Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Migration and Growth of Silver Nanoparticles in Zeolite Socony Mobil 5 (ZSM-5) Observed by Environmental Electron Microscopy: Implications for Heterogeneous Catalysis

Arnaud Monpezat, Sylvain Topin, Vincent Thomas, Céline Pagis, M. Aouine, Laurence Burel, Luis Cardenas, A. Tuel, Annie Malchère, Thierry Épicier, David Farrusseng, Lucian Roiban

ACS Applied Nano Materials · 2019

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Summary

Silver metal nanoparticles are among the most widely studied nanoparticles. They are widely used heterogeneous catalysts used for many purposes such as antisepsis, hydrogenation, and carboxylation but also for the trapping of xenon in nuclear test and detection facilities. The catalytic activity and adsorption capacity of silver nanoparticles, which depend on their size distribution and dispersion on the support, generally decrease with time because of agglomeration of the metal into larger particles. In this study, we quantified the sintering process of silver nanoparticles supported in Zeolite Socony Mobil 5 (ZSM-5) zeolite. It was found that 85% of the sintering process of the silver nanoparticles was driven by Ostwald ripening. We found that silver nanoparticles are trapped in porous c

Source type
Peer-reviewed study
DOI
10.1021/acsanm.9b01407
Catalogue ID
BFmobghr9o-675txq
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