材料科学
催化作用
硫黄
电解质
纳米技术
纳米线
锂(药物)
化学工程
化学
电极
有机化学
物理化学
医学
内分泌学
工程类
冶金
作者
Yingbo Xiao,Sijia Guo,Yucui Xiang,Dixiong Li,Cheng Zheng,Yuan Ouyang,Alexey Cherevan,Li‐Yong Gan,Dominik Eder,Qi Zhang,Shaoming Huang
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2023-11-13
卷期号:8 (12): 5107-5115
被引量:11
标识
DOI:10.1021/acsenergylett.3c01698
摘要
Both configuration match and electronic structure are vital for catalysts to efficiently promote the conversion of lithium polysulfides (LiPSs) in lithium–sulfur batteries (LSBs), which are however difficult to tailor in traditional catalysts that generally have a single active center. Herein, a series of dual-active-center MOFs (D-MOFs) were elaborated to manipulate the distance between different polar active sites and regulate the electronic structure of the metal center, which can match the configuration of long-chain LiPSs and optimize the metal–sulfur orbital hybridization. Moreover, in situ axial assembly of customized D-MOFs on carbon nanotubes delivers hierarchical sulfur hosts, which can remarkably improve the LSB performance, realizing high areal capacity (10.04 mAh cm–2) under high sulfur loading and lean electrolytes, and a pouch cell with high energy density (310.7 Wh kg–1). This work gives insight into the multiscale design of multifunctional catalytic MOFs, promising advancements in catalyst development for high-performance LSBs.
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