Cryo-analytical STEM of frozen, aqueous dispersions of nanoparticles.
Analytical
Cryo
EDX
EELS
Nanoparticles
Journal
Micron (Oxford, England : 1993)
ISSN: 1878-4291
Titre abrégé: Micron
Pays: England
ID NLM: 9312850
Informations de publication
Date de publication:
05 2019
05 2019
Historique:
received:
30
11
2018
revised:
30
01
2019
accepted:
30
01
2019
pubmed:
15
2
2019
medline:
15
2
2019
entrez:
15
2
2019
Statut:
ppublish
Résumé
In situ characterisation of nanoparticle dispersion and surface coatings is required to further our understanding of the behaviour of nanoparticles in aqueous suspension. Using cryogenic transmission electron microscopy (cryo-TEM) it is possible to analyse a nanoparticle suspension in the frozen, hydrated state; however, this analysis is often limited to imaging alone. This work demonstrates the first use of analytical scanning TEM (STEM) in the examination of nanoparticles captured in a layer of vitreous ice. Imaging and analysis of frozen hydrated suspensions by both STEM energy dispersive X-ray (EDX) spectroscopy and electron energy loss spectroscopy (EELS) under cryogenic conditions demonstrates the identification and separation of CeO
Identifiants
pubmed: 30763878
pii: S0968-4328(18)30458-X
doi: 10.1016/j.micron.2019.01.013
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Pagination
35-42Informations de copyright
Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.