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Electroless plating of platinum nanoparticles onto mesoporous cellulose films for catalytically active free-standing materials
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Electroless plating of platinum nanoparticles onto mesoporous cellulose films for catalytically active free-standing materials
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Journal Article
Electroless plating of platinum nanoparticles onto mesoporous cellulose films for catalytically active free-standing materials
2019
Overview
Here we report a simple and cost-effective approach for the electroless plating of platinum onto mesoporous cellulosic structures to obtain catalytically active free-standing hybrid materials. Pt nanoparticles are reduced onto native cellulosic supports through wet chemical reduction of
cis
-[PtCl
2
(sty)
2
] (sty = styrene). The decoration of solid cellulosic films by Pt nanoparticles was followed by Fourier transform infrared spectroscopy, reflectance mode ultraviolet–visible spectroscopy, thermogravimetric analysis, X-ray powder diffraction and scanning electron microscopy. An induction period is observed for the reduction of
cis
-[PtCl
2
(sty)
2
] to spherical Pt nanoparticles onto cellulosic supports, after which the amount of deposited Pt increases rapidly. Upon coating a commercially available cellulose fabric with Pt, the Brunauer–Emmett–Teller surface area increases by a factor of 4. Catalytic properties of obtained materials are examined for two model reactions; the reduction of 4-nitrophenol to 4-aminophenol and the hydrosilylation of styrene with triethylsilane. Catalysis was particularly efficient using previously synthesized mesoporous cellulose nanocrystal films as supports due to their high specific surface area up to 177 m
2
g
−1
. Free-standing Pt-decorated mesoporous cellulose films could be potentially used in catalytic applications for the production of industrially relevant compounds and wastewater treatment.
Graphical abstract
An approach for the electroless plating of platinum onto mesoporous cellulosic structures to obtain catalytically active free-standing hybrid materials is here reported. Obtained materials show a potential application for novel production procedures applied to industrially relevant compounds.
Publisher
Springer Netherlands,Springer Nature B.V
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