Chemistry of iron nitrate-based precursor solutions for spray-flame synthesis

2019 ◽  
Vol 21 (44) ◽  
pp. 24793-24801 ◽  
Author(s):  
Malte F. B. Stodt ◽  
Munko Gonchikzhapov ◽  
Tina Kasper ◽  
Udo Fritsching ◽  
Johannes Kiefer
Keyword(s):  
Large Scale ◽  
Flame Synthesis ◽  
Iron Nitrate ◽  
Spray Flame

Understanding the chemistry of precursor solutions for spray-flame synthesis is a key step to developing inexpensive and large scale applications for tailored nanoparticles.

Spray-Flame Synthesis of LaMnO3+δ Nanoparticles for Selective CO Oxidation (SELOX)

2021 ◽  
Author(s):  
Steven Angel ◽  
Juan David Tapia ◽  
Jaime Gallego ◽  
Ulrich Hagemann ◽  
Hartmut Wiggers
Keyword(s):  
Co Oxidation ◽  
Flame Synthesis ◽  
Selective Co Oxidation ◽  
Spray Flame

scholarly journals Droplet sizing in spray flame synthesis using wide-angle light scattering (WALS)

2020 ◽  
Vol 126 (5) ◽  
Author(s):  
Simon Aßmann ◽  
Bettina Münsterjohann ◽  
Franz J. T. Huber ◽  
Stefan Will
Keyword(s):  
Light Scattering ◽  
Flame Synthesis ◽  
Wide Angle ◽  
Spray Flame

Effect of Precursor and Solvent on Particle Homogeneity and Morphology during Spray Flame Synthesis of Nanoparticles

2003 ◽  
Vol 75 (8) ◽  
pp. 1129-1130 ◽  
Author(s):  
R. Jossen ◽  
W. J. Stark ◽  
L. Mädler ◽  
S. E. Pratsinis
Keyword(s):  
Flame Synthesis ◽  
Synthesis Of Nanoparticles ◽  
Spray Flame

scholarly journals Thermophysical Properties of Solutions of Iron (III) Nitrate-Nonahydrate in Mixtures of Ethanol and Water

2021 ◽  
Author(s):  
Alexander Keller ◽  
Irenäus Wlokas ◽  
Maximilian Kohns ◽  
Hans Hasse
Keyword(s):  
Thermophysical Properties ◽  
Pure Water ◽  
Flame Synthesis ◽  
Oxide Nanoparticles ◽  
Empirical Correlations ◽  
Specific Density ◽  
Pure Ethanol ◽  
Spray Flame ◽  
Nitrate Nonahydrate

The quality of nanoparticles that are obtained by spray flame synthesis dependsstrongly on the thermophysical properties of the precursor solutions. Solutions ofiron(III)nitrate-nonahydrate (INN) in ethanol are interesting precursor solutions forthe production of iron oxide nanoparticles in these processes. However, no data onthermophysical properties of solutions of INN in ethanol are available in theliterature. Therefore, in the present work, the specific density, viscosity, thermalconductivity and molar isobaric heat capacity of solutions of INN in solvent mixturesof ethanol and water were measured at 101.3 kPa between 288.15 and 333.15 K,solvent compositions ranging from pure ethanol to pure water, and INN molalities upto 1.3 mol kg-1. Empirical correlations of the experimental data are provided.

Spray-flame synthesis of BaTi1-xZrxO3 nanoparticles for energy storage applications

2020 ◽  
Vol 46 (9) ◽  
pp. 13915-13924 ◽  
Author(s):  
A. Tarasov ◽  
V.V. Shvartsman ◽  
S. Shoja ◽  
D. Lewin ◽  
D.C. Lupascu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Flame Synthesis ◽  
Spray Flame ◽  
Energy Storage Applications

scholarly journals Spray‐flame synthesis of La(Fe, Co)O 3 nano‐perovskites from metal nitrates

AIChE Journal ◽  
2019 ◽  
Vol 66 (1) ◽  
Author(s):  
Steven Angel ◽  
Julian Neises ◽  
Maik Dreyer ◽  
Klaus Friedel Ortega ◽  
Malte Behrens ◽  
...  
Keyword(s):  
Flame Synthesis ◽  
Spray Flame ◽  
Metal Nitrates

Impact of Ambient Pressure on Titania Nanoparticle Formation During Spray-Flame Synthesis

2015 ◽  
Vol 15 (12) ◽  
pp. 9449-9456 ◽  
Author(s):  
Sebastian Hardt ◽  
Irenäus Wlokas ◽  
Christof Schulz ◽  
Hartmut Wiggers
Keyword(s):  
Ambient Pressure ◽  
Flame Synthesis ◽  
Nanoparticle Formation ◽  
Spray Flame ◽  
Titania Nanoparticle

scholarly journals Spray Flame Synthesis (SFS) of Lithium Lanthanum Zirconate (LLZO) Solid Electrolyte

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3472
Author(s):  
Md Yusuf Ali ◽  
Hans Orthner ◽  
Hartmut Wiggers
Keyword(s):  
Pyrochlore Phase ◽  
Lithium Carbonate ◽  
Synthesis Process ◽  
Flame Synthesis ◽  
Cubic Phase ◽  
Reaction Step ◽  
Lanthanum Zirconate ◽  
Spray Flame ◽  
Annealing Step ◽  
Short Annealing

A spray-flame reaction step followed by a short 1-h sintering step under O2 atmosphere was used to synthesize nanocrystalline cubic Al-doped Li7La3Zr2O12 (LLZO). The as-synthesized nanoparticles from spray-flame synthesis consisted of the crystalline La2Zr2O7 (LZO) pyrochlore phase while Li was present on the nanoparticles’ surface as amorphous carbonate. However, a short annealing step was sufficient to obtain phase pure cubic LLZO. To investigate whether the initial mixing of all cations is mandatory for synthesizing nanoparticulate cubic LLZO, we also synthesized Li free LZO and subsequently added different solid Li precursors before the annealing step. The resulting materials were all tetragonal LLZO (I41/acd) instead of the intended cubic phase, suggesting that an intimate intermixing of the Li precursor during the spray-flame synthesis is mandatory to form a nanoscale product. Based on these results, we propose a model to describe the spray-flame based synthesis process, considering the precipitation of LZO and the subsequent condensation of lithium carbonate on the particles’ surface.

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