Macroporous SnO2 foam was successfully synthesized via a simple soft-chemical route by hybridization between alkylamine and tin(IV) oxide. According to X-ray diffraction (XRD) analysis, the as-prepared SnO2 foam had a highly ordered lamella structure along the crystallographic c-axis, which transformed to a rutile phase after thermal treatment at 300 °C. X-ray absorption spectroscopy (XAS) at the Sn K-edge revealed that SnO2 particles in the hybrid material maintained their nanosized structure after hybridization with alkylamine. Scanning electron microscope (SEM) images clearly showed that the as-prepared SnO2 foam had a macroporous structure. This synthetic route can be extended to the development of open frameworks with good electrochemical properties in battery applications.
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机译：通过烷基胺与氧化锡（IV）的杂交，通过简单的软化学方法成功合成了大孔SnO2泡沫。根据X射线衍射（XRD）分析，所制备的SnO2泡沫沿晶体c轴具有高度有序的层状结构，在300°C热处理后转变为金红石相。 Sn K边缘的X射线吸收光谱（XAS）显示，杂化材料中的SnO2颗粒与烷基胺杂交后仍保持其纳米尺寸结构。扫描电子显微镜（SEM）图像清楚地表明，所制备的SnO 2泡沫具有大孔结构。这种合成路线可以扩展到在电池应用中开发具有良好电化学性能的开放框架。
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