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首页> 外文期刊>Crystal growth & design >Topochemical Oxidation Preparation of Regular Hexagonal Manganese Oxide Nanoplates with Birnessite-Type Layered Structure
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Topochemical Oxidation Preparation of Regular Hexagonal Manganese Oxide Nanoplates with Birnessite-Type Layered Structure

机译：水钠锰矿型层状结构规则六边形氧化锰纳米板的拓扑化学氧化制备

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摘要

The birnessite-type layered manganese oxide nanoplates with good dispersity and regular hexagonal morphology were obtained by topochemical oxidizing precursor Mn(OH)2 in NaClO solution for 24 h at room temperature, and its formation process was systematically investigated on the basis of the XRD pattern, FESEM and TEM images, XPS, Raman spectra, and TG-DTA analysis. The research results showed that the obtained birnessite-type layered manganese oxide nanoplates inherited the layered structure and regular hexagonal morphology from their Mn(OH)_2 precursor. The regular hexagonal nanoplates were about 150 nm in each lateral edge with a thickness of 120 nm, which were selfassembled from MnO_2 particles. The dispersity and regular morphology of the obtained materials were affected by the precursor Mn(OH)_2 and the oxidation reaction times. This intermediate-mediated topochemical oxidation method could contribute to the design of new kinds of metal oxide materials with novel morphology and potential application.
机译：拓扑化学氧化前驱体Mn（OH）2在NaClO溶液中室温放置24 h，得到了具有良好分散性和规则六边形形态的水钠锰矿型层状氧化锰纳米板，并根据XRD图谱系统地研究了其形成过程。 ，FESEM和TEM图像，XPS，拉曼光谱和TG-DTA分析。研究结果表明，获得的水钠锰矿型层状氧化锰纳米板从其Mn（OH）_2前体继承了层状结构和规则的六角形形态。规则的六边形纳米板的每个侧边约为150 nm，厚度为120 nm，由MnO_2颗粒自组装而成。所得材料的分散性和规则形态受前驱体Mn（OH）_2和氧化反应时间的影响。这种中间体介导的拓扑化学氧化方法可以为新型金属氧化物材料的设计提供新的形态和潜在的应用前景。

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