Abstract
Over the past decade, ultrathin lanthanide oxides (Ln2O3, Ln = La to Lu) nanomaterials have been intensively studied in the fields of rare earth materials science. This unique class of nanomaterials has shown many unprecedented properties (big surface area, high surface effect, physical and chemical activities) and is thus being explored for numerous promising applications. In this review, a brief introduction of ultrathin Ln2O3 nanomaterials was given and their unique advantages were highlighted. Then, the typical synthetic methodologies were summarized and compared (thermal decomposition, solvothermal, soft template, co-precipition and microwave etc.). Due to the high surface effect, some promising applications of ultrathin Ln2O3 nanomaterials, such as drug delivery and catalysis of CO oxidation, were reviewed. Finally, on the basis of current achievements on ultrathin Ln2O3 nanomaterials, personal perspectives and challenges on future research directions were proposed.
摘要
在过去的十年中, 超薄稀土氧化物纳米材料日益成为稀土材料科学的研究热点。由于其高的比表面积、强的表面效应及丰富多样的物化活性位点,超薄稀土氧化物纳米材料正被广泛应用在不同领域。本文首先简要介绍了超薄稀土氧化物纳米材料的研究背景,其次总结了此类纳米材料的软化学合成方法,如热分解、溶剂热、软模板、共沉淀、超声微波等方法,并概述了不同方法的合成机理和合成特点。由于超薄稀土氧化物纳米材料独特的表面性质,本文还简要评价了此类材料在药物控释及催化反应领域的应用特点。最后,对未来此方向发展所面临的机遇和挑战进行了阐述。
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Acknowledgments
This work was supported by the Start-up Funding from Xi’an Jiaotong University, the Fundamental Research Funds for the Central Universities (2015qngz12), the National Natural Science Foundation of China (21371140), and the China National Funds for Excellent Young Scientists (21522106).
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Xinyu Zhang and Yongwei Wang contributed equally to this work.
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Zhang, X., Wang, Y., Cheng, F. et al. Ultrathin lanthanide oxides nanomaterials: synthesis, properties and applications. Sci. Bull. 61, 1422–1434 (2016). https://doi.org/10.1007/s11434-016-1155-2
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DOI: https://doi.org/10.1007/s11434-016-1155-2