Group 1 - Chinese scientists have utilized in-situ liquid-phase transmission electron microscopy to observe the dynamic process of gold nanoparticles forming on the surface of pyrite in real-time, proposing a new mechanism for gold precipitation induced by pyrite [1][3] - The research team, led by researchers Zhu Jianxi and Xian Haiyang from the Guangzhou Institute of Geochemistry, observed the reaction process with a gold solution concentration of 10 ppb, revealing that a "dense liquid layer" forms around the pyrite after approximately 13 minutes of contact [3] - Gold nanoparticles begin to appear within this dense liquid layer around 20 minutes after contact, indicating that the mechanism can drive gold migration and accumulation even at extremely low concentrations in the external solution [3][4] Group 2 - The mechanism discovered is applicable to both hydrothermal gold deposits and surface gold enrichment processes, highlighting its significance in understanding gold formation [4]
事关黄金，中国科学家首次纳米级“直播”！
Huan Qiu Wang Zi Xun·2026-01-20 03:43