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September 30, 2025Advanced ScienceOpen Access

Identifying Beneficial and Adverse Co4+ Species in Cobalt‐Based Oxygen Evolution Catalysts via Precursor Polymorphism Engineering

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Authors

ZLZhongheng LiZSZheng ShuLLLun Li

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Overview

This research identifies the effects of Co4+ species and phase variation on the catalytic performance of cobalt-based materials.

Key Points

  • γ-CoO2 exhibits superior catalytic performance with lower overpotentials and enhanced stability.
  • Thermal annealing facilitates the stabilization of distinct cobalt oxysulfide phases for optimized reactivity.
  • Mechanistic studies reveal different pathways for CoO2 phases impacting OER activity.
  • Understanding Co4+ micro-environments enhances the potential of transition-metal catalysts.

Cite This Study

Li et al. (2025) studied this question.

synapsesocial.com/papers/68dc1e438a7d58c25ebb24b0https://doi.org/10.1002/advs.202509145
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