochemical approach was developed for the synthesis of morphology-controlled Cu NPs wrapped on RGO NSs catalysts and their superior stability and catalytic performance in dimethyl oxalate hydrogenation reaction.

An efficient Cu-based catalyst for the hydrogenation of ethylene carbonate to ethylene glycol and methanol

2019 ◽  
Vol 9 (23) ◽  
pp. 6749-6759 ◽  
Author(s):  
Wei Chen ◽  
Tongyang Song ◽  
Jingxia Tian ◽  
Peng Wu ◽  
Xiaohong Li
Keyword(s):  
Ethylene Glycol ◽  
Ethylene Carbonate ◽  
Catalytic Performance ◽  
Evaporation Method ◽  
Hydrogenation Of Ethylene

The Cu/SiO2 catalyst prepared by the ammonia-evaporation method and further modified with glucose showed greatly enhanced catalytic performance and stability.

Sonochemical engineering of highly efficient and robust Au nanoparticle-wrapped on Fe/ZrO2 nanorods and their controllable product selectivity in dimethyl oxalate hydrogenation

2020 ◽  
Vol 10 (4) ◽  
pp. 1125-1134 ◽  
Author(s):  
Mohamed Abbas ◽  
Juan Zhang ◽  
Jiangang Chen
Keyword(s):  
Catalytic Performance ◽  
Au Nanoparticle ◽  
Product Selectivity ◽  
Dimethyl Oxalate ◽  
Highly Efficient

A facile sonochemical approach is adopted for the synthesis of Fe/ZrO2 and Au decorated Fe/ZrO2 NRs catalysts and their outstanding stability and catalytic performance for the synthesis of EtOH and MG from DMO hydrogenation were reported.

scholarly journals Synthesis and characterization of some nanostructured composite oxides for low temperature catalytic combustion of dilute propane

RSC Advances ◽  
2017 ◽  
Vol 7 (45) ◽  
pp. 27863-27871 ◽  
Author(s):  
C. Doroftei ◽  
L. Leontie
Keyword(s):  
Low Temperatures ◽  
Catalytic Combustion ◽  
Sol Gel ◽  
Catalytic Performance ◽  
Synthesis And Characterization ◽  
Propane Combustion ◽  
Nanostructured Composite ◽  
Composite Oxides ◽  
Combustion Technique

Five nanosized perovskite and four ferrospinel powders were prepared by sol–gel self-combustion technique. The La0.6Pb0.2Mg0.2MnO3 perovskite was found to exhibit the best catalytic performance with respect to propane combustion at low temperatures.

Decomposition of Energetic Ionic Liquid Over IrCu/Honeycomb Catalysts

2020 ◽  
Vol 20 (11) ◽  
pp. 7065-7069
Author(s):  
Jaegyu Woo ◽  
Dalsan Yoo ◽  
Seolyeong Oh ◽  
Jong-Ki Jeon
Keyword(s):  
Catalytic Performance ◽  
Decomposition Temperature ◽  
Coating Process ◽  
Hydroxylammonium Nitrate ◽  
Composite Oxides ◽  
Active Metal ◽  
Coating Procedure ◽  
Cordierite Honeycomb ◽  
Copper Composite ◽  
Loading Procedure

The objective of this study is to elucidate the influence of a loading procedure of iridium and copper oxides over cordierite honeycomb support on catalytic performance during the decomposition of a hydroxylammonium nitrate (HAN) solution. Iridium and copper composite oxides were successfully supported on the cordierite honeycomb at the same time by repeating the wash coating process more than 2 times. Through the wash coating process, Cu and Ir were supported up to 43.4% and 4.9%, respectively. The cordierite honeycomb without active metal plays little role as a catalyst to lower the decomposition temperature. It was found that IrCu/honeycomb-2 catalyst, which was prepared by repeating the wash coating procedure twice, is an optimal catalyst for the decomposition of HAN solution. The IrCu/honeycomb-2 catalyst had the effect of lowering the decomposition onset temperature by 27.1°C compared to thermal decomposition.

scholarly journals Silver nanoparticles confined in carbon nanotubes: on the understanding of the confinement effect and promotional catalysis for the selective hydrogenation of dimethyl oxalate

Nanoscale ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 5959-5967 ◽  
Author(s):  
Jianwei Zheng ◽  
Xinping Duan ◽  
Haiqiang Lin ◽  
Zhengqiang Gu ◽  
Huihuang Fang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Silver Nanoparticles ◽  
Selective Hydrogenation ◽  
Ag Nanoparticles ◽  
Catalytic Performance ◽  
Confinement Effect ◽  
Dimethyl Oxalate

Carbon nanotubes induce confinement of Ag nanoparticles which show superior catalytic performance for hydrogenation of dimethyl oxalate.

Remarkable crystal phase effect of Cu/TiO2catalysts on the selective hydrogenation of dimethyl oxalate

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29040-29047 ◽  
Author(s):  
Bin Wang ◽  
Chao Wen ◽  
Yuanyuan Cui ◽  
Xi Chen ◽  
Yu Dong ◽  
...  
Keyword(s):  
Catalytic Hydrogenation ◽  
Selective Hydrogenation ◽  
Catalytic Performance ◽  
Crystal Phase ◽  
Phase Effect ◽  
Dimethyl Oxalate ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Titania Support

Crystal phase of titania support plays an important role in catalytic hydrogenation of dimethyl oxalate. Optimized catalytic performance was achieved for the Cu/P25 due to the intimate metal support interaction.

Copper-Fiber-Structured Pd-Au-CuO x : Preparation and Catalytic Performance in the Vapor-Phase Hydrogenation of Dimethyl Oxalate to Ethylene Glycol

ChemCatChem ◽  
2016 ◽  
Vol 8 (6) ◽  
pp. 1065-1073 ◽  
Author(s):  
Lupeng Han ◽  
Li Zhang ◽  
Guofeng Zhao ◽  
Yanfei Chen ◽  
Qiaofei Zhang ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Vapor Phase ◽  
Catalytic Performance ◽  
Dimethyl Oxalate

Preparation and Ultra-Deep Hydrorefining Performance of Ni-P/Al2O3-ZrO2 Catalysts

2011 ◽  
Vol 236-238 ◽  
pp. 724-727
Author(s):  
Feng Li ◽  
Hua Song ◽  
Hua Yang Zhang
Keyword(s):  
Chemical Precipitation ◽  
Catalytic Performance ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Molar Ratios ◽  
Thiophene Hydrodesulfurization ◽  
Composite Oxides ◽  
Temperature Programmed ◽  
Supported Ni

A series of Al2O3-ZrO2 (AZ-X) composite oxides with different ZrO2 contents were prepared by a chemical precipitation method. Ni-P/AZ-X catalysts were prepared by temperature-programmed reduction. The supports and catalysts were extensively characterized by X-ray diffraction (XRD) and BET. The effects of support composition and P/Ni molar ratios on the catalytic performance of the catalysts were investigated by thiophene hydrodesulfurization (HDS) and pyridine hydrodenitrogenation (HDN). In comparison with Al2O3, Al2O3-ZrO2 (20 wt% ZrO2) composite oxide supported Ni-P catalyst exhibited higher activity and the activities of HDS and HDN increased by 7.5 % and 11.1 %, respectively. Studies of Ni-P/AZ-X catalysts with varying initial P/Ni molar ratios indicated that oxidic precursors with molar ratios of P/Ni = 2/1 yielded catalyst containing phase-pure Ni2P which exhibited optimal activity.

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