研究目的
To develop an efficient and clean top-down method to prepare few-layer MoS2 nanosheets from bulk MoS2 powder using one-step laser irradiation in liquid, enhancing the conductivity and electrocatalytic activity toward HER.
研究成果
The developed method successfully produces few-layer MoS2 nanosheets with abundant S vacancies and 1T phase, significantly enhancing HER activity. The choice of protic solvent is crucial for facilitating S vacancy formation and phase transition. The MoS2 exfoliated in formic acid exhibits outstanding HER performance, demonstrating potential as a substitute for Pt-based catalysts.
研究不足
The method requires precise control of laser irradiation conditions and solvent selection to achieve optimal S vacancy and 1T phase formation. Prolonged irradiation can lead to excessive S loss and formation of metallic Mo.
