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Patil, Swanand; Kuiry, S. C.; Seal, Sudipta; Vanfleet, Richard

doi:10.1023/a:1021696107498

Cited by 125 publications

(39 citation statements)

References 20 publications

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“…Because of the potential impacts of nanostructured ceria materials (including their possible importance for fuel cells [3] as catalysis supports, [4] as corrosion inhibitors, [5] and as antioxidant biomaterial [6] ), they have been examined by a variety of researchers. Much of this research involves ceria nanoparticles and it is important to understand the effect of size, environment, and time on their properties.…”

Section: Environmental Impacts On Ceria Nanoparticle Chemistrymentioning

confidence: 99%

Characterization challenges for nanomaterials

Baer

Amonette

Engelhard

et al. 2008

Surface & Interface Analysis

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121

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Nanostructured materials are increasingly subject to nearly every type of chemical and physical analysis possible. Due to their small sizes, there is a significant focus on tools with high spatial resolution. It is also natural to characterize nanomaterials using tools designed to analyze surfaces, because of their high surface area. Regardless of the approach, nanostructured materials present a variety of obstacles to adequate, useful, and needed analysis. Case studies of measurements on ceria and iron metal-core/oxide-shell nanoparticles are used to introduce some of the issues that frequently need to be addressed during analysis of nanostructured materials. We use a combination of tools for routine analysis including X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and x-ray diffraction (XRD) and apply several other methods as needed to obtain essential information. The examples provide an introduction to other issues and complications associated with the analysis of nanostructured materials including particle stability, probe effects, environmental effects, specimen handling, surface coating, contamination, and time.

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Section: Environmental Impacts On Ceria Nanoparticle Chemistrymentioning

confidence: 99%

Characterization challenges for nanomaterials

Baer

Amonette

Engelhard

et al. 2008

Surface & Interface Analysis

Self Cite

121

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“…The composite electrodes prepared by immersion were placed in a 5 mM suspension of ceria nanoparticles for 12 h. The ceria nanoparticles were synthesized following published procedures [33]. The modified electrodes were then thoroughly rinsed with triply DI water and air dried prior to electrochemical experiments.…”

Section: Preparation Of Modified Electrodesmentioning

confidence: 99%

Novel Nanoscale Ceria–Platinum Composite Electrodes for Direct Alcohol Electro-Oxidation

et al. 2007

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A nanocrystalline Pt/CeO 2 composite electrode is fabricated to study the electrochemical oxidation of methanol and ethanol. Three different methods have been developed for the preparation of the composite electrode and are compared in terms of their oxidation efficiencies. In general, all the electrode preparation methodologies show a great enhancement of the oxidation current for the alcohol. However, methods based on the electrodeposition of a ceria rich Pt matrix show the greatest effectiveness of alcohol oxidation. The enhancement of the anodic current is dependent on the particle loading and size distribution in the composite matrix. In general, ceria appears to be an effective alternative to ruthenium in direct alcohol fuel cells.

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“…7a and 7b correspond to clear-field micrographs taken from a CeO 2 sample, in which spheroidal nanoparticles with an average size of 5 nm (indicated by arrows) are observed. These results indicate that using the proposed methodology can be obtained CeO 2 nanoparticle, and suggesting that during the joint process of synthesis and doping both types of nanoparticles, however, because the CeO 2 nuclei are smaller, due to the low concentration of reagent, gives a secondary nucleation, where the nanoparticles of TiO 2 are formed [12,19].…”

Section: Nanoparticles Synthesismentioning

confidence: 71%

“…The upper layer consists of the organic phase containing the nonagglomerated nanoparticles and the lower layer is treated with the inorganic phase [12]. In Fig.…”

Section: Nanoparticles Synthesismentioning

confidence: 99%

Titania-Ceria surfactant assisted sol-gel synthesis and characterization

Torres-Romero¹,

Cajero-Juárez²,

Contreras-Garcı́a³

2017

Epitoanyag - JSBCM

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the nanoparticles of titanium dioxide are important in a wide range of applications such as catalysis, environmental remediation and solar energy conversion. While cerium oxide is rareearth oxide material used in the fields of photoluminescence, photosensitive material to uv radiation. Furthermore, research on the synthesis of nanoparticles of titanium dioxide has given rise to different methods such as sol-gel, in solid states, hydrothermal processes, among others. the process of solid state synthesis is most often used for the technical production of ceramic materials, while the sol-gel has gained much popularity in recent decades. Between these methods, microemulsion of reverse micelles technique, is one of the most versatile allowing control of particle properties such as size distribution, morphology and surface area. in this work, titania-ceria nanoparticles in anatase phase were synthesized by sol-gel method assisted by microemulsion reverse micelle using titanium butoxide and cerium nitrate hexahydrate as the precursors. the sample was thermally treated at 600 °c at a rate of 3 °c min-1. the residence time of the sample at this temperature was 2 hrs. tem and XrD analysis were used to characterize the samples obtained. According to the results, the obtained nanoparticles present spherical morphology and have a size distribution of 5 nm for ceo 2 , 9.5 for tio 2 and 14, 17 and 20 nm for the doped tio 2 with 5, 10 and 15% ceo 2 , respectively. the results indicate that the ceo 2 was incorporated into the network of titania.

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Untitled

Cited by 125 publications

References 20 publications

Characterization challenges for nanomaterials

Characterization challenges for nanomaterials

Novel Nanoscale Ceria–Platinum Composite Electrodes for Direct Alcohol Electro-Oxidation

Titania-Ceria surfactant assisted sol-gel synthesis and characterization

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