Journal Article

PUBDB-2025-03958

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png In Situ Grazing Incidence X-ray Total Scattering Reveals the Effect of the “Two-Step” Method for the Anodization of Aluminum Surfaces

Magnard, N. (Corresponding author)Extern* ; Abbondanza, G.Extern* ; Junkers, L. S.Extern* ; Glatthaar, L.Extern* ; Grespi, A.Extern* ; Spriewald Luciano, A.Extern* ; Igoa Saldaña, F.XFEL.EU*DESY* ; Dippel, A.-C.DESY* ; Vinogradov, N.Extern* ; Over, H.Extern* ; Jensen, K. M. Ø. (Corresponding author)Extern* ; Lundgren, E. (Corresponding author)Extern*

2025
Soc. Washington, DC

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Please use a persistent id in citations: doi:10.1021/acsami.5c05251

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 were able to track the evolution of the local structure of aluminum oxide species forming at the oxide-electrolyte interface over time.

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Contributing Institute(s):

1. FS DOOR-User (FS DOOR-User)
2. Experimentebetreuung PETRA III (FS-PET-D)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. FS-Proposal: I-20220846 EC (I-20220846-EC) (I-20220846-EC)
4. SWEDEN-DESY - SWEDEN-DESY Collaboration (2020_Join2-SWEDEN-DESY) (2020_Join2-SWEDEN-DESY)

Experiment(s):

1. PETRA Beamline P21.1 (PETRA III)

Appears in the scientific report 2025

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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