---
_id: '62798'
abstract:
- lang: eng
  text: We investigated electrodeposited nanoparticulate nickel selenide (pre)catalysts
    that transform into nickel oxides/oxyhydroxides under oxygen evolution reaction
    conditions in alkaline solutions. Previous studies of this transformation were
    conducted at lower current densities than those of industrial relevance (≥1 A
    cm–2). We used ultramicroelectrodes (UMEs) to achieve such current densities,
    benefiting from their small size, ensuring low absolute currents and low ohmic
    drop but high current densities. Morphological degradation of the catalyst material
    was only observed at current densities exceeding 1 A cm–2 but not for smaller
    ones. Using X-ray absorption, X-ray photoemission spectroscopy, and X-ray diffraction,
    we confirmed that the degradation was accompanied by the literature-known transformation
    of nanoparticulate Ni3Se2 (bulk)/NiSe (surface) into nickel oxyhydroxide. The
    transformation of the precatalyst goes along with a significant improvement in
    the charge transfer kinetics observed by decreasing Tafel slopes with ongoing
    experimental time extracted from cyclic voltammetry (CV) experiments and electrochemical
    impedance spectroscopy (EIS) in the high-frequency range. However, these kinetic
    improvements are accompanied by limitations in mass transport concluded from decreasing
    current responses at high overpotentials in CVs and increasing impedance in the
    low-frequency range of the EIS spectra after extended CV cycling. These mass transport
    limitations originated from morphological degradations at the UME exceeding 1
    A cm–2 which we proved by applying identical location scanning electron microscopy.
    This has not been reported in studies that have been limited to lower current
    densities before. Our findings showcase how UMEs can be used to study (pre)catalysts
    (herein nickel selenides) under current densities of industrial relevance in the
    absence of ohmic drop-related ambiguities, combined with in-depth materials characterization
    studies, e.g., identical location microscopy and advanced spectroscopic methods.
    This approach enables direct evaluation and comparison of catalyst materials and
    thus demonstrates how to overcome long-standing limitations of electrocatalyst
    design and testing.
article_type: original
author:
- first_name: Felix
  full_name: Hiege, Felix
  last_name: Hiege
- first_name: Chun-Wai
  full_name: Chang, Chun-Wai
  last_name: Chang
- first_name: Oliver
  full_name: Trost, Oliver
  last_name: Trost
- first_name: Charlotte E. R.
  full_name: van Halteren, Charlotte E. R.
  last_name: van Halteren
- first_name: Pouya
  full_name: Hosseini, Pouya
  last_name: Hosseini
- first_name: Georg
  full_name: Bendt, Georg
  last_name: Bendt
- first_name: Stephan
  full_name: Schulz, Stephan
  last_name: Schulz
- first_name: Zhenxing
  full_name: Feng, Zhenxing
  last_name: Feng
- first_name: Julia
  full_name: Linnemann, Julia
  id: '116779'
  last_name: Linnemann
  orcid: 0000-0001-6883-5424
- first_name: Kristina
  full_name: Tschulik, Kristina
  last_name: Tschulik
citation:
  ama: Hiege F, Chang C-W, Trost O, et al. Morphological Degradation of Oxygen Evolution
    Reaction-Electrocatalyzing Nickel Selenides at Industrially Relevant Current Densities.
    <i>ACS Applied Materials &#38; Interfaces</i>. 2025;17(29):41893-41903. doi:<a
    href="https://doi.org/10.1021/acsami.5c05381">10.1021/acsami.5c05381</a>
  apa: Hiege, F., Chang, C.-W., Trost, O., van Halteren, C. E. R., Hosseini, P., Bendt,
    G., Schulz, S., Feng, Z., Linnemann, J., &#38; Tschulik, K. (2025). Morphological
    Degradation of Oxygen Evolution Reaction-Electrocatalyzing Nickel Selenides at
    Industrially Relevant Current Densities. <i>ACS Applied Materials &#38; Interfaces</i>,
    <i>17</i>(29), 41893–41903. <a href="https://doi.org/10.1021/acsami.5c05381">https://doi.org/10.1021/acsami.5c05381</a>
  bibtex: '@article{Hiege_Chang_Trost_van Halteren_Hosseini_Bendt_Schulz_Feng_Linnemann_Tschulik_2025,
    title={Morphological Degradation of Oxygen Evolution Reaction-Electrocatalyzing
    Nickel Selenides at Industrially Relevant Current Densities}, volume={17}, DOI={<a
    href="https://doi.org/10.1021/acsami.5c05381">10.1021/acsami.5c05381</a>}, number={29},
    journal={ACS Applied Materials &#38; Interfaces}, publisher={American Chemical
    Society (ACS)}, author={Hiege, Felix and Chang, Chun-Wai and Trost, Oliver and
    van Halteren, Charlotte E. R. and Hosseini, Pouya and Bendt, Georg and Schulz,
    Stephan and Feng, Zhenxing and Linnemann, Julia and Tschulik, Kristina}, year={2025},
    pages={41893–41903} }'
  chicago: 'Hiege, Felix, Chun-Wai Chang, Oliver Trost, Charlotte E. R. van Halteren,
    Pouya Hosseini, Georg Bendt, Stephan Schulz, Zhenxing Feng, Julia Linnemann, and
    Kristina Tschulik. “Morphological Degradation of Oxygen Evolution Reaction-Electrocatalyzing
    Nickel Selenides at Industrially Relevant Current Densities.” <i>ACS Applied Materials
    &#38; Interfaces</i> 17, no. 29 (2025): 41893–903. <a href="https://doi.org/10.1021/acsami.5c05381">https://doi.org/10.1021/acsami.5c05381</a>.'
  ieee: 'F. Hiege <i>et al.</i>, “Morphological Degradation of Oxygen Evolution Reaction-Electrocatalyzing
    Nickel Selenides at Industrially Relevant Current Densities,” <i>ACS Applied Materials
    &#38; Interfaces</i>, vol. 17, no. 29, pp. 41893–41903, 2025, doi: <a href="https://doi.org/10.1021/acsami.5c05381">10.1021/acsami.5c05381</a>.'
  mla: Hiege, Felix, et al. “Morphological Degradation of Oxygen Evolution Reaction-Electrocatalyzing
    Nickel Selenides at Industrially Relevant Current Densities.” <i>ACS Applied Materials
    &#38; Interfaces</i>, vol. 17, no. 29, American Chemical Society (ACS), 2025,
    pp. 41893–903, doi:<a href="https://doi.org/10.1021/acsami.5c05381">10.1021/acsami.5c05381</a>.
  short: F. Hiege, C.-W. Chang, O. Trost, C.E.R. van Halteren, P. Hosseini, G. Bendt,
    S. Schulz, Z. Feng, J. Linnemann, K. Tschulik, ACS Applied Materials &#38; Interfaces
    17 (2025) 41893–41903.
date_created: 2025-12-03T15:08:47Z
date_updated: 2025-12-03T16:27:30Z
department:
- _id: '985'
doi: 10.1021/acsami.5c05381
extern: '1'
intvolume: '        17'
issue: '29'
keyword:
- Electrocatalysis
- oxygen evolution reaction
- nickel selenide
- microelectrode
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://pubs.acs.org/doi/full/10.1021/acsami.5c05381
oa: '1'
page: 41893-41903
publication: ACS Applied Materials & Interfaces
publication_identifier:
  issn:
  - 1944-8244
  - 1944-8252
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Morphological Degradation of Oxygen Evolution Reaction-Electrocatalyzing Nickel
  Selenides at Industrially Relevant Current Densities
type: journal_article
user_id: '116779'
volume: 17
year: '2025'
...