Phosphorus Doping in Co₉S₈/Ni₃S₂ Hollow Nanorods for Supercapacitors

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Metal sulfides, characterized by high crystalline stability and narrowed band gap, are recognized as effective electrode materials for energy storage in alkaline environments. This study enhances the surface activity Co9S8/Ni3S2 hollow nanorod arrays incorporating phosphorus (P) doping. In situ Raman spectroscopy confirms that P doping facilitates rapid reconstruction media, resulting substantial amounts of oxyhydroxides significantly enhance density supercapacitors. The optimized P–Co9S8/Ni3S2 (1 h) demonstrates a 4.56-fold increase performance over original Co9S8/Ni3S2, achieving capacitance 20.5 F·cm–2 at 3 mA·cm–2 2 M KOH. hybrid supercapacitor device assembled with activated carbon achieves an 1.73 mWh cm–2 power 4.95 mW cm–2, showcasing cycling life 84.6% capacity retention after 10,000 cycles. work effectively reconstructs oxyhydroxide species on electrodes environments through engineering, providing valuable guidance design reconstructions metal sulfide using atom engineering.

Language: Английский

Oxygen vacancies-enriched CeO2-CoxOy heterostructures facilitate the “trapping-conversion” process of lithium polysulfides for high-performance Li-S batteries

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162145 - 162145

Published: April 1, 2025

Language: Английский