Retraction notices

Porous carbon polyhedrons with exclusive Cu-Nx moieties as highly effective electrocatalysts for oxygen reduction reactions

Type

Retraction

Notice date

7/16/2026 0:00

Journal

International Journal of Hydrogen Energy

Publisher

Elsevier

Notice DOI

10.1016/j.ijhydene.2026.156515

Original paper DOI

10.1016/j.ijhydene.2021.06.057

Reasons

• Concerns/Issues about Authorship/Affiliation
• Investigation by Journal/Publisher
• Objections by Author(s)
• Unreliable Results and/or Conclusions

Matching venue names

Name match only, not an authoritative journal identifier.

• International Journal of Hydrogen Energy