Search: onr:"swepub:oai:research.chalmers.se:d5ae41ca-8559-4b8d-a0aa-ca20903983d0" >
Competing oxidation...
Competing oxidation mechanisms in Cu nanoparticles and their plasmonic signatures
-
- Nilsson, Sara, 1990 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Nielsen, Monia R. (author)
- Danmarks Tekniske Universitet,Technical University of Denmark
-
- Fritzsche, Joachim, 1977 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
show more...
-
- Langhammer, Christoph, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Kadkhodazadeh, Shima (author)
- Danmarks Tekniske Universitet,Technical University of Denmark
-
show less...
-
(creator_code:org_t)
- 2022
- 2022
- English.
-
In: Nanoscale. - : Royal Society of Chemistry (RSC). - 2040-3372 .- 2040-3364. ; 14:23, s. 8332-8341
- Related links:
-
https://doi.org/10.1...
-
show more...
-
https://research.cha...
-
show less...
Abstract
Subject headings
Close
- Chemical reactions involving nanoparticles often follow complex processes. In this respect, real-time probing of single nanoparticles under reactive conditions is crucial for uncovering the mechanisms driving the reaction pathway. Here, we have captured in situ the oxidation of single Cu nanoparticles to unravel a sequential competitive activation of different mechanisms at temperatures 50-200 degrees C. Using environmental scanning transmission electron microscopy, we monitor the evolution of oxide formation with sub-nanometre spatial resolution, and show how the prevalence of oxide island nucleation, Cabrera-Mott, Valensi-Carter and Kirkendall mechanisms under different conditions determines the morphology of the particles. Moreover, using in situ electron energy-loss spectroscopy, we probe the localised surface plasmons of individual particles during oxidation, and with the aid of finite-difference time-domain electrodynamic simulations investigate the signature of each mechanism in their plasmonic response. Our results shed light on the rich and intricate processes involved in the oxidation of nanoparticles, and provide in-depth insight into how these processes govern their morphology and optical response, beneficial for applications in catalysis, sensing, nanomedicine and plasmonics.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
-
Nanoscale
(Search for host publication in LIBRIS)
To the university's database