Synthesis and spectroscopic study of mesoporous aluminum methylphosphonate foam templated by dibutyl methylphosphonate

Wu, Zongbin; Liu, Zhongmin; Tian, Peng; He, Yanli; Xu, Lei; Liu, Xiumei; Bao, Xinhe; Liu, Xianchun

doi:10.1016/s1387-1811(03)00393-7

Cited by 5 publications

(5 citation statements)

References 44 publications

(65 reference statements)

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“…These bands vanish completely at 673 K, indicating that DBMP has been removed thoroughly. The changes are similar as that in AMP [27]. It is interesting to note that the methyl group in the hybrid structure keeps intact up to 773 K under the characterizing condition, which indicates the good thermal stability of the hybrid structure.…”

Section: Zmpmi Obtained By Thermal Treatment Of Zmp Under Vacuumsupporting

confidence: 66%

“…A mixture of DBMP/ MPA (MPA, methylphosphonic acid) was prepared by the same process reported by us previously and designated as DMM [27]. Results of 1 H NMR, GC-MS and elemental analysis ensured that DMM possessed the same component ratio (MPA:DBMP = 1.3:1 in mole) as that used before.…”

Section: Methodsmentioning

confidence: 99%

“…The last one has similar unidimensional channels with phenyl groups arranged on the outer periphery of the isolated channels. The most remarkable feature of AlMepO-b, AlMepO-a and Co 2 (O 3 PCH 2 -PO 3 ) AE H 2 O is that their hybrid frameworks remain intact up to 723 K. More recently, we synthesized an aluminium methylphosphonate foam (named as AMPF) by using dibutyl methylphosphonates (DBMP) as the template [27]. The assembly of as-synthesized aluminum methylphosphonate and DBMP (designated as AMP) could be prepared conveniently at room temperature.…”

Section: Introductionmentioning

confidence: 99%

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Template-assisted syntheses of two novel porous zirconium methylphosphonates

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et al. 2005

Microporous and Mesoporous Materials

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Section: Zmpmi Obtained By Thermal Treatment Of Zmp Under Vacuumsupporting

confidence: 66%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Template-assisted syntheses of two novel porous zirconium methylphosphonates

Liu

Tian

et al. 2005

Microporous and Mesoporous Materials

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“…Since their inception, both polymorphs of AlMePO (α and β), prepared by different procedures, have been the subject of massive experimental and theoretical studies. ,,− These studies have driven to well-characterized and reproducible crystal structures. Moreover, these solids are among the most thoroughly structurally characterized microporous, hybrid organic−inorganic materials, by means of single-crystal X-ray structural analysis in conjunction with nuclear magnetic resonance (NMR) spectroscopy ( 31 P, 13 C, and multiple-quantum magic angle spinning (MQMAS) 27 Al spectra); ,,,, thermogravimetric−differential thermal analysis (TG−DTA); IR; and transmission electron microscopy (TEM) while water adsorption isotherms have been used to confirm the hydrophobic nature for both polymorphs .…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and Water Adsorption in Aluminum Methylphosphonate α: A Molecular Simulation Study

et al. 2006

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We present here Monte Carlo simulation and experimental results on the adsorption of nitrogen and water in aluminum methylphosphonate polymorph alpha (AlMePO-alpha). We have assumed a detailed atomic model for the material, using experimental information to construct the simulation cell. Nitrogen was modeled with two different approaches: as a simple Lennard-Jones (LJ) sphere with no charges, and as a diatomic molecule with charges explicitly included. Water was represented by the TIP4P model. Experimental adsorption isotherms were used to tune the proposed molecular model for the adsorbent. Simulated adsorption capacities were in agreement with the experimental results obtained for the studied systems. The influence of the surface model on the adsorption behavior was taken into account by considering different values of the surface methyl group size parameter. Our results corroborate the strong sensitivity of the simulation results to this parameter, as previously observed by Schumacher and co-workers. It is also observed that charged models are essential to accurately describe the low-pressure region of the adsorption isotherm, where the solid-fluid interaction rules the system behavior. However, a simple uncharged molecular model for nitrogen is able to describe the three loci arrangement at maximum loading. Experimental and simulation results presented here also confirm the low water affinity of AlMePO-alpha. These results enforce the application of this methodology to achieve quantitative predictions on similar systems, with the appropriate transferability of the molecular parameters.

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“…In particular, we investigate the selective capability of the material for ethyl chloride/vinyl chloride mixtures under different conditions with simulation tools once the model is validated. Several experimental efforts have been made in the field of structural characterization of AlMePOs; − however, there are still scarce theoretical studies of these materials . In recent work, we used GCMC simulations to tune a model for this material by fitting the adsorption isotherm of nitrogen to our measured experimental data .…”

Section: Introductionmentioning

confidence: 99%

Selective Adsorption of Volatile Organic Compounds in Micropore Aluminum Methylphosphonate-α: A Combined Molecular Simulation−Experimental Approach

et al. 2007

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Results concerning the adsorption capacity of aluminum methylphosphonate polymorph alpha (AlMePO-alpha) for pure ethyl chloride and vinyl chloride by measured individual adsorption isotherms of these pure compounds are presented and discussed here. The experimental data supports the idea of using these materials as selective adsorbents for separating these compounds in mixtures. To explore this possibility further, we have performed grand canonical Monte Carlo simulations using a recently proposed molecular simulation framework for gas adsorption on AlMePO, and the results are presented here. The molecular model of the material was used in a purely transferable manner from a previous work (Herdes, C.; Lin, Z.; Valente, A.; Coutinho, J. A. P.; Vega, L. F. Langmuir 2006, 22, 3097). Regarding the molecular model of the fluids, an existing model for ethyl chloride was improved to capture the experimental dipole value better; an equivalent force field for the vinyl chloride molecule was also developed for simulation purposes. Simulations of the pure compounds were found to be in excellent agreement with the measured experimental data at the three studied temperatures. Simulations were also carried out in a purely predictive manner as a tool to find the optimal conditions for the selective adsorption of these compounds prior experimental measurements are carried out. The influence of the temperature and the bulk composition on the adsorption selectivity was also investigated. Results support the use of AlMePO-alpha as an appropriate adsorbent for the purification process of vinyl chloride, upholding the selective adsorption of ethyl chloride.

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Synthesis and spectroscopic study of mesoporous aluminum methylphosphonate foam templated by dibutyl methylphosphonate

Cited by 5 publications

References 44 publications

Template-assisted syntheses of two novel porous zirconium methylphosphonates

Template-assisted syntheses of two novel porous zirconium methylphosphonates

Nitrogen and Water Adsorption in Aluminum Methylphosphonate α: A Molecular Simulation Study

Selective Adsorption of Volatile Organic Compounds in Micropore Aluminum Methylphosphonate-α: A Combined Molecular Simulation−Experimental Approach

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