In Situ Grazing Incidence X-ray Total Scattering Reveals the Effect of the “Two-Step” Method for the Anodization of Aluminum Surfaces
(2025) In ACS Applied Materials and Interfaces 17(33). p.46887-46898- Abstract
Thanks to its ability to form a lattice of self-ordered nanosized pores, nanoporous anodic aluminum oxide (NP-AAO) is a promising material with diverse applications, for example, as membrane for the controlled deposition of catalysts. NP-AAO is obtained by the anodization of an aluminum substrate under specific pH and voltage conditions. However, the growth mechanism of the oxide is still under debate. We shed light on this process by investigating structural changes at the atomic scale using pair distribution function (PDF) analysis. We thus performed in situ X-ray total scattering experiments under grazing incidence conditions during the anodization of aluminum substrates exhibiting different crystallographic facets. By doing so, we... (More)
Thanks to its ability to form a lattice of self-ordered nanosized pores, nanoporous anodic aluminum oxide (NP-AAO) is a promising material with diverse applications, for example, as membrane for the controlled deposition of catalysts. NP-AAO is obtained by the anodization of an aluminum substrate under specific pH and voltage conditions. However, the growth mechanism of the oxide is still under debate. We shed light on this process by investigating structural changes at the atomic scale using pair distribution function (PDF) analysis. We thus performed in situ X-ray total scattering experiments under grazing incidence conditions during the anodization of aluminum substrates exhibiting different crystallographic facets. By doing so, we were able to track the evolution of the local structure of aluminum oxide species forming at the oxide-electrolyte interface over time.
(Less)
- author
- organization
- publishing date
- 2025-08-20
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- amorphous oxide, grazing incidence, in situstudies, NP-AAO, X-ray total scattering
- in
- ACS Applied Materials and Interfaces
- volume
- 17
- issue
- 33
- pages
- 12 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:105013886203
- pmid:40789748
- ISSN
- 1944-8244
- DOI
- 10.1021/acsami.5c05251
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2025 The Authors. Published by American Chemical Society
- id
- 717782be-f0a1-4823-a721-59741d342170
- date added to LUP
- 2025-10-01 08:45:37
- date last changed
- 2025-10-06 08:10:12
@article{717782be-f0a1-4823-a721-59741d342170, abstract = {{<p>Thanks to its ability to form a lattice of self-ordered nanosized pores, nanoporous anodic aluminum oxide (NP-AAO) is a promising material with diverse applications, for example, as membrane for the controlled deposition of catalysts. NP-AAO is obtained by the anodization of an aluminum substrate under specific pH and voltage conditions. However, the growth mechanism of the oxide is still under debate. We shed light on this process by investigating structural changes at the atomic scale using pair distribution function (PDF) analysis. We thus performed in situ X-ray total scattering experiments under grazing incidence conditions during the anodization of aluminum substrates exhibiting different crystallographic facets. By doing so, we were able to track the evolution of the local structure of aluminum oxide species forming at the oxide-electrolyte interface over time.</p>}}, author = {{Magnard, Nicolas P.L. and Abbondanza, Giuseppe and Junkers, Laura S. and Glatthaar, Lorena and Grespi, Andrea and Spriewald Luciano, Alexander and Igoa Saldaña, Fernando and Dippel, Ann Christin and Vinogradov, Nikolay and Over, Herbert and Jensen, Kirsten M.Ø. and Lundgren, Edvin}}, issn = {{1944-8244}}, keywords = {{amorphous oxide; grazing incidence; in situstudies; NP-AAO; X-ray total scattering}}, language = {{eng}}, month = {{08}}, number = {{33}}, pages = {{46887--46898}}, publisher = {{The American Chemical Society (ACS)}}, series = {{ACS Applied Materials and Interfaces}}, title = {{<i>In Situ</i> Grazing Incidence X-ray Total Scattering Reveals the Effect of the “Two-Step” Method for the Anodization of Aluminum Surfaces}}, url = {{http://dx.doi.org/10.1021/acsami.5c05251}}, doi = {{10.1021/acsami.5c05251}}, volume = {{17}}, year = {{2025}}, }