Stable supercapacitor electrode based on two-dimensional high nucleus silver nano-clusters as a green energy source

Area of Science:

• Materials Science
• Nanotechnology
• Electrochemistry

Background:

• Atomically precise silver nanoclusters (Ag-NCs) are a rapidly growing research field due to their unique properties.
• Understanding Ag-NC synthesis mechanisms is crucial for controlling size, shape, and morphology.
• Complex self-assembly processes involve silver ion coordination and argentophilic interactions.

Purpose of the Study:

• To design and synthesize a novel two-dimensional 14-nucleus silver poly-cluster.
• To investigate the potential of this poly-cluster for green energy applications.

Main Methods:

• A combination of two synthetic methods was employed for poly-cluster synthesis.
• Tetradecafluoroazelaic acid was used as a bridging ligand to connect silver cluster units.

Main Results:

• A highly stable, conductive two-dimensional 14-nucleus silver poly-cluster was successfully synthesized.
• The poly-cluster exhibits high energy density (372 F g⁻¹ at 4.5 A g⁻¹), excellent cycling stability, and great capacity.
• Demonstrated high power density and long cycle life over 6000 cycles (95%) with tolerance to a wide range of scan rates.

Conclusions:

• The novel silver poly-cluster offers a promising material for high-performance energy storage devices.
• Its stability, conductivity, and electrochemical properties make it suitable for green energy applications.
• This work advances the development of advanced nanostructured materials for sustainable energy solutions.