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Strong adsorption and catalysis for lithium polysulfides (LiPSs) are critical toward the electrochemical stability of Li‐S batteries. Herein, a hollow sandwiched nanoparticle is put forward to enhance the adsorption‐catalysis‐conversion dynamic of sulfur species. The outer ultrathin Ni(OH)2 nanosheets not only confine LiPSs via both physical encapsulation and chemical adsorption, but also promote...
Computational Screening for Electrocatalysts
In article number 2103705, Jeong Woo Han and co‐workers introduce the computational screening route for highly and selective metal‐nitrogen‐doped carbon (M‐N‐C) catalysts in electrochemical CO2 reduction. Identified M‐N‐C catalysts are synthesized and characterized for experimental validation. This screening route provides a feasible path toward rational...
To identify high‐efficiency metal—nitrogen‐doped (M—N—C) electrocatalysts for the electrochemical CO2‐to‐CO reduction reaction (CO2RR), a method that uses density functional theory calculation is presented to evaluate their selectivity, activity, and structural stability. Twenty‐three M—N4—C catalysts are evaluated, and three of them (M = Fe, Co, or Ni) are identified as promising candidates. They...
In this paper, 2D borophene is synthesized through a liquid‐phase exfoliation. The morphology and structure of as‐prepared borophene are systemically analyzed, and the Z‐scan is used to measure the nonlinear optical properties. It is found that the saturable absorber (SA) properties of borophene make it serve as an excellent broadband optical switch, which is strongly used for mode‐locking in near‐...
Materials exhibiting persistent luminescence (PersL) have great prospect in optoelectronic and biomedical applications such as optical information storage, bio‐imaging, and so on. Unfortunately, PersL materials with multimode emission properties have been rarely reported, although they are expected to be very desirable in multilevel anti‐counterfeiting and encryption applications. Herein, Cr3+‐doped...
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