Production of cerium dioxide microspheres by an internal gelation sol–gel method

Katalenich, Jeff

doi:10.1007/s10971-017-4345-8

Cited by 19 publications

(6 citation statements)

References 21 publications

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“…Moreover, IG studies to prepare CeO 2 particles are available in literature, they use Ce IV solution, pre-neutralised with NH 3 solution, as metal precursor [6][7][8][9]. Katalenich [10] compared the usage of Ce III and Ce IV as metal precursors and came to the conclusion that strong Ce gels with a quick gelation time could be achieved using diammonium cerium(IV) nitrate, whereas a Ce III nitrate feed solution did not lead to satisfying gels.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation

Schreinemachers

Leinders

Modolo

et al. 2020

Journal of Nuclear Materials

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Nd-and Ce-doped gels with Ln contents up to 30 mol% and good sphericity synthesised • successful implementation of the dopant into 3UO 3 •2NH 3 •4H 2 O matrix of the gel • Ce III more suitable than Ce IV for the fabrication of doped UO 2 by internal gelation • single phases for U 0.95 Ln 0.05 O 2±x to U 0.7 Nd 0.3 O 2±x and U 0.8 Ce 0.2 O 2±x obtained • fabrication process for transmutation fuel or targets materials via IG improved

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Section: Introductionmentioning

confidence: 99%

Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation

Schreinemachers

Leinders

Modolo

et al. 2020

Journal of Nuclear Materials

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“…Drying and sintering heating profiles developed by Katalenich are implemented. [ 38 ] These gelled microspheres (shown in Figure 5) have a mean size of 2100 μm and a standard deviation of 2.01%.…”

Section: Methodsmentioning

confidence: 99%

Fabrication of CeO₂ microspheres by internal gelation process using flow‐focusing droplet generator

et al. 2023

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Sphere‐pac fuel is an alternative nuclear fuel technology in which microspheres of two or more sizes are utilized to fill the cladding tube in place of the more conventional single‐size fuel pellets. This provides leeway for adjusting the fuel pellet packing density and resulting cladding tube porosity. The current investigation makes use of a flow‐focusing droplet generator made from stainless steel (S.S.) 316 L, with a channel internal diameter (I.D.) of 0.5, 0.8, 1, and 3 mm. These microspheres were supposed to be of actinide oxide but here, cerium has been chosen as a surrogate of plutonium. Detailed information about the flow‐focusing droplet generator, internal gelation process, and sphere‐pac fuel has been provided. The size and size distribution of ceria microspheres were investigated by varying the flow rates of the continuous and dispersed phase. The characterization of ceria microspheres has been conducted using techniques such as scanning electron microscope (SEM), X‐ray diffraction (XRD), Fourier‐transform infrared spectroscopy (FTIR), and Brunauer–Emmett–Teller (BET) analyses. The size of prepared monodisperse microspheres was controlled precisely (within ±2%) in the range of 498–2888 μm using four S.S. 316 L flow‐focusing droplet generators with channel I.D. 0.5, 0.8, 1, and 3 mm, respectively, and the coefficient of variation of the size distribution was found to be less than 2%.

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“…1,24,26 Hexamethylenetetramine (HMT) is a common alkalizer in homogeneous precipitation reactions as it decomposes to form ammonia. 1,24,41 Chen and Chen originally reported an aqueous Ce NP synthesis with Ce III nitrate, HMT, and mild heating. 24 Zhang et al 26 and Parimi et al 1 prepared Ce NPs with the same reaction constituents, but at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Preparation of monodisperse cerium oxide particle suspensions from a tetravalent precursor

Hastings,

Herrera,

Harris

et al. 2024

Dalton Trans.

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Production of cerium dioxide microspheres by an internal gelation sol–gel method

Cited by 19 publications

References 21 publications

Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation

Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation

Fabrication of CeO₂ microspheres by internal gelation process using flow‐focusing droplet generator

Preparation of monodisperse cerium oxide particle suspensions from a tetravalent precursor

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Production of cerium dioxide microspheres by an internal gelation sol–gel method

Cited by 19 publications

References 21 publications

Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation

Fabrication of Nd- and Ce-doped uranium dioxide microspheres via internal gelation

Fabrication of CeO2 microspheres by internal gelation process using flow‐focusing droplet generator

Preparation of monodisperse cerium oxide particle suspensions from a tetravalent precursor

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Fabrication of CeO₂ microspheres by internal gelation process using flow‐focusing droplet generator