articleNature CommunicationsJan 2, 2025GOLD OA

Transition metal vacancy and position engineering enables reversible anionic redox reaction for sodium storage

CCCongcong CaiXLXinyuan LiJLJiantao LiRYRuohan YuPHPing Hu

Wuhan University of Technology · Argonne National Laboratory · +1 more institution

PubMed
Indexed incrossrefdoajpubmed

Abstract

Triggering the anionic redox reaction is an effective approach to boost the capacity of layered transition metal (TM) oxides. However, the irreversible oxygen release and structural deterioration at high voltage remain conundrums. Herein, a strategy for Mg ion and vacancy dual doping with partial TM ions pinned in the Na layers is developed to improve both the reversibility of anionic redox reaction and structural stability of layered oxides. Both the Mg ions and vacancies (□) are contained in the TM layers, while partial Mn ions (~1.1%) occupy the Na-sites. The introduced Mg ions combined with vacancies not only create abundant nonbonding O 2p orbitals in favor of high oxygen redox capacity, but also suppress…

Citation impact

56
total citations
FWCI
32.38
Percentile
100%
References
59
Citations per year

Authors

14

Topics & keywords

Topics
Keywords
  • Redox
  • Ion
  • Oxide
  • Vacancy defect
  • Materials science
  • Inorganic chemistry
  • Transition metal
  • Sodium
No related works found for this paper.

Funding