K_0.36(H₂O) _y WS₂: a new layered compound for reversible hydrated potassium ion intercalation in aqueous electrolyte.

ABSTRACT: This work reports the synthesis of a new quasi two-dimensional layered compound, K_0.36(H₂O) _y WS₂, for aqueous potassium ion storage. Its crystal structure determined by single crystal X-ray diffraction is composed of WS₂ layers and disordered hydrated K⁺ stacking along the c direction alternately. Due to the large interlayer spacing and high conductivity, K_0.36(H₂O) _y WS₂ is demonstrated to be a stable host for reversible intercalation and de-intercalation of hydrated K⁺ in K₂SO₄ aqueous solution.

SUBMITTER: Mao Y 

PROVIDER: S-EPMC9073370 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature