Design of Water-Tolerant Solid Acids: A Trade-Off Between Hydrophobicity and Acid Strength and their Catalytic Performance in Esterification

2021 ◽  
Author(s):  
Juanli Shi ◽  
Lina Zhang ◽  
Zhenmin Cheng
Keyword(s):  
Catalytic Performance ◽  
Solid Acids ◽  
Acid Strength ◽  
Trade Off

scholarly journals Developing two-dimensional solid superacids with enhanced mass transport, extremely high acid strength and superior catalytic performance

2019 ◽  
Vol 10 (23) ◽  
pp. 5875-5883 ◽  
Author(s):  
Fujian Liu ◽  
Xianfeng Yi ◽  
Wei Chen ◽  
Zhiqiang Liu ◽  
Wei Chen ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Mass Transport ◽  
Biomass Conversion ◽  
Catalytic Performance ◽  
Acid Strength ◽  
Two Dimensional ◽  
Solid Superacids ◽  
High Acid ◽  
Transfer Properties

2D hybrid solid superacids with extremely high acid strength and outstanding mass transfer properties were prepared and exhibit superior activities for biomass conversion.

Transition metal ions regulate the catalytic performance of Ti0.8M0.2Ce0.2O2+x for the NH3-SCR of NO: the acidic mechanism

RSC Advances ◽  
2015 ◽  
Vol 5 (10) ◽  
pp. 7597-7603 ◽  
Author(s):  
Yuesong Shen ◽  
Yun Su ◽  
Yifan Ma
Keyword(s):  
Transition Metal Ions ◽  
Catalytic Performance ◽  
Acid Sites ◽  
Acid Strength ◽  
Maximum Activity ◽  
Lewis Acid Sites ◽  
Nh3 Scr ◽  
Scr Of No ◽  
Temperature Window ◽  
Active Temperature

The maximum activity is dependent on the number of Lewis acid sites, and the active temperature window is dependent on the acid strength.

Determination of relative acid strength and acid amount of solid acids by Ar adsorption

2006 ◽  
Vol 111 (3-4) ◽  
pp. 338-342 ◽  
Author(s):  
Hiromi Matsuhashi ◽  
Ayumi Futamura
Keyword(s):  
Solid Acids ◽  
Acid Strength ◽  
Acid Amount

Halloysite nanotubes based heterogeneous solid acid catalysts

2020 ◽  
Vol 44 (30) ◽  
pp. 12897-12908
Author(s):  
Aman Mahajan ◽  
Princy Gupta
Keyword(s):  
Acid Catalysis ◽  
Solid Acid ◽  
Catalytic Performance ◽  
Halloysite Nanotubes ◽  
Solid Acids ◽  
Review Article ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Heterogeneous Solid ◽  
Excellent Catalytic Performance

Taking into account the excellent catalytic performance of halloysite nanotubes, the main focus of this review article is to unveil the research on halloysite nanotubes for the preparation of solid acids and their applications in acid catalysis.

13C Chemical Shift of Adsorbed Acetone for Measuring the Acid Strength of Solid Acids: A Theoretical Calculation Study

2010 ◽  
Vol 114 (29) ◽  
pp. 12711-12718 ◽  
Author(s):  
Hanjun Fang ◽  
Anmin Zheng ◽  
Yueying Chu ◽  
Feng Deng
Keyword(s):  
Chemical Shift ◽  
Theoretical Calculation ◽  
Solid Acids ◽  
Acid Strength ◽  
13C Chemical Shift

Relationships Between Acidity and Catalytic Performance of Solid Acid in Synthesis of Linear Alkyl Benzene (LAB)

2011 ◽  
Vol 233-235 ◽  
pp. 1447-1450
Author(s):  
Jie Ren ◽  
Yin Shan Lou ◽  
Hai Kuan Yuan ◽  
Lian Shen
Keyword(s):  
Rate Constant ◽  
Solid Acid ◽  
Catalytic Performance ◽  
Acid Strength ◽  
Fixed Bed Reactor ◽  
Alkylation Reaction ◽  
Desorption Kinetics ◽  
Activation Temperature ◽  
Acid Amount ◽  
Kinetics Of

Through the benzene alkylation experiments with long chain olefin over solid acid catalysts activated at different temperature in the fixed-bed reactor, the kinetics of alkylation reaction and the deactivation kinetics of catalyst were established. The results showed that the activity and stability of catalyst decreased with increasing the activation temperature of catalysts. The reaction rate constant (k) and the deactivation rate constant (kd) of catalyst in kinetic models were also estimated through the optimization method, respectively. The acidity of catalyst was characterized by ammonia (NH3)-temperature programmed desorption (TPD), and the desorption kinetics of NH3was obtained. The characterization results showed that the acid amount or the acid density gradually decreased, while the desorption activation energy or the acid strength increased, as the activation temperature of catalyst increased. In addition, the relationships between the acidity and catalytic performance of catalysts were correlated. It was found that the catalyst with higher acid amount and the lower acid strength on the surface exhibited the better catalytic performance and stability.

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