Premium
Coordination‐Driven Hierarchical Assembly of Silver Nanoparticles on MoS 2 Nanosheets for Improved Lithium Storage
Author(s) -
Pan Long,
Liu YiTao,
Xie XuMing,
Zhu XiaoDong
Publication year - 2014
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201301690
Subject(s) - materials science , nanoparticle , nanotechnology , lithium (medication) , economies of agglomeration , hybrid material , intercalation (chemistry) , chemical engineering , chemistry , inorganic chemistry , medicine , endocrinology , engineering
We report a novel strategy for the hierarchical assembly of Ag nanoparticles (NPs) on MoS 2 nanosheets through coordination by using a multifunctional organic ligand. The presence of Ag NPs on the surface of MoS 2 nanosheets inhibits their agglomeration, thereby providing increased interlayer spacing for easy Li + ion intercalation. Such a unique hybrid architecture also ensures sufficient percolation pathways on the whole surface of the MoS 2 nanosheets. Moreover, the high rigidity and low deformability of the Ag NPs effectively preserve the hybrid architecture during the charge–discharge process, which translates into a high cycle stability. A prominent synergistic effect between MoS 2 and Ag is witnessed. When the Ag content is only 5 wt %, the Ag–MoS 2 hybrid delivers a reversible capacity as high as 920 mA h g −1 at a current density of 100 mA g −1 , making the Ag–MoS 2 hybrid an attractive candidate for next‐generation LIBs.