G. Maurin

A comparison of barostats for the mechanical characterization of metal-organic frameworks

S.M.J. Rogge, L. Vanduyfhuys, A. Ghysels, M. Waroquier, T. Verstraelen, G. Maurin, V. Van Speybroeck
Journal of Chemical Theory and Computation (JCTC)
11 (12), 5583-5597
2015
A1

Abstract 

In this paper, three barostat coupling schemes for pressure control, which are commonly used in molecular dynamics simulations, are critically compared to characterise the rigid MOF-5 and the flexible MIL-53(Al) metal-organic frameworks. We investigate the performance of the three barostats, the Berendsen, the Martyna-Tuckerman-Tobias-Klein (MTTK) and the Langevin coupling methods, in reproducing the cell parameters and the pressure versus volume behaviour in isothermal-isobaric simulations. A thermodynamic integration method is used to construct the free energy profiles as a function of volume at finite temperature. It is observed that the aforementioned static properties are well reproduced with the three barostats. However, for static properties depending nonlinearly on the pressure, the Berendsen barostat might give deviating results as it suppresses pressure fluctuations more drastically. Finally, dynamic properties, which are directly related to the fluctuations of the cell, such as the time to transition from the large-pore to the closed-pore phase, cannot be well reproduced by any of the coupling schemes.

Metal-organic frameworks as potential shock absorbers: the case of the highly flexible MIL-53(Al)

P.G. Yot, Z. Boudene, J. Macia, D. Granier, L. Vanduyfhuys, T. Verstraelen, V. Van Speybroeck, T. Devic, C. Serre, G. Ferey, N. Stock, G. Maurin
Chemical Communications
50, 9462-9464
2014
A1

Abstract 

The mechanical energy absorption ability of the highly flexible; MIL-53(Al) MOF material was explored using a combination of; experiments and molecular simulations. A pressure-induced transition; between the large pore and the closed pore forms of this solid; was revealed to be irreversible and associated with a relatively large; energy absorption capacity. Both features make MIL-53(Al) the first; potential MOF candidate for further use as a shock absorber.

Open Access version available at UGent repository

Towards modeling long-range disorder in MOFs: Development of a computational toolbox to extend the length scale in molecular simulations

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Hybrid Materials Group
Cambridge, United Kingdom
Wednesday, 21 August, 2019

Towards modeling long-range disorder in MOFs: Development of a computational toolbox to extend the length scale in molecular simulations

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The Grey Group
Cambridge, United Kingdom
Tuesday, 20 August, 2019

Towards modeling long-range disorder in MOFs: Development of a computational toolbox to extend the length scale in molecular simulations

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The Goodwin Group
Oxford, United Kingdom
Monday, 22 July, 2019

A full computational characterization of the impact of defects on the mechanical stability and gas separation ability of MOFs

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docMOF Symposium
Raitenhaslach, Germany
Monday, 30 April, 2018 to Wednesday, 2 May, 2018

Towards modeling long-range disorder in MOFs: Development of a computational toolbox to extend the length scale in molecular simulations

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Invited talk

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CECAM workshop: Multi-scale modelling of flexible and disordered porous materials
Paris, France
Monday, 11 June, 2018 to Wednesday, 13 June, 2018

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