Application of Microwave-Assisted Deposition for the Synthesis of Noble Metal Particles on Ti-Containing Mesoporous Silica

Shironita, Sayoko; Takasaki, Tomoya; Kamegawa, Takashi; Mori, Kohsuke; Yamashita, Hiromi

doi:10.1007/s10562-009-9861-x

Cited by 16 publications

(7 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be observed that, due to the various natures of the noble metal, different morphologies of Au-NPs confined among the channels of mesoporous silicas can be formed. Meanwhile, another facile and unique methodology to synthesize the nanosized and uniform noble metal (Pt and Au) nanoparticles has been developed using mesoporous silica support including single-site titanium oxide moieties (Ti-HMS) under microwave irradiation [48]. Physical characterizations reveal that the smaller size of metal particles is formed on the microwave-assisted Ti-HMS support compared to the conventionally prepared impregnated samples.…”

Section: Other Novel Synthesis Of Au/mesoporous Silicamentioning

confidence: 99%

Mesoporous Silica Based Gold Catalysts: Novel Synthesis and Application in Catalytic Oxidation of CO and Volatile Organic Compounds (VOCs)

Pantaleo

Venezia

et al. 2013

Catalysts

View full text Add to dashboard Cite

Abstract:Gold nanoparticles, particularly with the particle size of 2-5 nm, have attracted increasing research attention during the past decades due to their surprisingly high activity in CO and volatile organic compounds (VOCs) oxidation at low temperatures. In particular, CO oxidation below room temperature has been extensively studied on gold nanoparticles supported on several oxides (TiO 2 , Fe 2 O 3 , CeO 2 , etc.). Recently, mesoporous silica materials (such as SBA-15, MCM-41, MCM-48 and HMS) possessing ordered channel structures and suitable pore diameters, large internal surface areas, thermal stabilities and excellent mechanical properties, have been investigated as suitable hosts for gold nanoparticles. In this review we highlight the development of novel mesoporous silica based gold catalysts based on examples, mostly from recently reported results. Several synthesis methods are described herein. In detail we report: the modification of silica with organic functional groups; the one-pot synthesis with the incorporation of both gold and coupling agent containing functionality for the synthesis of mesoporous silica; the use of cationic gold complexes; the synthesis of silica in the presence of gold colloids or the dispersion of gold colloids protected by ligands or polymers onto silica; the modification of silica by other metal oxides; other conventional preparation methods to form mesoporous silica based gold catalysts. The gold based catalysts prepared as such demonstrate good OPEN ACCESSCatalysts 2013, 3 775 potential for use in oxidation of CO and VOCs at low temperatures. From the wide family of VOCs, the oxidation of methanol and dimethyldisulfide has been addressed in the present review.

show abstract

Section: Other Novel Synthesis Of Au/mesoporous Silicamentioning

confidence: 99%

Mesoporous Silica Based Gold Catalysts: Novel Synthesis and Application in Catalytic Oxidation of CO and Volatile Organic Compounds (VOCs)

Pantaleo

Venezia

et al. 2013

Catalysts

View full text Add to dashboard Cite

show abstract

“…55,56 Physical irradiation methods, such as synchrotron X-ray irradiation, microwave heating, and sonication have emerged recently to reduce Au on TiO 2 supports. 32,33,57 The advantage of the synchrotron method was that the resultant Au NPs had a uniform size distribution of 2-5 nm and a much shorter time (e.g. exposure time of 1-15 min) was required to obtain fully reduced Au NPs, in comparison with conventional chemical or photochemical methods.…”

Section: Addition Of Au Nanoparticles To Tiomentioning

confidence: 99%

Enhancing photocatalytic activity of titania materials by using porous structures and the addition of gold nanoparticles

2011

View full text Add to dashboard Cite

“…[108][109][110][111] Recently, we have found that Ti-HMS also acts as a promising platform to deposit uniform and small metal particles, such as Pt and Au, under microwave irradiation. 112 The detailed mechanism of the formation of the noble metal particles on single-site photocatalysts has been investigated as future work.…”

Section: Hollow Magnetic C-fe 2 O 3 Nanospheresmentioning

confidence: 99%

Progress in design and architecture of metal nanoparticles for catalytic applications

Mori

Yamashita

2010

Phys. Chem. Chem. Phys.

Self Cite

View full text Add to dashboard Cite

Over the past few years, nanometer-sized transition metal particles have been intensively pursued as potentially advanced catalysts because their special properties lie between those of single metal atoms and bulk metal. Achieving the accurate control of particle size and overall particle size distribution is one of the most crucial challenges to provide unique chemical and physical properties. We highlight herein our recent progress in the exploitation of promising nanoparticle (NP)-based catalysts designed by precise architecture that enable efficient and selective chemical transformations and can be completely separated and are recyclable. This perspective article consists of the following two specific topics: (i) multifunctional catalysts based on magnetic NPs and (ii) new routes for the preparation of supported metal NPs catalysts. The synthetic strategies described here are simple and general for practical catalyst design, thus allowing a strong protocol for creating various nanostructured catalysts.

show abstract

Application of Microwave-Assisted Deposition for the Synthesis of Noble Metal Particles on Ti-Containing Mesoporous Silica

Cited by 16 publications

References 32 publications

Mesoporous Silica Based Gold Catalysts: Novel Synthesis and Application in Catalytic Oxidation of CO and Volatile Organic Compounds (VOCs)

Mesoporous Silica Based Gold Catalysts: Novel Synthesis and Application in Catalytic Oxidation of CO and Volatile Organic Compounds (VOCs)

Enhancing photocatalytic activity of titania materials by using porous structures and the addition of gold nanoparticles

Progress in design and architecture of metal nanoparticles for catalytic applications

Contact Info

Product

Resources

About