Microwave-hydrothermal processing of titanium dioxide

Komarneni, Sridhar; Rajha, Rama K; Katsuki, Hiroaki

doi:10.1016/s0254-0584(99)00113-3

Cited by 160 publications

(89 citation statements)

References 15 publications

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“…Tungsten trioxide nanostructures can also be prepared by a low temperature hydrothermal route [26][27]. The recently developed microwave-assisted hydrothermal (M-H) technique [28][29], which is superior to conventional hydrothermal process due to (i) fast heating to the temperature of treatment and (ii) extremely rapid kinetics of crystallization, was successfully used for the TiO 2 synthesis [29][30].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of novel Ti0.7W0.3O2–C composite materials for Pt-based anode electrocatalysts with enhanced CO tolerance

Gubán

Borbáth

Pászti

et al. 2015

Applied Catalysis B: Environmental

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Ti-based electroconductive mixed oxides were deposited onto activated carbon by using three different sol-gel-based multistep synthesis routes. As demonstrated by X-ray diffraction, high crystallinity of the tungsten-loaded rutile was achieved by a sequence of annealing in inert atmosphere at 750°C and a short reductive treatment at 650°C.Formation of the rutile phase on the carbon support before the high temperature treatment has been proved to be the prerequisite for complete W incorporation into the rutile lattice. The structural and compositional properties of the mixed oxides were explored by transmission electron microscopy, temperature programmed reduction and X-ray photoelectron spectroscopy. Anode electrocatalysts were formulated by loading the composite of the activated carbon and the Ti-based electroconductive mixed oxides with 40 wt% Pt. Enhanced CO tolerance along with considerable stability was demonstrated for the electrocatalyst prepared using the Ti 0.7 W 0.3 O 2 -C composite material with high degree of W incorporation.

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Section: Introductionmentioning

confidence: 99%

Preparation and characterization of novel Ti0.7W0.3O2–C composite materials for Pt-based anode electrocatalysts with enhanced CO tolerance

Gubán

Borbáth

Pászti

et al. 2015

Applied Catalysis B: Environmental

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“…Usually, with the use of microwaves as the energy source to trigger chemical reactions, it is possible to obtain nanoparticles with controlled composition, cristallinity and morphology, with an improvement in the kinetics of reaction of two or three orders of magnitude [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Synthesis of Boron-Modified TiO2 Nanocrystals

Carlucci

Scremin

Sibillano³

et al. 2014

Inorganics

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An efficient microwave-assisted synthesis of TiO 2 :(B) nanorods, using titanium tetraisopropoxide (TTIP), benzyl alcohol as the solvent, together with boric acid and oleic acid as the additive reagents, has been developed. Chemical modification of TTIP by oleic acid was demonstrated as a rational strategy to tune the shape of TiO 2 nanocrystals toward nanorod formation. The differently-shaped TiO 2 :(B) nanocrystals were characterized in detail by transmission electron microscopy (TEM), inductively coupled plasma-atomic emission spectroscopy (ICP-AES), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and nitrogen absorption-desorption. Oleic acid coordinated on the nanocrystal surface was removed by the reduction of its carboxyl group, and the photocatalytic activity of bare TiO 2 nanocrystals, under visible light irradiation, was also evaluated. The synthesized TiO 2 anatase nanorods exhibited a good photoactivity and completely degraded Rhodamine B solution within three hours.

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“…This method has been successfully applied for the preparation of a variety of nano-sized inorganic materials. The microwave synthesis, which is generally quite fast, simple, and energy efficient, has been developed, and widely used for TiO 2 nanoparticles 14 , metal (Cu, Hg, Zn, Bi, Pb) sulfide nanoparticles 15 , uniform and stable polymer-stabilized colloidal clusters of Pt, Ir, Rh, Pd, Au and Ru 16 , CuO 17 etc. Compared with conventional heating, microwave heating has an advantage of high efficiency and rapid formation of nanoparticles with a nano-size distribution and less agglomeration.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of CeO2 nanocrystals by solvothermal route

Kumar¹,

Selvarajan²,

Muthuraj

2013

Mat. Res.

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Cerium dioxide nanoparticles were prepared by solvothermal technique. The structural analysis was carried out using X-ray diffraction. It showed that the cerium dioxide nanoparticles exhibited cubic structure. Grain sizes were estimated from High Resolution Transmission Electron Microscopy images. The size of the nanoparticles is around 20 nm. The surface morphological studies from Scanning Electron Microscope (SEM) and HRTEM depicted spherical particles with formation of clusters. Thermal and electrical Insulating behaviors were determined.

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Microwave-hydrothermal processing of titanium dioxide

Cited by 160 publications

References 15 publications

Preparation and characterization of novel Ti0.7W0.3O2–C composite materials for Pt-based anode electrocatalysts with enhanced CO tolerance

Preparation and characterization of novel Ti0.7W0.3O2–C composite materials for Pt-based anode electrocatalysts with enhanced CO tolerance

Microwave-Assisted Synthesis of Boron-Modified TiO2 Nanocrystals

Synthesis and characterization of CeO2 nanocrystals by solvothermal route

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