<p>This work delineates a simple and efficient method for synthesizing a hybrid material comprising Ag<sub>2</sub>MoO<sub>4</sub> nanoparticles anchored on nitrogen-doped reduced graphene oxide (AMO/NRGO) for high-performance supercapacitor applications. The synthesized compounds were validated and characterized using structural, functional, nitrogen adsorption–desorption, surface, elemental analysis, and electrochemical assessments. The AMO/NRGO hybrid electrode has exceptional electrochemical characteristics, with a specific capacitance of 456 Fg<sup>−1</sup> at a current density of 1 Ag<sup>−1</sup> and 231 Fg<sup>−1</sup> at 1 Ag<sup>−1</sup>, along with extraordinary cycle stability, retaining 93.5% of its specific capacitance after 5000 cycles. Consequently, the AMO/NRGO composite may serve as a promising electrode material for future energy applications. The asymmetric supercapacitor (ASC) using AMO/NRGO//AC electrodes demonstrates exceptional capacitive performance (275 Fg<sup>−1</sup> at 1 Ag<sup>−1</sup>) and superior cycle stability (90.5% at 1 Ag<sup>−1</sup> after 5000 cycles). The ASC demonstrated an energy density of 48.5 Wh kg<sup>−1</sup> at a power density of 976 W kg−1. Consequently, AMO/NRGO//AC ASC is anticipated to be an advantageous material for high-performance applications involving energy storage.</p>

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Ag2MoO4 Nanoparticles Anchored on Nitrogen-Doped Graphene Nanosheets as Electrode Material for Supercapacitors

  • S. P. Saravanan,
  • M. Nagoor Meeran,
  • A. Sankar,
  • D. Thillaikkarasi

摘要

This work delineates a simple and efficient method for synthesizing a hybrid material comprising Ag2MoO4 nanoparticles anchored on nitrogen-doped reduced graphene oxide (AMO/NRGO) for high-performance supercapacitor applications. The synthesized compounds were validated and characterized using structural, functional, nitrogen adsorption–desorption, surface, elemental analysis, and electrochemical assessments. The AMO/NRGO hybrid electrode has exceptional electrochemical characteristics, with a specific capacitance of 456 Fg−1 at a current density of 1 Ag−1 and 231 Fg−1 at 1 Ag−1, along with extraordinary cycle stability, retaining 93.5% of its specific capacitance after 5000 cycles. Consequently, the AMO/NRGO composite may serve as a promising electrode material for future energy applications. The asymmetric supercapacitor (ASC) using AMO/NRGO//AC electrodes demonstrates exceptional capacitive performance (275 Fg−1 at 1 Ag−1) and superior cycle stability (90.5% at 1 Ag−1 after 5000 cycles). The ASC demonstrated an energy density of 48.5 Wh kg−1 at a power density of 976 W kg−1. Consequently, AMO/NRGO//AC ASC is anticipated to be an advantageous material for high-performance applications involving energy storage.