scholarly journals Factors Determining Microporous Material Stability in Water: The Curious Case of SAPO-37

2020 ◽  
Vol 32 (4) ◽  
pp. 1495-1505 ◽  
Author(s):  
Georgios N. Kalantzopoulos ◽  
Fredrik Lundvall ◽  
Knut Thorshaug ◽  
Anna Lind ◽  
Ponniah Vajeeston ◽  
...  
Author(s):  
Alison Forrestal

Chapter 2 provides a narrative account of Vincent de Paul’s activities between 1612 and 1617. It concentrates on new connections with prominent dévots in Paris, whose sponsorship provided him with opportunities for material stability and for the expansion of his rather limited pastoral experience. These included his patron employers, the high noble Gondi family, and Pierre de Bérulle, founder of the French Oratory, and founding figure of the French School of Spirituality. The appointments that resulted from these contacts were a preceptorship in the Gondi household, followed by a role as spiritual director to Madame de Gondi, and two sojourns as curé of the parishes of Clichy and Châtillon-lès-Dombes.


Author(s):  
Li Jiang ◽  
Huihuang Huang ◽  
Fubing Gui ◽  
Yalun Xu ◽  
Qianqian Lin

Recent years, AgBiS2 has received great attention in optoelectronics thanks to the fascinated merits, including suitable bandgap, large absorption coefficient from ultra-violet to near-infrared and remarkable material stability. However, the...


Author(s):  
Lorena Alcaraz ◽  
María Esther Escudero ◽  
Francisco J. Alguacil ◽  
Irene Llorente ◽  
Ana Urbieta ◽  
...  

This paper describes the physico-chemical study of the adsorption of dysprosium (Dy3+) in aqueous solution onto two types of activated carbons synthesized from spent coffee ground. KOH activated carbon is a microporous material with a specific BET surface area of 2330 m2·g-1 and pores with a diameter of 3.2 nm. Carbon activated with water vapor and N2 is a solid mesoporous, with pores of 5.7 nm in diameter and a specific surface of 982 m2·g-1. A significant dependence of the adsorption capacity on the solution pH was found, while it does not depend significantly neither on the dysprosium concentration nor on the temperature. A maximum adsorption capacity of 31.26 mg·g-1 and 33.52 mg·g-1 for the chemically and physically activated carbons, respectively, were found. In both cases, the results obtained from adsorption isotherms and kinetic study were better fit to a Langmuir model and a pseudo-second-order kinetics. In addition, thermodynamic results indicate that dysprosium adsorption onto both activated carbons is an exothermic, spontaneous and favorable process.


2020 ◽  
Author(s):  
Jeremy Trageser ◽  
Pablo Seleson
Keyword(s):  

1998 ◽  
Vol 527 ◽  
Author(s):  
G. Sastre ◽  
A. Corma ◽  
C. R. A. Catlow

ABSTRACTAtomistic Molecular Dynamics are used to simulate diffusion of hydrocarbons inside the microporous structure of siliceous zeolite CIT-I, with chemical composition SiO2. CIT-1 is a crystalline microporous material containing channels formed by rings containing 12 and 10 Si atoms (Figure 1). The dimensions of these two channel systems are sufficient to cause substantial differences in the diffusion of para-xylene and ortho-xylene. Diffusion coefficients as a function of loading of each isomer, and activation energies have been calculated from the simulations. The effect of the isomer size in the diffusion path is also analysed.


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