scholarly journals Differential heat of adsorption of ammonia on hydrothermally treated solid acid catalysts and their catalytic activity.

1979 ◽  
Vol 22 (2) ◽  
pp. 67-72 ◽  
Author(s):  
Tatsuo MASUDA ◽  
Hitofumi TANIGUCHI ◽  
Kazuo TSUTSUMI ◽  
Hiroshi TAKAHASHI
Keyword(s):  
Catalytic Activity ◽  
Solid Acid ◽  
Heat Of Adsorption ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Differential Heat ◽  
Differential Heat Of Adsorption

Preparation of Strong Acid Catalysts by Sulfate Treatment of Calcined Boehmite

1992 ◽  
Vol 57 (11) ◽  
pp. 2241-2247 ◽  
Author(s):  
Tomáš Hochmann ◽  
Karel Setínek
Keyword(s):  
Catalytic Activity ◽  
Surface Area ◽  
Aluminum Sulfate ◽  
Solid Acid ◽  
Strong Acid ◽  
Acid Strength ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Preparation Methods ◽  
Indicator Method

Solid acid catalysts with acid strength of -14.52 < H0 < -8.2 were prepared by sulfate treatment of the samples of boehmite calcined at 105-800 °C. Two preparation methods were used: impregnation of the calcined boehmite with 3.5 M H2SO4 or mixing of the boehmite samples with anhydrous aluminum sulfate, in both cases followed by calcination in nitrogen at 650 °C. The catalysts were characterized by measurements of surface area, adsorption of pyridine and benzene, acid strength measurements by the indicator method and by catalytic activity tests in the isomerization of cyclohexene, p-xylene and n-hexane. Properties of the catalysts prepared by both methods were comparable.

Fabrication of mesoporous solid acid catalysts with tunable surface wettability for efficient catalysis

2016 ◽  
Vol 40 (5) ◽  
pp. 4775-4780 ◽  
Author(s):  
Juan Wei ◽  
Like Zou ◽  
Jianzhang Li
Keyword(s):  
Catalytic Activity ◽  
Solid Acid ◽  
Surface Wettability ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Hydrophobic Surfaces

Mesoporous solid acid catalysts with tunable surface wettability were fabricated successfully and hydrophobic surfaces are beneficial for catalytic activity.

Preparation and Characterization of SO42-/Fe-Al-Activated Solid Acid Catalyst

2017 ◽  
Vol 727 ◽  
pp. 438-444
Author(s):  
Xiang Ying Hao ◽  
Yu Li Zhang ◽  
Guan Hua Shen ◽  
Wen Sheng Wu
Keyword(s):  
Catalytic Activity ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Ftir Spectra ◽  
Solid Acid Catalysts ◽  
Cross Linking ◽  
Acid Catalysts

SO42-/ Al-Fe-activated solid acid catalysts had been prepared in different conditions using cross-linking method, and characterized by XRD, BET, FTIR spectra and TG-DTA. The catalyst performed highly catalytic activity in the hydration of turpentine to α-terpineol.

Polyvinyl trisulfonate ethylamine based solid acid catalyst for the efficient glycosylation of sugars under solvent free conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (127) ◽  
pp. 104715-104724 ◽  
Author(s):  
Avinash A. Chaugule ◽  
Amol R. Jadhav ◽  
Hern Kim
Keyword(s):  
Catalytic Activity ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Solvent Free ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Solvent Free Conditions ◽  
Acid Catalyzed

We have synthesized Brønsted solid acid catalysts which exhibited effective catalytic activity for acid catalyzed glycosylation reactions.

Synthesis and Characterisation of Ordered Mesoporous Acid Catalysts for Synthesis of Biodegradable Surfactants

2003 ◽  
Vol 68 (10) ◽  
pp. 1914-1926 ◽  
Author(s):  
Marcelo Boveri ◽  
Javier Agúndez ◽  
Isabel Díaz ◽  
Joaquín Pérez-Pariente ◽  
Enrique Sastre
Keyword(s):  
Catalytic Activity ◽  
Hydrothermal Synthesis ◽  
Stearic Acid ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Synthesis Time ◽  
Ordered Mesoporous ◽  
Glycerol Esterification ◽  
Mcm 41

Solid acid catalysts based on -SO3H-grafted MCM-41 mesoporous silica were prepared as catalysts for the synthesis of biodegradable surfactants leading reactions. The influence of hydrothermal synthesis time on properties of the mesoporous matrix and catalytic activity and selectivity of the catalysts in the stearic acid-glycerol esterification were studied.

scholarly journals Metal–Organic Framework-Based Solid Acid Materials for Biomass Upgrade

2021 ◽  
Author(s):  
Yutian Qin ◽  
Jun Guo ◽  
Meiting Zhao
Keyword(s):  
High Efficiency ◽  
Solid Acid ◽  
Metal Organic Framework ◽  
Acid Sites ◽  
Solid Acid Catalysts ◽  
Future Research ◽  
Acid Catalysts ◽  
Metal Organic ◽  
Biomass Transformation ◽  
Organic Framework

AbstractBiomass is a green and producible source of energy and chemicals. Hence, developing high-efficiency catalysts for biomass utilization and transformation is urgently demanded. Metal–organic framework (MOF)-based solid acid materials have been considered as promising catalysts in biomass transformation. In this review, we first introduce the genre of Lewis acid and Brønsted acid sites commonly generated in MOFs or MOF-based composites. Then, the methods for the generation and adjustment of corresponding acid sites are overviewed. Next, the catalytic applications of MOF-based solid acid materials in various biomass transformation reactions are summarized and discussed. Furthermore, based on our personal insights, the challenges and outlook on the future development of MOF-based solid acid catalysts are provided. We hope that this review will provide an instructive roadmap for future research on MOFs and MOF-based composites for biomass transformation.

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