Fe–Zr–O catalyzed base-free aerobic oxidation of 5-HMF to 2,5-FDCA as a bio-based polyester monomer

2018 ◽  
Vol 8 (1) ◽  
pp. 164-175 ◽  
Author(s):  
Dongxia Yan ◽  
Jiayu Xin ◽  
Qiu Zhao ◽  
Kai Gao ◽  
Xingmei Lu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Aerobic Oxidation ◽  
Reaction System ◽  
Environment Friendly ◽  
Furandicarboxylic Acid

An environment-friendly and economical route for 5-hydroxymethylfurfural (HMF) aerobic oxidation to 2,5-furandicarboxylic acid (FDCA) in an ionic liquid (IL)-promoted base-free reaction system was reported using Fe–Zr–O as a catalyst.

Hydrophilic mesoporous poly(ionic liquid)-supported Au–Pd alloy nanoparticles towards aerobic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid under mild conditions

2017 ◽  
Vol 19 (16) ◽  
pp. 3820-3830 ◽  
Author(s):  
Qian Wang ◽  
Wei Hou ◽  
Shuai Li ◽  
Jingyan Xie ◽  
Jing Li ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Activity ◽  
Aerobic Oxidation ◽  
Alloy Nanoparticles ◽  
Mild Conditions ◽  
Pd Alloy ◽  
Furandicarboxylic Acid ◽  
Poly Ionic Liquid

Au–Pd nanoalloy in hydrophilic mesoporous poly(ionic liquid) shows high activity for oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid with atmospheric O2.

scholarly journals Ionic Liquids as Bifunctional Cosolvents Enhanced CO2 Conversion Catalysed by NADH-Dependent Formate Dehydrogenase

Catalysts ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 304 ◽  
Author(s):  
Zhibo Zhang ◽  
Bao-hua Xu ◽  
Jianquan Luo ◽  
Nicolas Solms ◽  
Hongyan He ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Dft Calculations ◽  
Formic Acid ◽  
Formate Dehydrogenase ◽  
Enzymatic Reaction ◽  
Reaction System ◽  
Co2 Concentration ◽  
Co2 Conversion ◽  
Low Co2

Efficient CO2 conversion by formate dehydrogenase is limited by the low CO2 concentrations that can be reached in traditional buffers. The use of ionic liquids was proposed as a manner to increase CO2 concentration in the reaction system. It has been found, however, that the required cofactor (NADH) heavily degraded during the enzymatic reaction and that acidity was the main reason. Acidity, indeed, resulted in reduction of the conversion of CO2 into formic acid and contributed to overestimate the amount of formic acid produced when the progression of the reaction was followed by a decrease in NADH absorbance (method N). Stability of NADH and the mechanism of NADH degradation was investigated by UV, NMR and by DFT calculations. It was found that by selecting neutral–basic ionic liquids and by adjusting the concentration of the ionic liquid in the buffer, the concentration of NADH can be maintained in the reaction system with little loss. Conversion of CO2 to methanol in BmimBF4 (67.1%) was more than twice as compared with the conversion attained by the enzymatic reaction in phosphate buffer (24.3%).

Aerobic Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxylic Acid over Holey 2 D Mn 2 O 3 Nanoflakes from a Mn‐based MOF

ChemSusChem ◽  
2019 ◽  
Vol 13 (3) ◽  
pp. 548-555 ◽  
Author(s):  
Liwei Bao ◽  
Fang‐Zhou Sun ◽  
Guo‐Ying Zhang ◽  
Tong‐Liang Hu
Keyword(s):  
Aerobic Oxidation ◽  
Furandicarboxylic Acid

Ionic Liquid-Modified Co/ZSM-5 Catalyzed the Aerobic Oxidation of Cyclohexane: Toward Improving the Activity and Selectivity

2019 ◽  
Vol 58 (43) ◽  
pp. 19832-19838 ◽  
Author(s):  
Yun Hong ◽  
Yanxiong Fang ◽  
Xiantai Zhou ◽  
Ge Du ◽  
Jijing Mai ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Aerobic Oxidation
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