Molecular sieving of xylene isomers was achieved by Myoung Soo Lah et al. in their Research Article (<a target="_blank"
 title="Link to external resource"
 href="https://doi.org/10.1002/anie.202512244">e202512244</a>), using a pillar-layered MOF, Ni-HDB, incorporating DABCO pillars that block lateral diffusion and enforce transport through elliptical windows. This confined geometry enables record selectivity for PX and EB over OX via kinetic sieving, offering a new strategy for energy-efficient hydrocarbon separation.

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Outside Front Cover: Highly Selective Adsorption of Para‐Xylene, Ethylbenzene, and Explicit Exclusion of Ortho‐Xylene from Xylene Isomers Using a Pillar‐Layered MOF with Tuned Pore Channels

Molecular sieving of xylene isomers was achieved by Myoung Soo Lah et al. in their Research Article (e202512244), using a pillar-layered MOF, Ni-HDB, incorporating DABCO pillars that block lateral diffusion and enforce transport through elliptical windows. This confined geometry enables record se...

H
 δ

−–H
 δ

+ comproportionation serves as an effective chemical driven force for achieving the Li2+

 x
NHF
 x
–LiF solid electrolyte from LiH and NH4F precursor, which enables the stable cycling of all-solid-state batteries due to the accelerated Li-ion migration in Li2+

 x
NHF
 x
, favorable in situ formed Li4NH/LiF-enriched interphase at the electrode surface and the enhanced mechanical strengths.


 
<h2>Abstract</h2>
Nitride family compounds are among the earliest explored materials for solid electrolytes (SEs). The main challenge lies in effectively enhancing their electrochemical stability without compromising their excellent Li-ion conductivity and Li metal compatibility. Herein, a H
 δ

−–H
 δ

+ comproportionation reaction between LiH and NH4F is employed to synthesize a Li–N–H–F complex, consisting of Li2+

 x
NHF
 x
 matrix and dispersed LiF nanoparticles. Density functional calculation results show that the incorporated F atoms in Li2NH lattice lead to structural variation and electron density redistribution, providing a more connected Li-ion network with low migration energy barriers. More importantly, the interfacial side reactions between the Li–N–H–F complex and electrodes are strongly self-limited due to the blocking effect of the in situ formed Li4NH/LiF-enriched interphases. The newly identified interphase Li4NH exhibits fast Li-ion migration ability and intrinsic stability toward Li, facilitating stable Li plating/stripping. Based on the superiority in Li-ion conduction and electrode compatibility, the Li–N–H–F solid electrolyte films prepared via cold pressing with 0.5 wt% binder enable stable cycling of Li||Li, Li||TiS2, and Li||LiCoO2 all-solid-state batteries.

Artikel

Outside Front Cover: Highly Selective Adsorption of Para‐Xylene, Ethylbenzene, and Explicit Exclusion of Ortho‐Xylene from Xylene Isomers Using a Pillar‐Layered MOF with Tuned Pore Channels

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Hδ−–Hδ+ Comproportionation Enables Stable Li–N–H–F Solid Electrolyte

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