Dehydrative etherification of carbohydrates to 5-ethoxymethylfurfural over SBA-15-supported Sn-modified heteropolysilicate catalysts

2020 ◽  
Vol 4 (7) ◽  
pp. 3428-3437
Author(s):  
B. Srinivasa Rao ◽  
D. Dhana Lakshmi ◽  
P. Krishna Kumari ◽  
P. Rajitha ◽  
N. Lingaiah
Keyword(s):  
Lewis Acidity ◽  
Brønsted And Lewis Acidity

Introduction of Sn into heteropoly silicate led to generate Lewis acidity. Conversion of carbohydrates to EMF requires both Brønsted and Lewis acidity to yield more EMF. The activity increased with increase in Lewis acidity of the Sn0.75STA/SBA-15 catalysts.

Heteropoly acid and ZrO2 bifunctionalized organosilica hollow nanospheres for esterification and transesterification

2014 ◽  
Vol 2 (34) ◽  
pp. 14127-14138 ◽  
Author(s):  
Fang Su ◽  
Sai An ◽  
Daiyu Song ◽  
Xianghuan Zhang ◽  
Bo Lu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Heteropoly Acid ◽  
Surface Hydrophobicity ◽  
Lewis Acidity ◽  
Hollow Nanospheres ◽  
Brønsted And Lewis Acidity ◽  
Enhanced Surface

H3PW12O40/ZrO2-Et-HNS materials with strong Brönsted and Lewis acidity, unique hollow nanospherical morphology and enhanced surface hydrophobicity exihibit excellent catalytic activity.

Facile and benign conversion of sucrose to fructose using zeolites with balanced Brønsted and Lewis acidity

2017 ◽  
Vol 7 (13) ◽  
pp. 2782-2788 ◽  
Author(s):  
Shunmugavel Saravanamurugan ◽  
Irene Tosi ◽  
Kristoffer H. Rasmussen ◽  
Rasmus E. Jensen ◽  
Esben Taarning ◽  
...  
Keyword(s):  
Lewis Acidity ◽  
High Yield ◽  
Step Process ◽  
Brønsted And Lewis Acidity

A simple and robust two-step process with zeolites as catalysts converts sucrose in high yield into the versatile monosaccharide fructose.

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