Work

SiC-induced modification of MnCo2O4 nanoneedles fabricated on Ni foam for binder-free electrodes in high-performance asymmetrical supercapacitors

Year: 2024

Type: article

Abstract: Supercapacitors with large energy densities are required for commercial applications. Herein, the urchin-like and hexagonal MnCo2O4/SiC composite is prepared in situ on Ni foam. The urchin-like MnCo2O4/SiC consists of nanoneedle clusters with a length of about 10 μm and a diameter of 20 nm. The MnCo2O4/SiC||AC asymmetrical supercapacitor (ASCs) shows an energy density of 90.3 Wh/kg (1.73 F cm-2) at a power density of 1.25 kW/kg together with 92.1% retention of the specific capacitance after 10,000 cycles. The results reveal excellent properties and large commercial potential.

Source: Materials Letters

DOI: 10.1016/j.matlet.2024.137665

Authors: Dajun Wu, Panyi Wu, Zhengpeng Xia, Xuekun Hong, Bin Qian, Paul K. Chu

Institutions: Suzhou University of Technology, City University of Hong Kong

Language: English

Topic: Supercapacitor Materials and Fabrication

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $2,540