articleAdvanced MaterialsApr 3, 2024GREEN OA

Electronic Spin Alignment within Homologous NiS 2 /NiSe 2 Heterostructures to Promote Sulfur Redox Kinetics in Lithium‐Sulfur Batteries

CHChen HuangJYJing YuCZChaoyue ZhangZCZhibiao CuiJCJiakun Chen

Institut de Recerca en Energia de Catalunya · Universitat de Barcelona · +8 more institutions

PubMed
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Abstract

Abstract The catalytic activation of the Li‐S reaction is fundamental to maximize the capacity and stability of Li‐S batteries (LSBs). Current research on Li‐S catalysts mainly focuses on optimizing the energy levels to promote adsorption and catalytic conversion, while frequently overlooking the electronic spin state influence on charge transfer and orbital interactions. Here, hollow NiS 2 /NiSe 2 heterostructures encapsulated in a nitrogen‐doped carbon matrix (NiS 2 /NiSe 2 @NC) are synthesized and used as a catalytic additive in sulfur cathodes. The NiS 2 /NiSe 2 heterostructure promotes the spin splitting of the 3d orbital, driving the Ni 3+ transformation from low to high spin. This high spin…

Citation impact

119
total citations
FWCI
22.70
Percentile
100%
References
90
Citations per year

Authors

20

Topics & keywords

Topics
Keywords
  • Materials science
  • Heterojunction
  • Catalysis
  • Sulfur
  • Cathode
  • Redox
  • Adsorption
  • Lithium (medication)
UN Sustainable Development Goals
  • Affordable and clean energy
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