Predicting Neopentane Isosteric Enthalpy of Adsorption at Zero Coverage in MCM-41

Langmuir ◽  
2011 ◽  
Vol 27 (11) ◽  
pp. 6738-6743 ◽  
Author(s):  
Carmelo Herdes ◽  
Carlos Augusto Ferreiro-Rangel ◽  
Tina Düren
Keyword(s):  
Enthalpy Of Adsorption ◽  
Isosteric Enthalpy Of Adsorption ◽  
Mcm 41

scholarly journals Anomalous Isosteric Enthalpy of Adsorption of Methane on Zeolite-Templated Carbon

2013 ◽  
Vol 135 (3) ◽  
pp. 990-993 ◽  
Author(s):  
Nicholas P. Stadie ◽  
Maxwell Murialdo ◽  
Channing C. Ahn ◽  
Brent Fultz
Keyword(s):  
Enthalpy Of Adsorption ◽  
Isosteric Enthalpy Of Adsorption ◽  
Adsorption Of Methane ◽  
Templated Carbon

scholarly journals Isosteric Enthalpy Behavior of CO2 Adsorption on Micro-Mesoporous Materials: Carbon Microfibers (CMFs), SBA-15, and Amine-Functionalized SBA-15

2021 ◽  
Vol 5 (4) ◽  
pp. 102
Author(s):  
Reyna Ojeda-López ◽  
Armando Domínguez-Ortiz ◽  
Carlos Felipe ◽  
A. Cervantes-Uribe ◽  
Isaac J. Pérez-Hermosillo ◽  
...  
Keyword(s):  
Mesoporous Materials ◽  
Mesoporous Material ◽  
Reference Value ◽  
Santa Barbara ◽  
Microporous Material ◽  
Clapeyron Equation ◽  
Enthalpy Of Adsorption ◽  
Amine Functionalized ◽  
Isosteric Enthalpy Of Adsorption ◽  
Carbon Microfibers

The isosteric enthalpy of adsorption (∆adsh ) of CO2 in three different micro and mesoporous materials was evaluated in this work. These materials were a microporous material with functional groups of nitrogen and oxygen (CMFs, carbon microfibers), a mesoporous material with silanol groups (SBA-15, Santa Barbara Amorphous), and a mesoporous material with amine groups (SBA-15_APTES, SBA-15 amine-functionalized with (3-Aminopropyl)-triethoxysilane). The temperature interval explored was between 263 K and 303 K, with a separation of 5 K between each one, so a total of nine CO2 isotherms were obtained. Using the nine isotherms and the Clausius–Clapeyron equation, the reference value for ∆adsh was found. The reference value was compared with those ∆adsh obtained, considering some arrangement of three or five CO2 isotherms. Finally, it was found that at 298 K and 1 bar, the total amount of CO2 adsorbed is 2.32, 0.53, and 1.37 mmol g−1 for CMF, SBA-15, and SBA-15_APTES, respectively. However, at a coverage of 0.38 mmol g−1, ∆adsh is worth 38, 30, and 29 KJ mol−1 for SBA-15_APTES, CMFs, and SBA-15, respectively. So, physisorption predominates in the case of CMF and SBA-15 materials, and the ∆adsh values significantly coincide regardless of whether the isotherms arrangement used was three or five. Meanwhile, in SBA-15_APTES, chemisorption predominates as a consequence of the arrangements used to obtain . This happens in such a way that the use of low temperatures (263–283 K) tends to produce higher ∆adsh values, while the use of high temperatures (283–303 K) decreases the ∆adsh values.

Adsorption Isotherms and Isosteric Enthalpy of Adsorption for Assorted Refrigerants on Activated Carbons

2012 ◽  
Vol 57 (10) ◽  
pp. 2766-2773 ◽  
Author(s):  
Wai Soong Loh ◽  
Azhar Bin Ismail ◽  
Baojuan Xi ◽  
Kim Choon Ng ◽  
Won Gee Chun
Keyword(s):  
Adsorption Isotherms ◽  
Activated Carbons ◽  
Enthalpy Of Adsorption ◽  
Isosteric Enthalpy Of Adsorption

The design and catalytic performance of molybdenum active sites on an MCM-41 framework for the aerobic oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran

2019 ◽  
Vol 9 (3) ◽  
pp. 811-821 ◽  
Author(s):  
Zhao-Meng Wang ◽  
Li-Juan Liu ◽  
Bo Xiang ◽  
Yue Wang ◽  
Ya-Jing Lyu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Active Sites ◽  
Aerobic Oxidation ◽  
Catalytic Performance ◽  
Mcm 41

The catalytic activity decreases as –(SiO)3Mo(OH)(O) > –(SiO)2Mo(O)2 > –(O)4–MoO.

Benzene confined in MCM-41 below its melting point : A proton NMR study

2000 ◽  
Vol 10 (PR7) ◽  
pp. Pr7-99-Pr7-102 ◽  
Author(s):  
G. Dosseh ◽  
D. Morineau ◽  
C. Alba-Simionesco
Keyword(s):  
Melting Point ◽  
Proton Nmr ◽  
Nmr Study ◽  
Mcm 41

A neutron scattering investigation of the structural properties of glassforming m-toluidine confined in MCM-41

2000 ◽  
Vol 10 (PR7) ◽  
pp. Pr7-95-Pr7-98 ◽  
Author(s):  
D. Morineau ◽  
F. Casas ◽  
C. Alba-Simionesco ◽  
A. Grosman ◽  
M.-C. Bellissent-Funel ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Structural Properties ◽  
Mcm 41

Conversion of Biomass-Derived Carbohydrates to Methyl Lactate Using Sn-MCM-41 and SnO2/SiO2

2013 ◽  
Vol 33 (10) ◽  
pp. 1696-1705
Author(s):  
Zhen LIU ◽  
Gang FENG ◽  
Chunyan PAN ◽  
Wang LI ◽  
Ping CHEN ◽  
...  
Keyword(s):  
Methyl Lactate ◽  
Mcm 41
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