Preparation of highly active platinum nanoparticles on ZSM-5 zeolite including cerium and titanium dioxides as photo-assisted deposition sites

Shironita, Sayoko; Goto, Masahiko; Kamegawa, Takashi; Mori, Kohsuke; Yamashita, Hiromi

doi:10.1016/j.cattod.2010.04.026

Cited by 13 publications

(4 citation statements)

References 21 publications

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“…Several methods have applied in the preparation of Pt nanoparticle deposited on TiO 2 substrates included underpotential deposition [127–129], hydrothermal treatment [130, 131], photoassisted reduction [132], and vacuum deposition [133, 134]. Electrodeposition would be a straightforward approach for the synthesis of Pt-supported TiO 2 , which is highly required for the production of complex electrode architectures in fuel cells [132–134].…”

Section: Tio2: As Support In Heterogeneous Catalysismentioning

confidence: 99%

Titanium Dioxide as a Catalyst Support in Heterogeneous Catalysis

Bagheri

Julkapli

Hamid

2014

The Scientific World Journal

325

176

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The lack of stability is a challenge for most heterogeneous catalysts. During operations, the agglomeration of particles may block the active sites of the catalyst, which is believed to contribute to its instability. Recently, titanium oxide (TiO 2 ) was introduced as an alternative support material for heterogeneous catalyst due to the effect of its high surface area stabilizing the catalysts in its mesoporous structure. TiO 2 supported metal catalysts have attracted interest due to TiO 2 nanoparticles high activity for various reduction and oxidation reactions at low pressures and temperatures. Furthermore, TiO 2 was found to be a good metal oxide catalyst support due to the strong metal support interaction, chemical stability, and acid-base property. The aforementioned properties make heterogeneous TiO 2 supported catalysts show a high potential in photocatalyst-related applications, electrodes for wet solar cells, synthesis of fine chemicals, and others. This review focuses on TiO 2 as a support material for heterogeneous catalysts and its potential applications.

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Section: Tio2: As Support In Heterogeneous Catalysismentioning

confidence: 99%

Titanium Dioxide as a Catalyst Support in Heterogeneous Catalysis

Bagheri

Julkapli

Hamid

2014

The Scientific World Journal

325

176

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“…Recently, some researchers have used zeolite as hosts to fix semiconductors, due to its unique, uniform pores and channel size. Since encapsulation of TiO 2 into zeolite was first introduced by Krueger et al [31] and Liu et al [32,33], many other encapsulation methods [34][35][36][37] have been developed to produce small particle sizes exhibiting quantum size effects or some improved photochemical reactions.…”

Section: Introductionmentioning

confidence: 99%

Zeolite Y from rice husk ash encapsulated with Ag-TiO2: characterization and applications for photocatalytic degradation catalysts

Mohamed

Mkhalid

Salam

et al. 2013

Desalination and Water Treatment

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A B S T R A C TA high level of efficiency in the photocatalytic reactions was achieved by increasing the surface area of the photocatalyst by supporting fine TiO 2 particles on porous materials. Among various supports, zeolites seem to be an attractive candidate. Ti-incorporated Y zeolite was prepared by an ion-exchange method, while Ag was immobilized on the encapsulated titanium via impregnation method. The produced samples were characterized using X-ray diffraction, ultraviolet and visible spectroscopy, photoluminescence emission spectra, scanning electron microscopy, and surface area measurement. Furthermore, the catalytic performances of Ti-Ag/NaY tests were carried out for degradation of cyanide using visible light. The results reveal a good distribution of Ag on the zeolite. Ag doping can eliminate the recombination of electron-hole pairs in the catalyst. These results demonstrate that the optimum weight% of Ag to Ti-NaY is 0.3%; this weight% facilitates high performance by the photocatalyst, degrading 99% of cyanide in a 100 mg/L solution in 60 min.

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“…Recently, we have successfully utilized single-site photocatalysts as a platform for the synthesis of nano-sized metal catalysts by the advanced photo-assisted deposition (PAD) method. [99][100][101][102][103][104][105][106] Under UV-light irradiation of the slurry of TS-1 (Pd/Ti = 0.6) in an aqueous PdCl 2 solution, Pd metal can be successfully deposited on the TS-1. No Pd deposition was observed either on the silicalite zeolite without Ti-oxide under UV-light irradiation or the TS-1 zeolite without UV-light irradiation.…”

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

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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.

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Preparation of highly active platinum nanoparticles on ZSM-5 zeolite including cerium and titanium dioxides as photo-assisted deposition sites

Cited by 13 publications

References 21 publications

Titanium Dioxide as a Catalyst Support in Heterogeneous Catalysis

Titanium Dioxide as a Catalyst Support in Heterogeneous Catalysis

Zeolite Y from rice husk ash encapsulated with Ag-TiO2: characterization and applications for photocatalytic degradation catalysts

Progress in design and architecture of metal nanoparticles for catalytic applications

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