Silicon nanopowder20-200nm

Product Name Silicon nanopowder20-200nm Product Overview The nanoscale particle size results in distinct physical and chemical properties of silicon nanopowder compared to silicon materials of conventional size; for instance, their optical, electrical, and magnetic properties undergo significant changes. As the particle size decreases, the specific surface area of silicon nanopowder increases substantially, leading to a higher number of surface atoms, an increased surface energy, and thereby enhanced reactivity. Technical Parameter Grain size: 20-200nm(TEM); Appearance: Brown powder Product Features High specific surface area and low bulk density are distinctive characteristics of silicon nanopowder. Due to the nanoscale effect, silicon nanopowder possesses a specific surface area that is significantly greater than that of bulk silicon materials. High purity and controlled surface chemistry are critical factors determining the success or failure of silicon nanopowder applications. High purity ensures the full realization of the material's intrinsic properties and prevents the introduction of impurities that could trigger additional electrochemical side reactions or create optical quenching centers. Application Fields 1)在能源存储领域,尤其是锂离子电池负极材料方面,硅纳米粉的应用最为突出。硅 理论比容量高达4200 mAh/g,远超传统石墨负极(372 mAh/g),使其成为下一代高能量密度电池的理想候选材料。 2)在电子与光子学领域,硅纳米粉的应用正从传统的半导体材料向新型功能器件拓展。 3)在生物医药领域,硅纳米粉的应用潜力源于其良好的生物相容性和可功能化的表面。 4)在环境与催化领域,硅纳米粉或其衍生物(如二氧化硅纳米颗粒)同样扮演重要角色。虽然纯硅纳米粉在此领域的直接应用较少,但其表面易于功能化的特点使其成为优良的催化剂载体。