Samarium oxychloride (SmOCl) is a promising photocatalyst for environment remediation. It is difficult to form SmOCl nanoplate by sophisticated wet chemical techniques used to prepare other layer-structured rare earth oxychloride nanoplates. Here, we report the synthesis of SmOCl nanoplates by chemical vapour deposition (CVD). Transmission electron microscopy characterization reveals that the nanoplates are single crystalline SmOCl with exposed {001} facets. Two-dimensional growth of SmOCl nanoplates is improved by adding decaborane in the atmosphere of CVD system. The largest size of SmOCl nanoplates approaches ∼5 μm. The growth process of SmOCl nanoplates is studied. This result shows that CVD is a suitable method to grow large SmOCl nanoplates.

氯氧化mar（SmOCl）是用于环境修复的有前途的光催化剂。通过用于制备其他层状结构的氯氧化稀土纳米板的精密湿化学技术难以形成SmOCl纳米板。在这里，我们报告通过化学气相沉积（CVD）合成SmOCl纳米板。透射电子显微镜表征表明，纳米板是具有暴露的{001}小平面的单晶SmOCl。通过在CVD系统的气氛中添加十硼烷可改善SmOCl纳米板的二维生长。SmOCl纳米板的最大尺寸约为5μm。研究了SmOCl纳米板的生长过程。该结果表明，CVD是用于生长大型SmOCl纳米板的合适方法。