Heteroatoms Synergistic Anchoring Vacancies in Phosphorus-Doped CoSe2 Enable Ultrahigh Activity and Stability in Li–S Batteries (IMAGE)
Caption
- A volcano-type relationship between catalytic activity and vacancy concentration is revealed based on systematic investigation on selenium-vacancy-rich CoSe2.
- A novel “heteroatoms synergistic anchoring vacancies” tactic is firstly proposed to achieve P-doped CoSe2 with remained rich selenium vacancies (P-CS-Vo-0.5).
- It has been demonstrated that P doping lowers Se vacancy surface energy and effectively “pins” active sites, markedly suppressing dynamic migration of vacancies.
Credit
Xiaoya Zhou, Wei Mao, Chengwei Ye, Qi Liang, Peng Wang, Xuebin Wang, Shaochun Tang.
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CC BY-NC-ND