Direct continuous hydrothermal synthesis of high surface area nanosized titania

Zhang, Zhice; Brown, Suree; Goodall, Josephine B. M.; Weng, Xiaole; Thompson, Kathryn; Gong, Kenan; Kellici, Suela; Clark, Robin J. H.; Evans, Julian; Darr, Jawwad A.

doi:10.1016/j.jallcom.2008.09.036

Cited by 82 publications

(68 citation statements)

References 51 publications

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“…CHFS experiments were conducted using a reactor, basic design of which has been reported previously [47,[61][62][63]. Briefly, the system consists of three high performance liquid chromatography (HPLC) pumps used for the delivery of aqueous solution of reagents as shown in Figure 3.…”

Section: Ceria-zirconiaoxide/graphenenanocomposite Synthesis Via Chfsmentioning

confidence: 99%

Greener synthesis of dimethyl carbonate using a novel ceria–zirconia oxide/graphene nanocomposite catalyst

Saada

Kellici

Heil³

et al. 2015

Applied Catalysis B: Environmental

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130

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Section: Ceria-zirconiaoxide/graphenenanocomposite Synthesis Via Chfsmentioning

confidence: 99%

Greener synthesis of dimethyl carbonate using a novel ceria–zirconia oxide/graphene nanocomposite catalyst

Saada

Kellici

Heil³

et al. 2015

Applied Catalysis B: Environmental

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130

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“…Structure fitting was neither required nor possible as absorption of X-rays by cerium was severe and beyond the functional limits of the available refinement packages. Crystallite size was calculated from XRD peak half-widths using the Scherrer equation (Zhang et al 2009b). …”

Section: (I) Details Of Hitch Heaters and Their Designmentioning

confidence: 99%

High-throughput continuous hydrothermal flow synthesis of Zn–Ce oxides: unprecedented solubility of Zn in the nanoparticle fluorite lattice

Kellici

Gong

Lin

et al. 2010

Phil. Trans. R. Soc. A.

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High-throughput continuous hydrothermal flow synthesis has been used as a rapid and efficient synthetic route to produce a range of crystalline nanopowders in the CeZn oxide binary system. High-resolution powder X-ray diffraction data were obtained for both as-prepared and heat-treated (850• C for 10 h in air) samples using the new robotic beamline I11, located at Diamond Light Source. The influence of the sample composition on the crystal structure and on the optical and physical properties was studied. All the nanomaterials were characterized using Raman spectroscopy, UV-visible spectrophotometry, Brunauer-Emmett-Teller surface area and elemental analysis (via energy-dispersive X-ray spectroscopy). Initially, for 'as-prepared' Ce 1−x Zn x O y , a phasepure cerium oxide (fluorite) structure was obtained for nominal values of x = 0.1 and 0.2. Biphasic mixtures were obtained for nominal values of x in the range of 0.3-0.9 (inclusive). High-resolution transmission electron microscopy images revealed that the phase-pure nano-CeO 2 (x = 0) consisted of ca 3.7 nm well-defined nanoparticles. The nanomaterials produced herein generally had high surface areas (greater than 150 m 2 g −1 ) and possessed combinations of particle properties (e.g. bandgap, crystallinity, size, etc.) that were unobtainable or difficult to achieve by other more conventional synthetic methods.

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“…3. [7] In CHFS a stream of supercritical water contacts a stream of metal salts of ambient temperature instigating nucleation of metal oxide nanoparticles due to instantaneous hydrolysis and dehydration reactions ( Table 4). The reaction was facilitated by the use of a patented confined jet-mixer which controls the mixing of reactants and nucleation of nanoparticles, without blockage of the reactor (Fig.…”

Section: Methodsmentioning

confidence: 99%

A Comparison of the Potential Capability of SFS, SPS and HVSFS for the Production of Photocatalytic Titania Coatings

et al. 2016

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The photocatalytic capabilities of titanium dioxide are widely published. Reported applications of titania coatings include air purification, water purification and self-cleaning. Suspension spray has been highlighted as a possible route for the deposition of highly active nanostructured TiO2 coatings. Published work has demonstrated the capabilities of suspension plasma spray (SPS) and high velocity suspension flame spray (HVSFS), however, little work exists for suspension flame spray (SFS). Herein, these three suspension spray processes are compared as regards their capability to produce photocatalytic TiO2 coatings and their potential for industrial scale up. A range of coatings were produced for each process, manipulating coating parameters in order to vary phase composition and other coating characteristics to effect activity. Coatings produced were found to vary significantly between the processes with SFS highlighted as the most effective technique with regards to future scale-up and coating photoactivity. SFS coatings were found to be up to 5 times more active than analogous coating produced by CVD.

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Direct continuous hydrothermal synthesis of high surface area nanosized titania

Cited by 82 publications

References 51 publications

Greener synthesis of dimethyl carbonate using a novel ceria–zirconia oxide/graphene nanocomposite catalyst

Greener synthesis of dimethyl carbonate using a novel ceria–zirconia oxide/graphene nanocomposite catalyst

High-throughput continuous hydrothermal flow synthesis of Zn–Ce oxides: unprecedented solubility of Zn in the nanoparticle fluorite lattice

A Comparison of the Potential Capability of SFS, SPS and HVSFS for the Production of Photocatalytic Titania Coatings

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