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Controlled Growth of Ag Nanocrystals in a H‐Bonded Open Framework
Author(s) -
Khodja Walid,
Collière Vincent,
Kahn Myrtil L.,
Roques Nans,
Sutter JeanPascal
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201903684
Subject(s) - nanomaterials , nanocrystal , materials science , supramolecular chemistry , porosity , nanotechnology , chemical engineering , metal , rational design , matrix (chemical analysis) , hybrid material , composite material , crystal structure , chemistry , crystallography , metallurgy , engineering
A procedure that enabled rational access to the first example of hybrid material made of NPs grown within a H‐bonded framework is reported. To avoid competitive reactions with the framework units, the metal precursor was chemically trapped in the porous structure and subsequently photo‐reduced to afford the hybrid material Ag@SPA‐2 , which consists of Ag NPs of nanometric sizes (<15 nm) homogeneously distributed in the crystals of the host material. In a subsequent step, taking advantage of the porous matrix the silver NPs have been transformed in situ to Ag 2 S NP by simple infiltration of H 2 S. The supramolecular network is shown to play an important role in stabilizing the inorganic nanomaterials and thus in controlling their growth.