Cyclodextrin-based Porous Silica Materials as in Situ Chemical “Nanoreactors” for the Preparation of Variable Metal−Silica Hybrids | Zendy

BaoHang Han | Zendy; Sebastian Polarz | Zendy; Markus Antonietti | Zendy

Open Access

Cyclodextrin-based Porous Silica Materials as in Situ Chemical “Nanoreactors” for the Preparation of Variable Metal−Silica Hybrids

Author(s) -

BaoHang Han,

Sebastian Polarz,

Markus Antonietti

Publication year - 2001

Publication title -

chemistry of materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.741

H-Index - 375

eISSN - 1520-5002

pISSN - 0897-4756

DOI - 10.1021/cm0110425

Subject(s) - nanoreactor , metal , materials science , porosity , catalysis , nanoparticle , group 2 organometallic chemistry , chemical engineering , template , porous medium , silica gel , hybrid material , cyclodextrin , nanotechnology , chemistry , organic chemistry , molecule , metallurgy , engineering , composite material

Inclusion complexes of cyclodextrins with organometallic coordination compounds of Pd, Pt, Rh, Fe, Ni, and Ru have been used to produce porous metal−silica hybrid materials. The cyclodextrins are templates for the structure of the silica and lead to a uniform “worm-type” pore system. After the templating step the organometallic compounds can be employed as in situ precursors for the preparation of metal nanoparticles within the pore system, thus leading to a one-step synthesis of silica-supported metal catalysts. These new materials are characterized and how the chemical confinement of the silica pores can influence the size, structure, and distribution of the nanoparticles is studied.

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