Amorphous Monolayer MoS ₃ Nanosheets for Rapid and Robust Sodium‐Ion Storage

Sodium‐based batteries are attractive candidates for next‐generation energy storage due to the natural abundance of sodium, environmental compatibility, and low cost. However, their practical application is hindered by the poor electrical conductivity, sluggish redox kinetics, large volume expansion, and limited electrode compatibility of metal sulfide materials. Amorphous structures, with long‐range atomic disorder, provide isotropic ion transport channels that can mitigate these limitations. In this work, we report the synthesis of amorphous monolayer MoS 3 nanosheets on reduced graphene oxide (a‐MoS 3 /rGO) using a precisely controlled interface‐confined wet‐chemistry method. This amorphous heterostructure demonstrates a high reversible capacity (688.8 mAh g −1 ), excellent cycling stability (2000 cycles), remarkable rate capability, and superior full‐cell performance. Kinetic analysis and structural characterizations attribute this exceptional performance to the increased number of reactive sites and enhanced electron/ion transport arising from the synergistic interaction between the isotropic amorphous MoS 3 structure and the highly conductive rGO network.