Controlled syntheses of monodispersed metal oxide nanocrystals from bulk metal oxide materials,CrystEngComm

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Controlled syntheses of monodispersed metal oxide nanocrystals from bulk metal oxide materials
CrystEngComm ( IF 2.6 ) Pub Date : 2020-06-17 , DOI: 10.1039/d0ce00193g
Kaixuan Zhao _{1,

2,

3,

4} , Zhijie Yang _{1,

2,

3,

4} , Huiying Wei _{1,

2,

3,

4} , Jinxin Guo _{1,

2,

3,

4} , Yanzhao Yang _{1,

2,

3,

4} , Jingjing Wei _{1,

2,

3,

4}

Affiliation

The prevalent synthesis of colloidal metal oxide nanocrystals relies on the synthesis of various precursors, such as organometallic compounds, which are usually sensitive to moisture or oxygen and generally expensive. Based on the economic efficiency, the costs of the starting materials and synthetic process should be addressed. Herein, a general simple synthetic procedure from inexpensive and nontoxic precursors is developed. Under optimized reaction conditions, MnO nanocrystals are synthesized with commercially purchased bulk manganese oxides as starting materials, such as MnO, MnO₂, and Mn₃O₄. The size and morphologies of nanoparticles are modulated by tuning the types and dosage of coating agents. Moreover, this synthetic strategy is further extended to other nanoparticles including Fe₃O₄ nanocrystals and FeMnO_x nanocrystals. Furthermore, Re doped MnO nanocrystals exhibiting fluorescence properties have been synthesized with this method, which endows the fluorescence properties to these oxide nanocrystals.

中文翻译：

由块状金属氧化物材料受控合成单分散金属氧化物纳米晶体

胶体金属氧化物纳米晶体的普遍合成依赖于各种前体的合成，例如有机金属化合物，其通常对湿气或氧气敏感并且通常昂贵。基于经济效率，应解决原材料和合成工艺的成本。本文中，开发了一种由廉价且无毒的前体合成的简单方法。在优化的反应条件下，以商业购买的块状锰氧化物为起始原料（如MnO，MnO ₂和Mn ₃ O _4）合成MnO纳米晶体。。纳米粒子的大小和形态可通过调整涂层剂的类型和剂量来调节。此外，该合成策略进一步扩展到包括Fe ₃ O ₄纳米晶体和FeMnO _x纳米晶体的其他纳米颗粒。此外，已经用这种方法合成了显示出荧光性质的Re掺杂的MnO纳米晶体，这赋予了这些氧化物纳米晶体荧光性。

更新日期：2020-07-20

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