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Updated: Jul 8, 2025

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关于Li-S电池中单原子催化剂对S中毒作用的原子洞察力

Chang Li1, Haibo Luo1, Fengyu Li2

  • 1Hunan Institute of Science and Technology, Yueyang 414006, China.

ACS omega
|December 11, 2023
PubMed
概括

硫电池中的单原子催化剂 (SAC) 由于强烈的金属-硫结合,可能遭受硫中毒. 优化催化剂设计需要平衡活动和抵抗硫中毒.

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Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
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A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
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