Journal article

Authors list: Abbondanza, Giuseppe; Grespi, Andrea; Larsson, Alfred; Dzhigaev, Dmitry; Glatthaar, Lorena; Weber, Tim; Blankenburg, Malte; Hegedüs, Zoltan; Lienert, Ulrich; Over, Herbert; Harlow, Gary S.; Lundgren, Edvin

Publication year: 2023

Journal: Nanotechnology

Volume number: 34

Issue number: 50

ISSN: 0957-4484

eISSN: 1361-6528

Open access status: Hybrid

DOI Link: https://doi.org/10.1088/1361-6528/acf66e

Publisher: IOP Publishing

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.

Harvard Citation style: Abbondanza, G., Grespi, A., Larsson, A., Dzhigaev, D., Glatthaar, L., Weber, T., et al. (2023) Hydride formation and dynamic phase changes during template-assisted Pd electrodeposition, Nanotechnology, 34(50), Article 505605. https://doi.org/10.1088/1361-6528/acf66e

APA Citation style: Abbondanza, G., Grespi, A., Larsson, A., Dzhigaev, D., Glatthaar, L., Weber, T., Blankenburg, M., Hegedüs, Z., Lienert, U., Over, H., Harlow, G., & Lundgren, E. (2023). Hydride formation and dynamic phase changes during template-assisted Pd electrodeposition. Nanotechnology. 34(50), Article 505605. https://doi.org/10.1088/1361-6528/acf66e