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Title: Synthesis of complex rare earth nanostructures using in situ liquid cell transmission electron microscopy

Journal Article · · Nanoscale Advances
DOI:https://doi.org/10.1039/C9NA00197B· OSTI ID:1509494

Energy and cost efficient synthesis pathways are important for the production, processing, and recycling of rare earth metals necessary for a range of advanced energy and environmental applications. Here, we present results of successful in situ liquid cell transmission electron microscopy production and imaging of rare earth element nanostructure synthesis, from aqueous salt solutions, via radiolysis due to exposure to a 200 keV electron beam. Nucleation, growth, and crystallization processes for nanostructures formed in yttrium(III) nitrate hydrate (Y(NO3)3·4H2O), europium(III) chloride hydrate (EuCl3·6H2O), and lanthanum(III) chloride hydrate (LaCl3·7H2O) solutions are discussed. In situ electron diffraction analysis in a closed microfluidic configuration indicated that rare earth metal, salt, and metal oxide structures were synthesized. Real-time imaging of nanostructure formation was compared in closed cell and flow cell configurations. Interestingly, this work also includes the first known collection of automated crystal orientation mapping data through liquid using a microfluidic transmission electron microscope stage, which permits the deconvolution of amorphous and crystalline features (orientation and interfaces) inside the resulting nanostructures.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Understanding and Control of Acid Gas-induced Evolution of Materials for Energy (UNCAGE-ME); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012577; AC04-94AL85000
OSTI ID:
1509494
Alternate ID(s):
OSTI ID: 1515207
Report Number(s):
SAND-2019-4613J; NAADAI
Journal Information:
Nanoscale Advances, Journal Name: Nanoscale Advances Vol. 1 Journal Issue: 6; ISSN 2516-0230
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United Kingdom
Language:
English

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Figures / Tables (11)


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