Hydride formation and dynamic phase changes during template-assisted Pd electrodeposition
(2023) In Nanotechnology 34(50).- Abstract
- We investigated the structural evolution of electrochemically fabricated Pd nanowires in situ by means of grazing-incidence transmission small- and wide-angle x-ray scattering (GTSAXS and GTWAXS), x-ray fluorescence (XRF) and two-dimensional surface optical reflectance (2D-SOR). This shows how electrodeposition and the hydrogen evolution reaction (HER) compete and interact during Pd electrodepositon. During the bottom-up growth of the nanowires, we show that β-phase Pd hydride is formed. Suspending the electrodeposition then leads to a phase transition from β-phase Pd hydride to α-phase Pd. Additionally, we find that grain coalescence later hinders the incorporation of hydrogen in the Pd unit cell. GTSAXS and 2D-SOR provide complementary... (More)
- We investigated the structural evolution of electrochemically fabricated Pd nanowires in situ by means of grazing-incidence transmission small- and wide-angle x-ray scattering (GTSAXS and GTWAXS), x-ray fluorescence (XRF) and two-dimensional surface optical reflectance (2D-SOR). This shows how electrodeposition and the hydrogen evolution reaction (HER) compete and interact during Pd electrodepositon. During the bottom-up growth of the nanowires, we show that β-phase Pd hydride is formed. Suspending the electrodeposition then leads to a phase transition from β-phase Pd hydride to α-phase Pd. Additionally, we find that grain coalescence later hinders the incorporation of hydrogen in the Pd unit cell. GTSAXS and 2D-SOR provide complementary information on the volume fraction of the pores occupied by Pd, while XRF was used to monitor the amount of Pd electrodeposited. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/a65b3086-1f51-4eef-b6e9-2e01723a7a97
- author
- Abbondanza, Giuseppe LU
- contributor
- Grespi, Andrea LU ; Larsson, Alfred LU and Lundgren, Edvin LU
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nanotechnology
- volume
- 34
- issue
- 50
- article number
- 505605
- publisher
- IOP Publishing
- external identifiers
-
- pmid:37666238
- scopus:85182023547
- ISSN
- 1361-6528
- DOI
- 10.1088/1361-6528/acf66e
- language
- English
- LU publication?
- yes
- id
- a65b3086-1f51-4eef-b6e9-2e01723a7a97
- date added to LUP
- 2023-10-23 15:09:50
- date last changed
- 2024-02-15 14:20:57
@article{a65b3086-1f51-4eef-b6e9-2e01723a7a97,
abstract = {{We investigated the structural evolution of electrochemically fabricated Pd nanowires in situ by means of grazing-incidence transmission small- and wide-angle x-ray scattering (GTSAXS and GTWAXS), x-ray fluorescence (XRF) and two-dimensional surface optical reflectance (2D-SOR). This shows how electrodeposition and the hydrogen evolution reaction (HER) compete and interact during Pd electrodepositon. During the bottom-up growth of the nanowires, we show that β-phase Pd hydride is formed. Suspending the electrodeposition then leads to a phase transition from β-phase Pd hydride to α-phase Pd. Additionally, we find that grain coalescence later hinders the incorporation of hydrogen in the Pd unit cell. GTSAXS and 2D-SOR provide complementary information on the volume fraction of the pores occupied by Pd, while XRF was used to monitor the amount of Pd electrodeposited.}},
author = {{Abbondanza, Giuseppe}},
issn = {{1361-6528}},
language = {{eng}},
number = {{50}},
publisher = {{IOP Publishing}},
series = {{Nanotechnology}},
title = {{Hydride formation and dynamic phase changes during template-assisted Pd electrodeposition}},
url = {{http://dx.doi.org/10.1088/1361-6528/acf66e}},
doi = {{10.1088/1361-6528/acf66e}},
volume = {{34}},
year = {{2023}},
}