scholarly journals Structure–properties relationship in the hydronium-containing pyrochlores (H3O)1+pSb1+pTe1−pO6 with catalytic activity in the fructose dehydration reaction

2020 ◽  
Vol 49 (33) ◽  
pp. 11657-11667
Author(s):  
Sergio Federico Mayer ◽  
Horacio Falcón ◽  
María Teresa Fernández-Díaz ◽  
José Miguel Campos-Martín ◽  
José Antonio Alonso
Keyword(s):  
Catalytic Activity ◽  
Accurate Description ◽  
Dehydration Reaction ◽  
Fructose Dehydration ◽  
Structure Properties

NPD refinement for an accurate description of the pyrochlore family with progressive H3O+ lability, and its kinetics for fructose to HMF conversion.

Structure/Properties Relationship for Bis(phenoxyamine)Zr(IV)-Based Olefin Polymerization Catalysts: A Simple DFT Model To Predict Catalytic Activity

2012 ◽  
Vol 45 (10) ◽  
pp. 4046-4053 ◽  
Author(s):  
Gianluca Ciancaleoni ◽  
Natascia Fraldi ◽  
Roberta Cipullo ◽  
Vincenzo Busico ◽  
Alceo Macchioni ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Olefin Polymerization ◽  
Polymerization Catalysts ◽  
Dft Model ◽  
Structure Properties

Mesoporous tantalum phosphates: preparation, acidity and catalytic performance for xylose dehydration to produce furfural

RSC Advances ◽  
2016 ◽  
Vol 6 (64) ◽  
pp. 59081-59090 ◽  
Author(s):  
Yanran Xing ◽  
Bo Yan ◽  
Zifei Yuan ◽  
Keqiang Sun
Keyword(s):  
Catalytic Activity ◽  
Catalytic Performance ◽  
Dehydration Reaction ◽  
Molar Ratios

Mesoporous tantalum phosphates with varying P/Ta molar ratios were prepared and their catalytic activity were studied in the xylose dehydration reaction.

Fructose dehydration reaction over functionalized nanographitic catalysts in MIBK/H2O biphasic system

2020 ◽  
Author(s):  
Gabriel Delgado Martin ◽  
Charf Eddine Bounoukta ◽  
Fatima Ammari ◽  
María Isabel Domínguez ◽  
Antonio Monzón ◽  
...  
Keyword(s):  
Biphasic System ◽  
Dehydration Reaction ◽  
Fructose Dehydration

scholarly journals Effect of Mo-Doped Mesoporous Al-SSP Catalysts for the Catalytic Dehydration of Ethanol to Ethylene

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Titinan Chanchuey ◽  
Chaowat Autthanit ◽  
Bunjerd Jongsomjit
Keyword(s):  
Catalytic Activity ◽  
Gas Phase ◽  
Sol Gel ◽  
Acid Sites ◽  
Weak Acid ◽  
Acid Property ◽  
Dehydration Reaction ◽  
Ethanol Dehydration ◽  
High Concentration ◽  
Catalytic Activities

The catalytic dehydration of ethanol to ethylene over the mesoporous Al-SSP and Mo-doped Al-SSP catalysts was investigated. The Al-SSP catalyst was first synthesized by the modified sol-gel method and then doped with Mo by impregnation to obtain 1% Mo/Al-SSP and 5% Mo/Al-SSP catalysts (1 and 5 wt% of Mo). The final catalysts were characterized using various techniques such as XRD, N2physisorption, SEM/EDX, TEM, and NH3-TPD. The catalytic activity for all catalysts in gas-phase ethanol dehydration reaction was determined at temperature range of 200°C to 400°C. It was found that the most crucial factor influencing the catalytic activities appears to be the acidity. The acid property of catalysts depended on the amount of Mo loading. Increased Mo loading in Al-SSP resulted in increased weak acid sites, which enhanced the catalytic activity. Besides acidity, the high concentration of Al at surface of catalyst is also essential to obtain high activity. Based on the results, the most suitable catalyst in this study is 1% Mo/Al-SSP catalyst, which can produce ethylene yield of ca. 90% at 300°C with slight amounts of diethyl ether (DEE) and acetaldehyde.

Carbonaceous microspheres prepared by hydrothermal carbonization of glucose for direct use in catalytic dehydration of fructose

RSC Advances ◽  
2015 ◽  
Vol 5 (23) ◽  
pp. 17526-17531 ◽  
Author(s):  
Xinhua Qi ◽  
Nian Liu ◽  
Youfen Lian
Keyword(s):  
Catalytic Activity ◽  
Carbonaceous Material ◽  
Hydrothermal Carbonization ◽  
Good Catalytic Activity ◽  
Post Modification ◽  
Fructose Dehydration ◽  
Direct Use

Carbonaceous material prepared from the hydrothermal carbonization of glucose was used directly without any in situ functionalization or post-modification, and exhibited good catalytic activity for fructose dehydration to 5-hydroxymethylfurfural.

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