journal article·2014-09

Microstructure of different chain length ionic liquids intercalated into montmorillonite: A molecular dynamics study

Limei Wu, Chengxue Yang, Lefu Mei, Faxiang Qin, Libing Liao, Guocheng Lv

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Abstract

Abstract This study employs molecular dynamics modeling to examine the interlayer microstructures of montmorillonite intercalated with different chains of C n mimCl montmorillonites with varying chain lengths, intercalation amount, arrangement and energy. C 4 mim + and C 8 mim + arrange themselves in monolayers, while C 12 mim + and C 16 mim + in parallel bilayers or tilt aligning. The basal spacing of montmorillonite and the corresponding energy increased as the chain length of organic cations is increased. It is indicated that no bond has been formed for N + O due to the minimum distances of no less than 3.1 A and angles of 35°–45° between N + in C n mim + and silicon–oxygen tetrahedron. These modeling results provide insights into the understanding of synthesized C n mim + -montmorillonite microstructure and guidelines for relevant engineering applications.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Clay minerals and soil interactions · Concrete and Cement Materials Research · Polymer Nanocomposites and Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (48)

Show source-provided references
1. Effect of total organic carbon content and structure on the electrokinetic behavior of organoclay suspensions10.1016/j.jcis.2009.11.009 ↗
2. Chapter 10 clays in industry10.1016/S1572-4352(05)01015-9 ↗
3. Baseline studies of the clay minerals society source clays: cation exchange capacity measurements by the ammonia-electrode method10.1346/CCMN.2001.0490510 ↗
4. Retention of radionuclides by organophilic bentonite10.1016/S0013-7952(99)00074-5 ↗
5. Coupled mechanical and chemical behavior of bentonite engineered with a controlled organic phase10.1061/(ASCE)1090-0241(2006)132:11(1404) ↗
6. Baseline studies of the clay minerals society source clays: powder X-ray diffraction analyses10.1346/CCMN.2001.0490507 ↗
7. Molecular models of hydroxide, oxyhydroxide, and clay phases and the development of a general force field10.1021/jp0363287 ↗
8. Temperature effects on iodine adsorption on organo-clay minerals: II. Structural effects10.1016/j.clay.2004.01.005 ↗
9. On the solid, liquid and solution structural organization of imidazolium ionic liquids10.1590/S0103-50532004000300002 ↗
10. Transition-metal nanoparticles in imidazolium ionic liquids: recyclable catalysts for biphasic hydrogenation reactions10.1021/ja025818u ↗
11. An infrared study of adsorption of paranitrophenol on mono-, di-and tri-alkyl surfactant intercalated organoclays10.1016/j.saa.2007.02.023 ↗
12. Conformational behavior of dodecyldiamine inside the confined space of montmorillonites10.1021/la0507277 ↗
13. Infrared study of HDTMA+ intercalated montmorillonite10.1016/j.saa.2003.09.028 ↗
14. Molecular simulation of the interlayer structure and the mobility of alkyl chains in HDTMA(+)/montmorillonite hybrids10.1021/jp0517495 ↗
15. Influence of cationic surfactant removal on the thermal stability of organoclays10.1016/j.jcis.2005.08.013 ↗
16. Structure and phase transitions of alkyl chains on mica10.1021/ja021248m ↗
17. Analysis of the phase transitions in alkyl-mica by density and pressure profiles10.1063/1.1642605 ↗
18. Self-assembly of alkylammonium chains on montmorillonite: effect of chain length, head group structure, and cation exchange capacity10.1021/cm062019s ↗
19. Monte Carlo study of the adsorption and aggregation of alkyltrimethylammonium chloride on the montmorillonite–water interface10.1021/la302658c ↗
20. Characterization of clays by organic-compounds10.1180/claymin.1981.016.1.01 ↗
21. Concentration-dependent conformation of alkyl tail in the nanoconfined space: hexadecylamine in the silicate galleries10.1021/la026481c ↗
22. Interlayer structure and dynamics of alkylammonium-intercalated smectites with and without water: a molecular dynamics study10.1346/CCMN.2007.0550602 ↗
23. Molecular dynamics insight into the cointercalation of hexadecyltrimethylammonium and acetate ions into smectites10.2138/am.2009.2887 ↗
24. Organoclay with soil–bentonite admixture as waste containment barriers10.1061/(ASCE)0733-9372(2001)127:8(756) ↗
25. Hydraulic conductivities and effective diffusion coefficients of geosynthetic clay liners with organobentonite amendments10.1016/j.geotexmem.2005.02.002 ↗
26. Bioreactors based on monolith-supported ionic liquid phase for enzyme catalysis in supercritical carbon dioxide10.1002/adsc.200600554 ↗
27. Supported ionic liquid catalysis10.1002/chem.200400683 ↗
28. Cetylpyridinium aggregates at the montmorillonite– and muscovite–water interfaces: a Monte Carlo study of surface charge effect10.1021/la804311w ↗
29. Baseline studies of the clay minerals society source clays: layer-charge determination and characteristics of those minerals containing 2:1 layers10.1346/CCMN.2001.0490506 ↗
30. Structure and properties of alkylammonium monolayers self-assembled on montmorillonite platelets10.1021/jp0366769 ↗
31. Physico-chemical characterizations of Tunisian organophilic bentonites10.1021/jp068814a ↗
32. Partitioning of 3 nonionic organic compound between adsorbed surfactants, micelles, and water10.1021/es00048a038 ↗
33. Organoclay sorption of benzene as a function of total organic carbon content10.1006/jcis.2001.8205 ↗
34. Supported ionic liquids: versatile reaction and separation media10.1007/s11244-006-0111-9 ↗
35. Determination of diffusive transport in HDPy-montmorillonite by H2O–D2O exchange using in situ ATR-FTIR spectroscopy10.1180/claymin.2009.044.2.249 ↗
36. Relation of water and neutral organic compounds in the interlayers of mixed Ca/trimethylphenylammonium-smectites10.1346/CCMN.1998.0460102 ↗
37. Monte-Carlo simulation of interlayer molecular-structure in swelling clay-minerals. 1. Methodology10.1346/CCMN.1995.0430303 ↗
38. Monte-Carlo simulation of interlayer molecular-structure in swelling clay-minerals. 2. Monolayer hydrates10.1346/CCMN.1995.0430304 ↗
39. Adsorptive selectivity of organic-cation modified bentonite for nonionic organic contaminants10.1007/BF01257125 ↗
40. Effects of organic cation structure on behavior of organobentonites10.1061/(ASCE)1090-0241(2001)127:4(363) ↗
41. Structural characterization of surfactant and clay-surfactant films of micrometer thickness by FT-IR spectroscopy10.1021/la00036a048 ↗
42. Interlayer structure and molecular environment of alkylammonium layered silicates10.1021/cm00043a025 ↗
43. Conformation of methylene chains in an intercalated surfactant bilayer10.1021/jp002505h ↗
44. Characterization of alkyl chain conformation in an intercalated cationic lipid bilayer by IR spectroscopy10.1021/jp025743g ↗
45. Arrangement, conformation, and mobility of surfactant molecules intercalated in montmorillonite prepared at different pillaring reagent concentrations as studied by solid-state NMR spectroscopy10.1016/j.jcis.2006.02.046 ↗
46. Modification of Wyoming montmorillonite surfaces using a cationic surfactant10.1021/la051454i ↗
47. Infrared spectroscopy of organoclays synthesized with the surfactant octadecyltrimethylammonium bromide10.1016/j.saa.2004.05.001 ↗
48. Characterization of organic phases in the interlayer of montmorillonite using FTIR and C-13 NMR10.1016/j.jcis.2004.12.048 ↗