Carbonate-assisted transformation of manganese silicate nanoparticles via solid-to-hollow structural transition

• Published in: Microporous and mesoporous materials Vol. 354; p. 112560
• Main Authors: Zhang, Ye, Gu, Zhengying, Hu, Wenli, Li, Shumin, Yao, Yining, Yu, Chengzhong
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 15.04.2023
• Subjects: Bubble-like manganese silicate; Solid-to-hollow conversion; Thermal decomposition; Bubble-like manganese silicate; Thermal decomposition; Solid-to-hollow conversion
• ISSN: 1387-1811; 1873-3093
• DOI: 10.1016/j.micromeso.2023.112560

The bubble-like manganese silicate nanoparticles with a diameter of ∼10 nm have attracted much attention in diverse applications, however their formation mechanisms are under debate. Herein, we revisit the formation of bubble-like manganese silicate nanoparticles and demonstrate a solid-to-hollow conversion process. The solid MnxOy(CO3)mSiz as an intermediate is formed during hydrothermal reaction. The thermal decomposition of MnxOy(CO3)mSiz leads to the solid to hollow structure transformation. Finally, bubble-like manganese silicate nanoparticles are formed. These findings are expected to provide insights in designing other hollow metal silicate nanoparticles. [Display omitted] •The bubble-like manganese silicate hollow spheres (∼10 nm) were formed by a solid-to-hollow conversion process.•The thermal decomposition of the formed solid MnxOy(CO3)mSiz leads to the solid to hollow structure transformation.