Ce3+掺杂La2O3的17O固体核磁共振研究

引用本文: 赵理, 丁维平, 彭路明. Ce³⁺掺杂La₂O₃的¹⁷O固体核磁共振研究[J]. 无机化学学报, 2013, 29(12): 2509-2513. doi: 10.3969/j.issn.1001-4861.2013.00.399 shu

Citation: ZHAO Li, DING Wei-Ping, PENG Lu-Ming. ¹⁷O Solid-State NMR Studies of Ce³⁺ Doped La₂O₃[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(12): 2509-2513. doi: 10.3969/j.issn.1001-4861.2013.00.399 shu

Ce³⁺掺杂La₂O₃的¹⁷O固体核磁共振研究

基金项目:
973计划青年科学专题(No．2013CB934800)资助项目。 (No．2013CB934800)

摘要: 本文用水热共沉淀法制备Ce³⁺掺杂La₂O₃的前驱体，随后在H₂/N₂气氛下用高温煅烧法合成了不同Ce³⁺浓度的掺杂La₂O₃。由于Ce³⁺的掺杂，¹⁷O固体核磁共振谱图中在698、650和558处出现了新的共振峰；随着Ce³⁺掺杂浓度的增加，这些峰的强度也随之增强。根据谱峰位置和强度，对谱图进行了归属：698、650处的共振峰应源自与Ce³⁺相连的四配位O(OCeLa₃)，558处的信号则来自于与Ce³⁺相连的六配位O(OCeLa₅)。通过¹⁷O固体核磁共振能够直接观测与Ce³⁺直接相连的O显示该方法将可能用于研究稀土掺杂氧化物功能材料。

关键词:

氧化镧;核磁共振;三价铈;密度泛函;氧17

English

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沈阳化工大学材料科学与工程学院沈阳 110142

Ce³⁺掺杂La₂O₃的¹⁷O固体核磁共振研究

English

¹⁷O Solid-State NMR Studies of Ce³⁺ Doped La₂O₃

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