[en] Ostwald ripening is a major source of deactivation of functional nanomaterials. It consists in the growth of large nanoparticles at the expense of smaller ones via the formation and decomposition of intermediate chemical species. In most materials of practical interest nanoparticles are dispersed in porous supports with which they interact mechanically. We analyze the consequences of this chemo-mechanical coupling on both kinetic and equilibrium aspects of Ostwald ripening. We show that the long-term stability of a collection of confined nanoparticles depends on nucleation-like events, whereby few particles break through the pore walls early in the process and later grow at the expense of all other particles. This notably explains why the stability of confined nanoparticles depends critically on their initial size distribution; it also provides an explanation for the occasional observation of bimodal particle size distributions in aged materials.
Disciplines :
Chemistry Materials science & engineering Physics
Author, co-author :
Gommes, Cédric ; Université de Liège - ULiège > Department of Chemical Engineering > Department of Chemical Engineering
Language :
English
Title :
Ostwald ripening of confined nanoparticles: chemomechanical coupling in nanopores
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Bibliography
R. Ouyang J.-X. Liu W.-X. Li J. Am. Chem. Soc. 2013 135 1760 1771
G. Prieto J. Zečević H. Friedrich K. P. De Jong P. E. De Jongh Nat. Mater. 2013 12 34 39
A. S. Aricò P. Bruce B. Scrosati J. Tarascon W. Van Schalkwijk Nat. Mater. 2005 4 366 377
T. W. Hansen A. T. DeLaRiva S. R. Challa A. K. Datye Acc. Chem. Res. 2013 46 1720 1730
L. Ratke and P. W. Voorhees, Growth and Coarsening, Springer, Berlin, Heidelberg, 2002
S. B. Simonsen I. Chorkendorff S. Dahl M. Skoglundh J. Sehested S. Helveg J. Am. Chem. Soc. 2010 132 7968 7975
Q. Xu K. Kharas B. Croley A. Datye ChemCatChem 2011 3 1004 1014
S. R. Challa A. T. Delariva T. W. Hansen S. Helveg J. Sehested P. Hansen F. Garzon A. Datye J. Am. Chem. Soc. 2011 133 20672 20675
P. Munnik M. Velthoen P. de Jongh K. De Jong C. Gommes Angew. Chem., Int. Ed. 2014 53 9493 9497
F. Yang M. Chen D. Goodman J. Phys. Chem. C 2009 113 254 260
D. Alloyeau G. Prévot Y. Le Bouar T. Oikawa C. Langlois A. Loiseau C. Ricolleau Phys. Rev. Lett. 2010 105 255901
C. T. Campbell C. P. Parker E. S. Starr Science 2002 298 811 814
S. Hu W.-X. Li ChemCatChem 2018 10 2900 2907
Y. Bai J. Zhang G. Yang Q. Zhang J. Pan H. Xie X. Liu Y. Han Y. Tan ACS Catal. 2018 8 6367 6374
S. Simonsen I. Chorkendorff S. Dahl M. Skoglundh J. Sehested S. Helveg J. Catal. 2011 281 147 155
R. Van den Berg T. Parmentier C. Elkjaer C. Gommes J. Sehested S. Helveg P. de Jongh K. de Jong ACS Catal. 2015 5 4439 4448
M. Agnelli M. Kolb C. Mirodatos J. Catal. 1994 148 9 21
V. Zhdanov E. Larsson C. Langhammer Chem. Phys. Lett. 2012 533 65 69
P. Gallezot A. Alarcon-Diaz J.-A. Dalmon A. Renouprez B. Imelik J. Catal. 1975 39 334 349
H. Brumberger J. Goodisman R. Ramaya S. Ciccariello J. Appl. Crystallogr. 1996 29 526 530
J. Zečević A. Van Der Eerden H. Friedrich P. De Jongh K. De Jong ACS Nano 2013 7 3698 3705
P. G. Debenedetti, Metastable Liquids: Concepts and Principles, Princeton University Press, Princeton, 1997
C. J. Brinker and G. W. Scherer, Sol-gel Science, Academic Press, New York, 1990
R. Hill, The Mathematical Theory of Plasticity, Clarendon Press, Oxford, 1950
G. W. Scherer J. Non-Cryst. Solids 1997 215 155 168
G. W. Scherer Cem. Concr. Res. 1999 29 1347 1358
W. M. Goldberger D. F. Othmer Ind. Eng. Chem. Process Des. Dev. 1963 2 202 209
I. Chorkendorff and J. W. Niemantsverdriet, Concepts of Modern Catalysis and Kinetics, Wiley, 2003
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