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Endogenous Interfacial Mo-C/N-Mo-S Bonding Regulates the Active Mo Sites for Maximized Li + Storage Areal Capacity
Ist Teil von
Small (Weinheim an der Bergstrasse, Germany), 2024-03, p.e2311773-e2311773
Ort / Verlag
Germany
Erscheinungsjahr
2024
Link zum Volltext
Quelle
Wiley Online Library
Beschreibungen/Notizen
Active sites, mass loading, and Li-ion diffusion coefficient are the benchmarks for boosting the areal capacity and storage capability of electrode materials for lithium-ion batteries. However, simultaneously modulating these criteria to achieve high areal capacity in LIBs remains challenging. Herein, MoS
is considered as a suitable electroactive host material for reversible Li-ion storage and establish an endogenous multi-heterojunction strategy with interfacial Mo-C/N-Mo-S coordination bonding that enables the concurrent regulation of these benchmarks. This strategy involves architecting 3D integrated conductive nanostructured frameworks composed of Mo
C-MoN@MoS
on carbon cloth (denoted as C/MMMS) and refining the sluggish kinetics in the MoS
-based anodes. Benefiting from the rich hetero-interface active sites, optimized Li adsorption energy, and low diffusion barrier, C/MMMS reaches a mass loading of 12.11 mg cm
and showcases high areal capacity and remarkable rate capability of 9.6 mAh cm
@0.4 mA cm
and 2.7 mAh cm
@6.0 mA cm
, respectively, alongside excellent stability after 500 electrochemical cycles. Moreover, this work not only affirms the outstanding performance of the optimized C/MMMS as an anode material for supercapacitors, underscoring its bifunctionality but also offers valuable insight into developing endogenous transition metal compound electrodes with high mass loading for the next-generation high areal capacity energy storage devices.
Sprache
Englisch
Identifikatoren
ISSN: 1613-6810
eISSN: 1613-6829
DOI: 10.1002/smll.202311773
Titel-ID: cdi_proquest_miscellaneous_2938287192
Format
–
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