Synthesis of carbon nanotubes on FexOy doped Al2O3–ZrO2 nanopowder

Nikkanen, Juha-Pekka; Harju, Mika; Järn, Mikael; Lindén, J.; Rintala, Jyri; Messing, Maria E.; Huttunen-Saarivirta, Elina; Saarinen, Tuomo; Kanerva, Tomi; Honkanen, Mari; Aromaa, Mikko; Levänen, Erkki; Pettersson, Mika; Mäkelä, Jyrki M.; Deppert, Knut; Mäntylä, T.

doi:10.1016/j.powtec.2014.06.020

Cited by 8 publications

(7 citation statements)

References 46 publications

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“…This peak corresponds to the (440) lattice plain of γ ‐alumina . In a recent study, Nikkanen et al detected no crystalline alumina in the LFS‐generated iron oxide doped alumina–zirconia nanopowder, whereas, the alumina particles produced by Strobel et al were slightly amorphous γ ‐phase, as is most likely the case with the alumina residual and nanoparticles produced in this study. However, we cannot rule out the existence of other alumina crystal structures .…”

Section: Resultssupporting

confidence: 59%

Aerosol analysis of residual and nanoparticle fractions from spray pyrolysis of poorly volatile precursors

et al. 2016

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The quality of aerosol‐produced nanopowders can be impaired by micron‐sized particles formed due to non‐uniform process conditions. Methods to evaluate the quality reliably and fast, preferably on‐line, are important at industrial scales. Here, aerosol analysis methods are used to determine the fractions of nanoparticles and micron‐sized residuals from poorly volatile precursors. This is accomplished using aerosol instruments to measure the number and mass size distributions of Liquid Flame Spray‐generated alumina and silver particles produced from metal nitrates dissolved in ethanol and 2‐ethylhexanoic acid (EHA). The addition of EHA had no effect on silver, whereas, 5% EHA concentration was enough to shift the alumina mass from the residuals to nanoparticles. The size‐resolved aerosol analysis proved to be an effective method for determining the product quality. Moreover, the used on‐line techniques alone can be used to evaluate the process output when producing nanopowders, reducing the need for tedious off‐line analyses. © 2016 American Institute of Chemical Engineers AIChE J, 63: 881–892, 2017

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Section: Resultssupporting

confidence: 59%

Aerosol analysis of residual and nanoparticle fractions from spray pyrolysis of poorly volatile precursors

et al. 2016

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“…The peaks centered at 741.8 eV and 731.9 eV were the spectral peaks of FeOOH [29], confirming its presence in the RM sample. In addition, the presence of Fe 2 O 3 was confirmed by the peaks centered at 710.8 eV and 724.6 eV, which are the spectral peaks of 2p 3/2 and 2p 1/2 of iron [30]. After surface cobalt loading, the number of photoelectric peaks in the Co/RM sample decreased to three.…”

Section: Resultsmentioning

confidence: 91%

Cobalt modified red mud catalytic ozonation for the degradation of bezafibrate in water: Catalyst surface properties characterization and reaction mechanism

Zhang

et al. 2016

Chemical Engineering Journal

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“…single component (Tikkanen et al, 1997;Mäkelä et al, 2004), binary component Keskinen et al, 2005) and multicomponent nanopowders (Nikkanen et al, 2008;Nikkanen et al,. 2014).…”

Section: Nanopowder Generationmentioning

confidence: 99%

“…In these studies, the particulate matter was collected from the exhaust flow of the flame using an electrostatic precipitator. Nikkanen et al (2014) used collected and compacted composite nanopowder made by the LFS to fabricate carbon nanotubes within the porous powder sample. The LFS generated nanopowder has also been used for fabricating magnetic composite nanoparticles in a tube furnace (Harra et al, 2013), in order to produce photocatalytic powder for water purification, and for a study on coating of ceramic nanoparticles with silver in a tube furnace (Harra et al, 2015).…”

Section: Nanopowder Generationmentioning

confidence: 99%

Liquid Flame Spray—A Hydrogen-Oxygen Flame Based Method for Nanoparticle Synthesis and Functional Nanocoatings

Mäkelä¹,

Haapanen²,

Harra³

et al. 2017

KONA

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In this review article, a specific flame spray pyrolysis method, Liquid Flame Spray (LFS), is introduced to produce nanoparticles using a coflow type hydrogen-oxygen flame utilizing pneumatically sprayed liquid precursor. This method has been widely used in several applications due to its characteristic features, from producing nanopowders and nanostructured functional coatings to colouring of art glass and generating test aerosols. These special characteristics will be described via the example applications where the LFS has been applied in the past 20 years.

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Synthesis of carbon nanotubes on FexOy doped Al2O3–ZrO2 nanopowder

Cited by 8 publications

References 46 publications

Aerosol analysis of residual and nanoparticle fractions from spray pyrolysis of poorly volatile precursors

Aerosol analysis of residual and nanoparticle fractions from spray pyrolysis of poorly volatile precursors

Cobalt modified red mud catalytic ozonation for the degradation of bezafibrate in water: Catalyst surface properties characterization and reaction mechanism

Liquid Flame Spray—A Hydrogen-Oxygen Flame Based Method for Nanoparticle Synthesis and Functional Nanocoatings

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