Increasingly, future energy conversion systems highly demands non-noble metal catalysts with high activity and low cost for hydrogen evolution reaction (HER). This paper reports the use of waste sugarcane bagasse (SCB)-derived biomass carbon (SCBC) to synthesize carbon-supported molybdenum disulfide (MoS₂) nanosheets for HER activity. The MoS₂ nanosheets are uniformly loaded on the SCBC and show a vertical growth trend. Together, a synergistic effect was produced that impacted HER activity. The obtained MoS₂/SCBC 2:1 showed admirable HER electrochemical activity, with a minimum overpotential of 142 mV at 10 mA cm⁻², Tafel slope of 71 mV·dec^-1 and C_dl value of 65.26 mF cm⁻². The MoS₂/SCBC 2:1 catalyst also exhibited high stability under acidic conditions. In conclusion, a non-noble metal electrocatalyst with low-cost and high-activity for HER from biomass waste has been provided for energy conversion system.

未来的能量转换系统越来越需要具有高活性和低成本的非贵金属催化剂用于析氢反应（HER）。本文报道了使用废甘蔗渣 (SCB) 衍生的生物质碳 (SCBC) 来合成碳负载的二硫化钼 (MoS ₂ ) 纳米片以提高 HER 活性。MoS ₂纳米片均匀地负载在SCBC上并显示出垂直增长趋势。总之，产生了影响 HER 活性的协同效应。获得的 MoS ₂ /SCBC 2:1 显示出令人钦佩的 HER 电化学活性，在 10 mA cm ^-2时的最小过电位为 142 mV，Tafel 斜率为 71 mV·dec ^-1和C _dl值为65.26 mF cm ^-2。MoS ₂ /SCBC 2:1 催化剂在酸性条件下也表现出高稳定性。总之，已经为能量转换系统提供了一种低成本和高活性的非贵金属电催化剂，用于生物质废物的 HER。